1376 HR 1
Yoke type track rollers, stud type track rollers, ball bearing track rollers
Track rollers
Matrix for bearing preselection __________________________________________________________________________1378
1 Yoke type roller bearing
track rollers, stud type
roller bearing track rollers _______________1380
1.1 Bearing design _______________________________________________________________________________________________________________________________1380
1.2 Load carrying capacity _____________________________________________________________________________________1390
1.3 Angular misalignment _______________________________________________________________________________________1391
1.4 Lubrication _____________________________________________________________________________________________________________________________________________________1392
1.5 Sealing __________________________________________________________________________________________________________________________________________________________________________1395
1.6 Speeds __________________________________________________________________________________________________________________________________________________________________________1396
1.7 Noise _____________________________________________________________________________________________________________________________________________________________________________________1396
1.8 Temperature range _________________________________________________________________________________________________________1397
1.9 Cages ___________________________________________________________________________________________________________________________________________________________________________________1397
1.10 Internal clearance ______________________________________________________________________________________________________________1398
1.11 Dimensions, tolerances ______________________________________________________________________________1398
1.12 Suffixes _______________________________________________________________________________________________________________________________________________________________________1398
1.13 Structure of bearing designation ____________________________1399
1.14 Dimensioning ______________________________________________________________________________________________________________________________________1400
1.15 Minimum load __________________________________________________________________________________________________________________________________1402
1.16 Design of bearing arrangements ______________________________1402https://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1377
Yoke type track rollers, stud type track rollers, ball bearing track rollers
1.17 Mounting and dismounting _________________________________________________________1411
1.18 Legal notice regarding
data freshness ________________________________________________________________________________________________________________________________1414
1.19 Further information ______________________________________________________________________________________________________1415
Product tables _______________________________________________________________________________________________________________________________________________________________________1416
r Yoke type roller bearing track rollers
without axial guidance, open
__________________________________________________________________________________________________1416
Yoke type roller bearing track rollers
without axial guidance, sealed
_________________________________________________________________________________________1417
Yoke type roller bearing track rollers
with axial guidance
_________________________________________________________________________________________________________________________________________________________1418
Yoke type roller bearing track rollers
with axial guidance, sealed
____________________________________________________________________________________________________________1419
Yoke type roller bearing track rollers
with optimised INA profile
___________________________________________________________________________________________________________________1420
Stud type needle roller bearing track rollers
with axial guidance
_________________________________________________________________________________________________________________________________________________________1422
Stud type cylindrical roller bearing track rollers
with axial guidance
_________________________________________________________________________________________________________________________________________________________1426
2 Yoke type ball bearing
track rollers, stud type
ball bearing track rollers ________________________1428
2.1 Bearing design _______________________________________________________________________________________________________________________________1428
2.2 Load carrying capacity _____________________________________________________________________________________1431
2.3 Compensation
of angular misalignments ________________________________________________________________1432
2.4 Lubrication ____________________________________________________________________________________________________________________________________________________1432
2.5 Sealing __________________________________________________________________________________________________________________________________________________________________________1432
2.6 Speeds __________________________________________________________________________________________________________________________________________________________________________1433
2.7 Noise _____________________________________________________________________________________________________________________________________________________________________________________1433
2.8 Temperature range _________________________________________________________________________________________________________1434
2.9 Cages ___________________________________________________________________________________________________________________________________________________________________________________1434
2.10 Internal clearance ______________________________________________________________________________________________________________1434
2.11 Dimensions, tolerances ______________________________________________________________________________1435
2.12 Suffixes _______________________________________________________________________________________________________________________________________________________________________1435
2.13 Structure of bearing designation ____________________________1435
2.14 Dimensioning ______________________________________________________________________________________________________________________________________1436
2.15 Minimum load ___________________________________________________________________________________________________________________________________1436
2.16 Design of bearing arrangements ______________________________1437
2.17 Mounting and dismounting __________________________________________________________1437
2.18 Legal notice regarding
data freshness ________________________________________________________________________________________________________________________________1439
2.19 Further information _______________________________________________________________________________________________________1439
Product tables ________________________________________________________________________________________________________________________________________________________________________1440
r Yoke type ball bearing track rollers,
single row, sealed
_______________________________________________________________________________________________________________________________________________________________1440
Yoke type ball bearing track rollers,
double row, sealed
__________________________________________________________________________________________________________________________________________________________1441
Stud type ball bearing track rollers,
sealed
_________________________________________________________________________________________________________________________________________________________________________________________________________________________________1444
Stud type ball bearing track rollers
with eccentric collar, sealed
________________________________________________________________________________________________________1446
Track rollers with plastic outer tyre,
sealed
_________________________________________________________________________________________________________________________________________________________________________________________________________________________________1447https://www.schaeffler.de/std/1D65
Yoke type track rollers, stud type track rollers, ball bearing track rollers
1.17 Mounting and dismounting _________________________________________________________1411
1.18 Legal notice regarding
data freshness ________________________________________________________________________________________________________________________________1414
1.19 Further information ______________________________________________________________________________________________________1415
Product tables _______________________________________________________________________________________________________________________________________________________________________1416
r Yoke type roller bearing track rollers
without axial guidance, open
__________________________________________________________________________________________________1416
Yoke type roller bearing track rollers
without axial guidance, sealed
_________________________________________________________________________________________1417
Yoke type roller bearing track rollers
with axial guidance
_________________________________________________________________________________________________________________________________________________________1418
Yoke type roller bearing track rollers
with axial guidance, sealed
____________________________________________________________________________________________________________1419
Yoke type roller bearing track rollers
with optimised INA profile
___________________________________________________________________________________________________________________1420
Stud type needle roller bearing track rollers
with axial guidance
_________________________________________________________________________________________________________________________________________________________1422
Stud type cylindrical roller bearing track rollers
with axial guidance
_________________________________________________________________________________________________________________________________________________________1426
2 Yoke type ball bearing
track rollers, stud type
ball bearing track rollers ________________________1428
2.1 Bearing design _______________________________________________________________________________________________________________________________1428
2.2 Load carrying capacity _____________________________________________________________________________________1431
2.3 Compensation
of angular misalignments ________________________________________________________________1432
2.4 Lubrication ____________________________________________________________________________________________________________________________________________________1432
2.5 Sealing __________________________________________________________________________________________________________________________________________________________________________1432
2.6 Speeds __________________________________________________________________________________________________________________________________________________________________________1433
2.7 Noise _____________________________________________________________________________________________________________________________________________________________________________________1433
2.8 Temperature range _________________________________________________________________________________________________________1434
2.9 Cages ___________________________________________________________________________________________________________________________________________________________________________________1434
2.10 Internal clearance ______________________________________________________________________________________________________________1434
2.11 Dimensions, tolerances ______________________________________________________________________________1435
2.12 Suffixes _______________________________________________________________________________________________________________________________________________________________________1435
2.13 Structure of bearing designation ____________________________1435
2.14 Dimensioning ______________________________________________________________________________________________________________________________________1436
2.15 Minimum load ___________________________________________________________________________________________________________________________________1436
2.16 Design of bearing arrangements ______________________________1437
2.17 Mounting and dismounting __________________________________________________________1437
2.18 Legal notice regarding
data freshness ________________________________________________________________________________________________________________________________1439
2.19 Further information _______________________________________________________________________________________________________1439
Product tables ________________________________________________________________________________________________________________________________________________________________________1440
r Yoke type ball bearing track rollers,
single row, sealed
_______________________________________________________________________________________________________________________________________________________________1440
Yoke type ball bearing track rollers,
double row, sealed
__________________________________________________________________________________________________________________________________________________________1441
Stud type ball bearing track rollers,
sealed
_________________________________________________________________________________________________________________________________________________________________________________________________________________________________1444
Stud type ball bearing track rollers
with eccentric collar, sealed
________________________________________________________________________________________________________1446
Track rollers with plastic outer tyre,
sealed
_________________________________________________________________________________________________________________________________________________________________________________________________________________________________1447https://www.schaeffler.de/std/1D65
1378 HR 1
Track rollers
i Track rollersTrack rollers
Matrix for bearing preselection
The matrix gives an
overview of the types
and design features of
yoke type track rollers,
stud type track rollers and
ball bearing track rollers.
It can be used to make
a preliminary assessment
of whether a bearing is
fundamentally suitable for
the envisaged application.
The additional information
provided in the product
chapter (see column
“detailed information”) and
in the Technical principles
must, however, be observed
in addition to this overview
in selection of the bearing.
1) Support of axial forces due to
tilting and skewed running
u1391|1.3 and u1432|2.3
2) Inner rings or open design only
3) Valid only for yoke or stud type
roller bearing track rollers with
a metal cage or full complement
roller designs, if unsealed or
with a gap or labyrinth seal.
Other values u1397|e8
Design features and suitability Yoke type roller bearing track rollers
+++
++
+
(+)
–
✓
extremely suitable
highly suitable
suitable
suitable with restrictions
not suitable/not applicable
available
without axial
guidance
with axial
guidance
with axial guid-
ance, INA profile,
sealed
detailed
information
u 1380
Load
carrying
capacity
radial +++ +++ +++ u1390|1.2
axial,
one direction1) (+) (+) (+) u1390|1.2
axial,
both directions1) (+) (+) (+) u1390|1.2
moments – – –
Compen-
sation of
angular mis-
alignments
static ++ ++ ++ u1391|1.3
dynamic + + + u1391|1.3
Bearing
design
cylindrical bore ✓ ✓ ✓ u1380|1.1
tapered bore – – –
separable ✓ ✓2) – u1380|1.1
Lubrication greased ✓ ✓ ✓ u1392|1.4
Sealing open ✓ – – u1395|1.5
non-contact – ✓ ✓ u1395|1.5
contact ✓ ✓ ✓ u1395|1.5
Operating temperature in °C from
to
–30
+1403) –30
+1403) –30
+1403) u1397|1.8
Suitability
for
high speeds ++ ++ ++ u1396|1.6
high running accuracy ++ ++ ++ u1398|1.11
low-noise running + + + u1396|1.7
u27
high rigidity +++ +++ +++ u54
reduced friction ++ ++ ++ u56
length compensation
within bearing
– – – u25
non-locating bearing
arrangement
– – – u139
locating bearing
arrangement
– – – u139
X-life bearings – – ✓ u1381
Outside diameter D in mm from
to
16
90
5
310
35
100
u1416
Product tables from page u r 1416 1418 1420
ihttps://www.schaeffler.de/std/1D65
Track rollers
i Track rollersTrack rollers
Matrix for bearing preselection
The matrix gives an
overview of the types
and design features of
yoke type track rollers,
stud type track rollers and
ball bearing track rollers.
It can be used to make
a preliminary assessment
of whether a bearing is
fundamentally suitable for
the envisaged application.
The additional information
provided in the product
chapter (see column
“detailed information”) and
in the Technical principles
must, however, be observed
in addition to this overview
in selection of the bearing.
1) Support of axial forces due to
tilting and skewed running
u1391|1.3 and u1432|2.3
2) Inner rings or open design only
3) Valid only for yoke or stud type
roller bearing track rollers with
a metal cage or full complement
roller designs, if unsealed or
with a gap or labyrinth seal.
Other values u1397|e8
Design features and suitability Yoke type roller bearing track rollers
+++
++
+
(+)
–
✓
extremely suitable
highly suitable
suitable
suitable with restrictions
not suitable/not applicable
available
without axial
guidance
with axial
guidance
with axial guid-
ance, INA profile,
sealed
detailed
information
u 1380
Load
carrying
capacity
radial +++ +++ +++ u1390|1.2
axial,
one direction1) (+) (+) (+) u1390|1.2
axial,
both directions1) (+) (+) (+) u1390|1.2
moments – – –
Compen-
sation of
angular mis-
alignments
static ++ ++ ++ u1391|1.3
dynamic + + + u1391|1.3
Bearing
design
cylindrical bore ✓ ✓ ✓ u1380|1.1
tapered bore – – –
separable ✓ ✓2) – u1380|1.1
Lubrication greased ✓ ✓ ✓ u1392|1.4
Sealing open ✓ – – u1395|1.5
non-contact – ✓ ✓ u1395|1.5
contact ✓ ✓ ✓ u1395|1.5
Operating temperature in °C from
to
–30
+1403) –30
+1403) –30
+1403) u1397|1.8
Suitability
for
high speeds ++ ++ ++ u1396|1.6
high running accuracy ++ ++ ++ u1398|1.11
low-noise running + + + u1396|1.7
u27
high rigidity +++ +++ +++ u54
reduced friction ++ ++ ++ u56
length compensation
within bearing
– – – u25
non-locating bearing
arrangement
– – – u139
locating bearing
arrangement
– – – u139
X-life bearings – – ✓ u1381
Outside diameter D in mm from
to
16
90
5
310
35
100
u1416
Product tables from page u r 1416 1418 1420
ihttps://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1379
Matrix for bearing preselection i
Stud type needle roller
bearing track rollers
with axial guidance
Stud type cylindrical roller
bearing track rollers
with axial guidance
Ball bearing track rollers
detailed
information
single row
double row
stud type
ball bearing
track rollers
with plastic
outer tyre
detailed
information
u 1380 u 1428
+++ +++ u1390|1.2 +++ +++ +++ +++ u1431|2.2
(+) (+) u1390|1.2 + + + + u1431|2.2
(+) (+) u1390|1.2 + + + + u1431|2.2
– – – – – –
++ ++ u1391|1.3 ++ ++ ++ ++ u1432|2.3
+ + u1391|1.3 ++ ++ ++ ++ u1432|2.3
✓ ✓ u1380|1.1 ✓ ✓ ✓ ✓ u1428|2.1
– – – – – –
– – u1380|1.1 – – – – u1428|2.1
✓ ✓ u1392|1.4 ✓ ✓ ✓ ✓ u1432|2.4
– – u1395|1.5 – – – – u1432|2.5
✓ ✓ u1395|1.5 – ✓ ✓ ✓ u1432|2.5
✓ ✓ u1395|1.5 ✓ ✓ ✓ ✓ u1432|2.5
–30
+1403) –30
+1403) u1397|1.8 –20
+120
–20
+120
–20
+120
–20
+80
u1434|2.8
++ ++ u1396|1.6 +++ +++ +++ +++ u1433|2.6
++ ++ u1398|1.11 ++ ++ ++ ++ u1435|2.11
u114
+ + u1396|1.7
u27
+ + + + u1433|2.7
u27
++ ++ u54 + + + + u54
++ ++ u56 +++ +++ +++ +++ u56
– – u25 – – – – u25
– – u139 – – – – u139
– – u139 – – – – u139
– ✓ u1384 – ✓ – – u1431
16
90
35
90
u1422 13
90
17
100
35
80
27,5
46,8
u1440
1422 1426 1440 1441 1444 1447 rhttps://www.schaeffler.de/std/1D65
Matrix for bearing preselection i
Stud type needle roller
bearing track rollers
with axial guidance
Stud type cylindrical roller
bearing track rollers
with axial guidance
Ball bearing track rollers
detailed
information
single row
double row
stud type
ball bearing
track rollers
with plastic
outer tyre
detailed
information
u 1380 u 1428
+++ +++ u1390|1.2 +++ +++ +++ +++ u1431|2.2
(+) (+) u1390|1.2 + + + + u1431|2.2
(+) (+) u1390|1.2 + + + + u1431|2.2
– – – – – –
++ ++ u1391|1.3 ++ ++ ++ ++ u1432|2.3
+ + u1391|1.3 ++ ++ ++ ++ u1432|2.3
✓ ✓ u1380|1.1 ✓ ✓ ✓ ✓ u1428|2.1
– – – – – –
– – u1380|1.1 – – – – u1428|2.1
✓ ✓ u1392|1.4 ✓ ✓ ✓ ✓ u1432|2.4
– – u1395|1.5 – – – – u1432|2.5
✓ ✓ u1395|1.5 – ✓ ✓ ✓ u1432|2.5
✓ ✓ u1395|1.5 ✓ ✓ ✓ ✓ u1432|2.5
–30
+1403) –30
+1403) u1397|1.8 –20
+120
–20
+120
–20
+120
–20
+80
u1434|2.8
++ ++ u1396|1.6 +++ +++ +++ +++ u1433|2.6
++ ++ u1398|1.11 ++ ++ ++ ++ u1435|2.11
u114
+ + u1396|1.7
u27
+ + + + u1433|2.7
u27
++ ++ u54 + + + + u54
++ ++ u56 +++ +++ +++ +++ u56
– – u25 – – – – u25
– – u139 – – – – u139
– – u139 – – – – u139
– ✓ u1384 – ✓ – – u1431
16
90
35
90
u1422 13
90
17
100
35
80
27,5
46,8
u1440
1422 1426 1440 1441 1444 1447 rhttps://www.schaeffler.de/std/1D65
1380 HR 1
Bearing design
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
1 Yoke type roller bearing
track rollers, stud type
roller bearing track rollers
Yoke and stud type roller bearing track rollers:
■ are ready-to-fit needle or cylindrical roller bearings of single or
double row design u1382|q2 to u1387|q14
■ are mounted on shafts or studs (yoke type track rollers) or
supplied with a heavy-section roller stud with fixing thread and
a mounting aid (stud type track rollers) u1380|q1
■ have particularly thick-walled outer rings with a crowned outside
surface u1380|1.1
■ can support high radial loads u1390|1.2
■ tolerate axial loads which are due to small misalignment defects,
skewed running or temporary contact running impacts u1391|1.3
■ are available with or without an inner ring (yoke type track rollers)
■ are produced with or without axial guidance of the outer ring
(stud type track rollers are always produced with axial guidance)
■ are open or sealed on both sides u1395|1.5
■ are not mounted in a housing bore, but are supported on a flat
mating track u1380|q1
■ can be adjusted to the mating track in the design with the eccentric
collar, thus permitting, for example, larger manufacturing tolerances
in the adjacent construction.
1.1 Bearing design
✎ Design variants This range of yoke type track rollers comprises bearings:
■ with or without an inner ring (without axial guidance) u1382|q2,
u1382|q3
■ with an inner ring (with axial guidance)
– with cage u1383|q4
– full complement needle roller set u1383|q5
– full complement cylindrical roller set u1383|q6
– full complement cylindrical roller set, with central rib u1384|q7.
q1
Double row stud type track roller
supported on a flat mating track
Mating trackhttps://www.schaeffler.de/std/1D65
Bearing design
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
1 Yoke type roller bearing
track rollers, stud type
roller bearing track rollers
Yoke and stud type roller bearing track rollers:
■ are ready-to-fit needle or cylindrical roller bearings of single or
double row design u1382|q2 to u1387|q14
■ are mounted on shafts or studs (yoke type track rollers) or
supplied with a heavy-section roller stud with fixing thread and
a mounting aid (stud type track rollers) u1380|q1
■ have particularly thick-walled outer rings with a crowned outside
surface u1380|1.1
■ can support high radial loads u1390|1.2
■ tolerate axial loads which are due to small misalignment defects,
skewed running or temporary contact running impacts u1391|1.3
■ are available with or without an inner ring (yoke type track rollers)
■ are produced with or without axial guidance of the outer ring
(stud type track rollers are always produced with axial guidance)
■ are open or sealed on both sides u1395|1.5
■ are not mounted in a housing bore, but are supported on a flat
mating track u1380|q1
■ can be adjusted to the mating track in the design with the eccentric
collar, thus permitting, for example, larger manufacturing tolerances
in the adjacent construction.
1.1 Bearing design
✎ Design variants This range of yoke type track rollers comprises bearings:
■ with or without an inner ring (without axial guidance) u1382|q2,
u1382|q3
■ with an inner ring (with axial guidance)
– with cage u1383|q4
– full complement needle roller set u1383|q5
– full complement cylindrical roller set u1383|q6
– full complement cylindrical roller set, with central rib u1384|q7.
q1
Double row stud type track roller
supported on a flat mating track
Mating trackhttps://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1381
Bearing design
Stud type track rollers are available in the following designs:
■ Without eccentric collar
– with cage u1385|q8
– full complement needle roller set u1385|q9
– full complement cylindrical roller set u1386|q10
– full complement cylindrical roller set and
with central rib u1386|q11
■ With eccentric collar
– with cage u1387|q12
– full complement cylindrical roller set u1387|q13
– full complement cylindrical roller set and
with central rib u1387|q14.
Yoke type track rollers (general)
✎ The bearings have
thick-walled outer rings and
are mounted on shafts or
studs
Yoke type track rollers are single or double row units mounted on shafts
or studs u1382|q2 to u1384|q7. They comprise thick-walled outer
rings with a profiled outside surface and needle roller and cage
assemblies or full complement needle roller or cylindrical roller sets.
Yoke type track rollers can support high radial loads as well as axial loads
arising from slight misalignment and skewed running. The bearings are
available with or without an inner ring, with or without axial guidance and
in sealed or open versions.
✎ Typical applications Proven areas of application of these products include cam gears,
bed ways, conveying equipment and linear guidance systems.
Outside surface profile of the outer ring
✎ The outside surface is
predominantly crowned
Bearings with a crowned outside surface are predominantly used in prac-
tice since skewing usually occurs relative to the mating track and edge
stresses must be avoided.
✎ Radius of curvature The radius of curvature of the outside surface is R = 500 mm. In the case
of series NNTR..-2ZL, the radius is indicated in the product table.
✎ Optimised INA profile Yoke type track rollers NATR..-PP, NATV..-PP, NUTR and PWTR..-2RS have
an outside surface with the optimised INA profile u1387. In yoke type
track rollers with this curvature profile:
■ the Hertzian pressure is lower u1388|q15, u1388|q16
■ edge loading under tilting is lower u1388|q16
■ wear of the mating track is reduced u1389|q18, u1389|q19
■ the operating life of the mating track is extended u1388|q17
■ the rigidity in the outer ring contact is increased u1389|q20.
X-life premium quality
Series PWTR is supplied as an X-life design. Due to a modified material
and the optimised raceway geometry of the outer rings, the basic rating life
has been increased by up to 30%. The static and dynamic load carrying
capacity has also been increased. At the same time, the stress placed on
the mating track has been reduced as a result of the optimised surface
profile and its improved surface quality.
✎ Lower operating costs,
higher machine availability
In conclusion, these advantages improve the overall cost-efficiency
of the bearing position significantly and thus bring about a sustainable
increase in the efficiency of the machine and equipment.
✎ Suffix XL X-life yoke type track rollers include the suffix XL in the designation.
Yoke type track rollers without inner ring, without axial guidance
✎ The raceway must be
designed as a rolling bearing
raceway
Yoke type track rollers RSTO and RNA22..-2RSR do not have an inner ring
u1382|q2. Depending on the design, yoke type track rollers are also
available as sealed versions u1395|1.5. They are particularly compact
but require a hardened and ground raceway on the shaft or stud.
Series RSTO is not self-retaining, which means that the outer ring and
the needle roller and cage assembly can be fitted independently of each
other. This gives simplified mounting of the bearings.https://www.schaeffler.de/std/1D65
Bearing design
Stud type track rollers are available in the following designs:
■ Without eccentric collar
– with cage u1385|q8
– full complement needle roller set u1385|q9
– full complement cylindrical roller set u1386|q10
– full complement cylindrical roller set and
with central rib u1386|q11
■ With eccentric collar
– with cage u1387|q12
– full complement cylindrical roller set u1387|q13
– full complement cylindrical roller set and
with central rib u1387|q14.
Yoke type track rollers (general)
✎ The bearings have
thick-walled outer rings and
are mounted on shafts or
studs
Yoke type track rollers are single or double row units mounted on shafts
or studs u1382|q2 to u1384|q7. They comprise thick-walled outer
rings with a profiled outside surface and needle roller and cage
assemblies or full complement needle roller or cylindrical roller sets.
Yoke type track rollers can support high radial loads as well as axial loads
arising from slight misalignment and skewed running. The bearings are
available with or without an inner ring, with or without axial guidance and
in sealed or open versions.
✎ Typical applications Proven areas of application of these products include cam gears,
bed ways, conveying equipment and linear guidance systems.
Outside surface profile of the outer ring
✎ The outside surface is
predominantly crowned
Bearings with a crowned outside surface are predominantly used in prac-
tice since skewing usually occurs relative to the mating track and edge
stresses must be avoided.
✎ Radius of curvature The radius of curvature of the outside surface is R = 500 mm. In the case
of series NNTR..-2ZL, the radius is indicated in the product table.
✎ Optimised INA profile Yoke type track rollers NATR..-PP, NATV..-PP, NUTR and PWTR..-2RS have
an outside surface with the optimised INA profile u1387. In yoke type
track rollers with this curvature profile:
■ the Hertzian pressure is lower u1388|q15, u1388|q16
■ edge loading under tilting is lower u1388|q16
■ wear of the mating track is reduced u1389|q18, u1389|q19
■ the operating life of the mating track is extended u1388|q17
■ the rigidity in the outer ring contact is increased u1389|q20.
X-life premium quality
Series PWTR is supplied as an X-life design. Due to a modified material
and the optimised raceway geometry of the outer rings, the basic rating life
has been increased by up to 30%. The static and dynamic load carrying
capacity has also been increased. At the same time, the stress placed on
the mating track has been reduced as a result of the optimised surface
profile and its improved surface quality.
✎ Lower operating costs,
higher machine availability
In conclusion, these advantages improve the overall cost-efficiency
of the bearing position significantly and thus bring about a sustainable
increase in the efficiency of the machine and equipment.
✎ Suffix XL X-life yoke type track rollers include the suffix XL in the designation.
Yoke type track rollers without inner ring, without axial guidance
✎ The raceway must be
designed as a rolling bearing
raceway
Yoke type track rollers RSTO and RNA22..-2RSR do not have an inner ring
u1382|q2. Depending on the design, yoke type track rollers are also
available as sealed versions u1395|1.5. They are particularly compact
but require a hardened and ground raceway on the shaft or stud.
Series RSTO is not self-retaining, which means that the outer ring and
the needle roller and cage assembly can be fitted independently of each
other. This gives simplified mounting of the bearings.https://www.schaeffler.de/std/1D65
1382 HR 1
Bearing design
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
The rolling elements are guided by the cage. These designs do not have
axial guidance of the outer ring. Axial guidance of the outer ring and
needle roller and cage assembly (for RSTO only) must be provided in
the adjacent construction.
Yoke type track rollers with inner ring, without axial guidance
Yoke type track rollers STO and NA22..-2RSR have an inner ring
u1382|q3. Depending on the design, yoke type track rollers are also
available as sealed versions u1395|1.5. Bearings with an inner ring are
used if the shaft or stud does not have a hardened and ground raceway.
Series STO is not self-retaining. This means that the outer ring, needle
roller and cage assembly and the inner ring can be fitted independently
of each other. This gives simplified mounting of the bearings.
The rolling elements are guided by the cage. These designs do not have
axial guidance of the outer ring. Axial guidance of the outer ring and
needle roller and cage assembly (for STO only) must be provided in
the adjacent construction.
Yoke type track rollers with inner ring, with axial guidance
Yoke type track rollers with an inner ring are used if the shaft or stud does
not have a hardened and ground raceway.
✎ Designs The series NATR and NATR..-PP have a cage u1383|q4.
The series NATV and NATV..-PP have a full complement needle roller set,
while yoke type track rollers NUTR have a full complement cylindrical roller
set u1383|q5 and u1383|q6. Yoke type track rollers PWTR..-2RS
and NNTR..-2ZL have a full complement cylindrical roller set and a central
rib u1384|q7. Depending on the design, yoke type track rollers are also
available as sealed versions u1395|1.5.
q2
Yoke type track rollers without
inner ring, without axial guidance,
open or sealed on both sides
Fr = radial load
Fa = axial load
Open (RSTO)
Contact seals (RNA22..-2RSR)
000A74F5000A74F5
q3
Yoke type track rollers with inner
ring, without axial guidance,
open or sealed on both sides
Fr = radial load
Fa = axial load
Open (STO)
Contact seals (NA22..-2RSR)
000A74F8000A74F8https://www.schaeffler.de/std/1D65
Bearing design
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
The rolling elements are guided by the cage. These designs do not have
axial guidance of the outer ring. Axial guidance of the outer ring and
needle roller and cage assembly (for RSTO only) must be provided in
the adjacent construction.
Yoke type track rollers with inner ring, without axial guidance
Yoke type track rollers STO and NA22..-2RSR have an inner ring
u1382|q3. Depending on the design, yoke type track rollers are also
available as sealed versions u1395|1.5. Bearings with an inner ring are
used if the shaft or stud does not have a hardened and ground raceway.
Series STO is not self-retaining. This means that the outer ring, needle
roller and cage assembly and the inner ring can be fitted independently
of each other. This gives simplified mounting of the bearings.
The rolling elements are guided by the cage. These designs do not have
axial guidance of the outer ring. Axial guidance of the outer ring and
needle roller and cage assembly (for STO only) must be provided in
the adjacent construction.
Yoke type track rollers with inner ring, with axial guidance
Yoke type track rollers with an inner ring are used if the shaft or stud does
not have a hardened and ground raceway.
✎ Designs The series NATR and NATR..-PP have a cage u1383|q4.
The series NATV and NATV..-PP have a full complement needle roller set,
while yoke type track rollers NUTR have a full complement cylindrical roller
set u1383|q5 and u1383|q6. Yoke type track rollers PWTR..-2RS
and NNTR..-2ZL have a full complement cylindrical roller set and a central
rib u1384|q7. Depending on the design, yoke type track rollers are also
available as sealed versions u1395|1.5.
q2
Yoke type track rollers without
inner ring, without axial guidance,
open or sealed on both sides
Fr = radial load
Fa = axial load
Open (RSTO)
Contact seals (RNA22..-2RSR)
000A74F5000A74F5
q3
Yoke type track rollers with inner
ring, without axial guidance,
open or sealed on both sides
Fr = radial load
Fa = axial load
Open (STO)
Contact seals (NA22..-2RSR)
000A74F8000A74F8https://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1383
Bearing design
Bearings without a cage have the largest possible number of rolling
elements and therefore have particularly high load carrying capacity.
Due to the kinematic conditions, however, the speeds achievable
with these bearings are somewhat lower than those achievable with
the cage-guided yoke type track rollers.
Axial guidance of outer ring
✎ The type of guidance is
dependent on the series
In NATR and NATV, axial guidance is provided directly by contact washers,
while in NATR..-PP and NATV..-PP this is provided by contact washers and
plastic axial plain washers. In NUTR, the outer ring is guided by the rolling
elements, in PWTR..-2RS and NNTR..-2ZL it is guided by the central rib and
the rolling elements.
Corrosion protection
✎ Corrosion protection
by Corrotect
Series PWTR..-2RS-RR is protected against corrosion by the special
Cr(VI)-free coating Corrotect u1389. These bearings have the suffix RR.
q4
Yoke type track rollers
with inner ring, with cage,
with axial guidance,
open or sealed on both sides
Fr = radial load
Fa = axial load
Gap seals (NATR)
Plastic axial plain washers
(NATR..-PP)
000A655D000A655D
q5
Yoke type track rollers with inner
ring, full complement needle
roller set, with axial guidance,
open or sealed on both sides
Fr = radial load
Fa = axial load
Gap seals (NATV)
Plastic axial plain washers
(NATV..-PP)
000A7507000A7507
q6
Yoke type track roller with inner
ring, full complement cylindrical
roller set, with axial guidance,
sealed on both sides
Fr = radial load
Fa = axial load
Labyrinth seals (NUTR)
000A750A000A750Ahttps://www.schaeffler.de/std/1D65
Bearing design
Bearings without a cage have the largest possible number of rolling
elements and therefore have particularly high load carrying capacity.
Due to the kinematic conditions, however, the speeds achievable
with these bearings are somewhat lower than those achievable with
the cage-guided yoke type track rollers.
Axial guidance of outer ring
✎ The type of guidance is
dependent on the series
In NATR and NATV, axial guidance is provided directly by contact washers,
while in NATR..-PP and NATV..-PP this is provided by contact washers and
plastic axial plain washers. In NUTR, the outer ring is guided by the rolling
elements, in PWTR..-2RS and NNTR..-2ZL it is guided by the central rib and
the rolling elements.
Corrosion protection
✎ Corrosion protection
by Corrotect
Series PWTR..-2RS-RR is protected against corrosion by the special
Cr(VI)-free coating Corrotect u1389. These bearings have the suffix RR.
q4
Yoke type track rollers
with inner ring, with cage,
with axial guidance,
open or sealed on both sides
Fr = radial load
Fa = axial load
Gap seals (NATR)
Plastic axial plain washers
(NATR..-PP)
000A655D000A655D
q5
Yoke type track rollers with inner
ring, full complement needle
roller set, with axial guidance,
open or sealed on both sides
Fr = radial load
Fa = axial load
Gap seals (NATV)
Plastic axial plain washers
(NATV..-PP)
000A7507000A7507
q6
Yoke type track roller with inner
ring, full complement cylindrical
roller set, with axial guidance,
sealed on both sides
Fr = radial load
Fa = axial load
Labyrinth seals (NUTR)
000A750A000A750Ahttps://www.schaeffler.de/std/1D65
1384 HR 1
Bearing design
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
Stud type track rollers (general)
✎ The bearings have
thick-walled outer rings and
a heavy-section roller stud
Stud type track rollers are similar in their construction to single and double
row yoke type track rollers with axial guidance, except that the raceway is
formed by a heavy-section roller stud with a fixing thread and type-
dependent mounting aid, and with a type-dependent relubrication facility.
Due to the thick-walled outer ring with profiled outside surface and the
rolling element set, they can support high radial loads as well as axial
loads arising from slight misalignment and skewed running. The stud type
track rollers are available with or without an eccentric collar u1385|q8
to u1387|q14.
✎ Typical applications Proven areas of application of these products include cam gears,
bed ways, conveying equipment and linear guidance systems.
Outside surface profile of the outer ring
✎ The outside surface
is crowned
Stud type track rollers with a crowned outside surface are predominantly
used since skewing usually occurs relative to the mating track and
edge stresses must be avoided.
✎ Radius of curvature In series KR, the radius of curvature is R = 500 mm. The series KR..-PP,
KRE..-PP, KRV..-PP, NUKR, NUKRE, PWKR..-2RS and PWKRE..-2RS have
an outside surface with the optimised INA profile.
✎ Optimised INA profile In stud type track rollers with the optimised INA profile:
■ the Hertzian pressure is lower u1388|q15, u1388|q16
■ edge loading under tilting is lower u1388|q16
■ wear of the mating track is reduced u1389|q18, u1389|q19
■ the operating life of the mating track is extended u1388|q17
■ the rigidity in the outer ring contact is increased u1389|q20.
X-life premium quality
Stud type track rollers PWKR(E) are supplied in the X-life design. Due to
a modified material and the optimised raceway geometry of the outer
rings, the basic rating life has been increased by up to 30%. The static and
dynamic load carrying capacity has also been increased. At the same time,
the stress placed on the mating track has been reduced as a result
of the optimised surface profile and its improved surface quality.
✎ Lower operating costs,
higher machine availability
In conclusion, these advantages improve the overall cost-efficiency
of the bearing position significantly and thus bring about a sustainable
increase in the efficiency of the machine and equipment.
✎ Suffix XL X-life stud type track rollers include the suffix XL in the designation.
Stud type track rollers without eccentric collar
Stud type track rollers without an eccentric collar do not have a defined
adjustment facility in relation to the mating track on the adjacent
construction in mounting of the bearings.
✎ Designs The series KR and KR..-PP have a cage, the design KRV..-PP has a full comp-
lement needle roller set. Series NUKR has a full complement cylindrical
roller set, series PWKR..-2RS has a full complement cylindrical roller set
and a central rib u1385|q8 to u1386|q11.
q7
Yoke type track rollers with
inner ring, full complement
cylindrical roller set, with
central rib, with axial guidance,
sealed on both sides
Fr = radial load
Fa = axial load
Protected lip seals (PWTR..-2RS)
Contact washers
with lamellar ring (NNTR..-2ZL)
000A750D000A750Dhttps://www.schaeffler.de/std/1D65
Bearing design
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
Stud type track rollers (general)
✎ The bearings have
thick-walled outer rings and
a heavy-section roller stud
Stud type track rollers are similar in their construction to single and double
row yoke type track rollers with axial guidance, except that the raceway is
formed by a heavy-section roller stud with a fixing thread and type-
dependent mounting aid, and with a type-dependent relubrication facility.
Due to the thick-walled outer ring with profiled outside surface and the
rolling element set, they can support high radial loads as well as axial
loads arising from slight misalignment and skewed running. The stud type
track rollers are available with or without an eccentric collar u1385|q8
to u1387|q14.
✎ Typical applications Proven areas of application of these products include cam gears,
bed ways, conveying equipment and linear guidance systems.
Outside surface profile of the outer ring
✎ The outside surface
is crowned
Stud type track rollers with a crowned outside surface are predominantly
used since skewing usually occurs relative to the mating track and
edge stresses must be avoided.
✎ Radius of curvature In series KR, the radius of curvature is R = 500 mm. The series KR..-PP,
KRE..-PP, KRV..-PP, NUKR, NUKRE, PWKR..-2RS and PWKRE..-2RS have
an outside surface with the optimised INA profile.
✎ Optimised INA profile In stud type track rollers with the optimised INA profile:
■ the Hertzian pressure is lower u1388|q15, u1388|q16
■ edge loading under tilting is lower u1388|q16
■ wear of the mating track is reduced u1389|q18, u1389|q19
■ the operating life of the mating track is extended u1388|q17
■ the rigidity in the outer ring contact is increased u1389|q20.
X-life premium quality
Stud type track rollers PWKR(E) are supplied in the X-life design. Due to
a modified material and the optimised raceway geometry of the outer
rings, the basic rating life has been increased by up to 30%. The static and
dynamic load carrying capacity has also been increased. At the same time,
the stress placed on the mating track has been reduced as a result
of the optimised surface profile and its improved surface quality.
✎ Lower operating costs,
higher machine availability
In conclusion, these advantages improve the overall cost-efficiency
of the bearing position significantly and thus bring about a sustainable
increase in the efficiency of the machine and equipment.
✎ Suffix XL X-life stud type track rollers include the suffix XL in the designation.
Stud type track rollers without eccentric collar
Stud type track rollers without an eccentric collar do not have a defined
adjustment facility in relation to the mating track on the adjacent
construction in mounting of the bearings.
✎ Designs The series KR and KR..-PP have a cage, the design KRV..-PP has a full comp-
lement needle roller set. Series NUKR has a full complement cylindrical
roller set, series PWKR..-2RS has a full complement cylindrical roller set
and a central rib u1385|q8 to u1386|q11.
q7
Yoke type track rollers with
inner ring, full complement
cylindrical roller set, with
central rib, with axial guidance,
sealed on both sides
Fr = radial load
Fa = axial load
Protected lip seals (PWTR..-2RS)
Contact washers
with lamellar ring (NNTR..-2ZL)
000A750D000A750Dhttps://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1385
Bearing design
Bearings without a cage have the largest possible number of rolling
elements and therefore have particularly high load carrying capacity.
Due to the kinematic conditions, however, the speeds achievable
with these bearings are somewhat lower than those achievable with
the cage-guided stud type track rollers.
Axial guidance of outer ring
✎ The type of guidance is
dependent on the series
In KR, axial guidance is provided directly by the contact flange and contact
washer, while in KR..-PP and KRV..-PP this is provided by plastic axial
plain washers, the contact flange and contact washer u1385|q8 and
u1385|q9. The outer rings of series NUKR and PWKR..-2RS are guided
by the rolling elements and ribs u1386|q10 and u1386|q11.
Relubrication facility
Stud type track rollers KR16 and KR19 with a hexagonal socket cannot be
relubricated, while stud type track rollers KR16 and KR19 with a mounting
slot have a relubrication facility.
Corrosion protection
✎ Corrosion protection
by Corrotect
Series PWKR(E)..-2RS-RR is protected against corrosion by the special
Cr(VI)-free coating Corrotect u1389. These bearings have the suffix RR.
q8
Stud type track roller
without eccentric collar, with cage,
sealed on both sides
Fr = radial load
Fa = axial load
Plastic axial plain washers
(for KR..-PP) or gap seals (for KR)
000A7522000A7522
q9
Stud type track roller
without eccentric collar,
full complement needle roller set,
sealed on both sides
Fr = radial load
Fa = axial load
Plastic axial plain washers
(KRV..-PP)
000A7525000A7525https://www.schaeffler.de/std/1D65
Bearing design
Bearings without a cage have the largest possible number of rolling
elements and therefore have particularly high load carrying capacity.
Due to the kinematic conditions, however, the speeds achievable
with these bearings are somewhat lower than those achievable with
the cage-guided stud type track rollers.
Axial guidance of outer ring
✎ The type of guidance is
dependent on the series
In KR, axial guidance is provided directly by the contact flange and contact
washer, while in KR..-PP and KRV..-PP this is provided by plastic axial
plain washers, the contact flange and contact washer u1385|q8 and
u1385|q9. The outer rings of series NUKR and PWKR..-2RS are guided
by the rolling elements and ribs u1386|q10 and u1386|q11.
Relubrication facility
Stud type track rollers KR16 and KR19 with a hexagonal socket cannot be
relubricated, while stud type track rollers KR16 and KR19 with a mounting
slot have a relubrication facility.
Corrosion protection
✎ Corrosion protection
by Corrotect
Series PWKR(E)..-2RS-RR is protected against corrosion by the special
Cr(VI)-free coating Corrotect u1389. These bearings have the suffix RR.
q8
Stud type track roller
without eccentric collar, with cage,
sealed on both sides
Fr = radial load
Fa = axial load
Plastic axial plain washers
(for KR..-PP) or gap seals (for KR)
000A7522000A7522
q9
Stud type track roller
without eccentric collar,
full complement needle roller set,
sealed on both sides
Fr = radial load
Fa = axial load
Plastic axial plain washers
(KRV..-PP)
000A7525000A7525https://www.schaeffler.de/std/1D65
1386 HR 1
Bearing design
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
Stud type track rollers with eccentric collar
✎ The bearings have
a defined adjustment facility
relative to the mating track
Designs with an eccentric collar can be adjusted by means of a hexagonal
socket on the flanged or threaded side of the roller stud. The outer ring
outside surface can thus be adjusted against the mating track. As a result,
larger manufacturing tolerances can be tolerated in the adjacent construc-
tion. Furthermore, this gives improved load distribution when using sev-
eral stud type track rollers and also allows preloaded linear systems to be
easily realised.
✎ Highest point
of the eccentric collar
The highest point of the eccentric collar is indicated on the roller stud side,
the eccentricity e is stated in the product tables. This is also the location
of the radial relubrication holes, which should lie in the unloaded zone of
the rolling contact.
✎ Designs Series KRE..-PP has a cage, NUKRE and PWKRE..-2RS have a full
complement cylindrical roller set u1387|q12 to u1387|q14.
Bearings with a full complement cylindrical roller set have the largest
possible number of rolling elements and therefore have particularly high
load carrying capacity. Due to the kinematic conditions, however,
the speeds achievable with these bearings are somewhat lower than those
achievable with the cage-guided stud type track rollers.
Axial guidance of outer ring
✎ The type of guidance is
dependent on the series
In the series KRE..-PP, axial guidance is provided by the plastic axial
plain washers, contact flange and contact washers. In NUKRE, the outer
ring is guided axially by the rolling elements, in PWKRE axial guidance
of the outer ring is provided by the central rib and rolling elements.
q10
Stud type track roller
without eccentric collar,
full complement cylindrical
roller set, sealed on both sides
Fr = radial load
Fa = axial load
Labyrinth seals (NUKR)
000A7534000A7534
q11
Stud type track roller
without eccentric collar,
full complement cylindrical
roller set, with central rib,
sealed on both sides
Fr = radial load
Fa = axial load
Protected lip seals (PWKR..-2RS)
000A7538000A7538https://www.schaeffler.de/std/1D65
Bearing design
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
Stud type track rollers with eccentric collar
✎ The bearings have
a defined adjustment facility
relative to the mating track
Designs with an eccentric collar can be adjusted by means of a hexagonal
socket on the flanged or threaded side of the roller stud. The outer ring
outside surface can thus be adjusted against the mating track. As a result,
larger manufacturing tolerances can be tolerated in the adjacent construc-
tion. Furthermore, this gives improved load distribution when using sev-
eral stud type track rollers and also allows preloaded linear systems to be
easily realised.
✎ Highest point
of the eccentric collar
The highest point of the eccentric collar is indicated on the roller stud side,
the eccentricity e is stated in the product tables. This is also the location
of the radial relubrication holes, which should lie in the unloaded zone of
the rolling contact.
✎ Designs Series KRE..-PP has a cage, NUKRE and PWKRE..-2RS have a full
complement cylindrical roller set u1387|q12 to u1387|q14.
Bearings with a full complement cylindrical roller set have the largest
possible number of rolling elements and therefore have particularly high
load carrying capacity. Due to the kinematic conditions, however,
the speeds achievable with these bearings are somewhat lower than those
achievable with the cage-guided stud type track rollers.
Axial guidance of outer ring
✎ The type of guidance is
dependent on the series
In the series KRE..-PP, axial guidance is provided by the plastic axial
plain washers, contact flange and contact washers. In NUKRE, the outer
ring is guided axially by the rolling elements, in PWKRE axial guidance
of the outer ring is provided by the central rib and rolling elements.
q10
Stud type track roller
without eccentric collar,
full complement cylindrical
roller set, sealed on both sides
Fr = radial load
Fa = axial load
Labyrinth seals (NUKR)
000A7534000A7534
q11
Stud type track roller
without eccentric collar,
full complement cylindrical
roller set, with central rib,
sealed on both sides
Fr = radial load
Fa = axial load
Protected lip seals (PWKR..-2RS)
000A7538000A7538https://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1387
Bearing design
Optimised INA profile
✎ Advantages The advantages of the optimised INA profile are:
■ lower Hertzian pressure under tilting u1388|q15 and u1388|q16
■ higher basic rating life of the outer ring and mating track u1388|q17
■ reduced wear between the outer ring outside surface and the mating
track u1389|q18 and u1389|q19
■ increased rigidity in the outer ring contact u1389|q20.
Hertzian pressure curve
✎ Optimised INA profile,
profile R = 500,
cylindrical profile
The Hertzian pressure curve is more favourable for bearings with
an optimised INA profile than for bearings with a cylindrical profile or
with a profile where R = 500 mm (load Cr w /Pr = 5) u1388|q15.
q12
Stud type track roller
with eccentric collar, with cage,
sealed on both sides
Fr = radial load
Fa = axial load
Plastic axial plain washers
(KRE..-PP)
000A75A1000A75A1
q13
Stud type track roller
with eccentric collar,
full complement cylindrical
roller set, sealed on both sides
Fr = radial load
Fa = axial load
Labyrinth seals (NUKRE)
000A75AA000A75AA
q14
Stud type track roller
with eccentric collar,
full complement cylindrical
roller set, with central rib,
sealed on both sides
Fr = radial load
Fa = axial load
Protected lip seals
(PWKRE..-2RS)
000A75AE000A75AEhttps://www.schaeffler.de/std/1D65
Bearing design
Optimised INA profile
✎ Advantages The advantages of the optimised INA profile are:
■ lower Hertzian pressure under tilting u1388|q15 and u1388|q16
■ higher basic rating life of the outer ring and mating track u1388|q17
■ reduced wear between the outer ring outside surface and the mating
track u1389|q18 and u1389|q19
■ increased rigidity in the outer ring contact u1389|q20.
Hertzian pressure curve
✎ Optimised INA profile,
profile R = 500,
cylindrical profile
The Hertzian pressure curve is more favourable for bearings with
an optimised INA profile than for bearings with a cylindrical profile or
with a profile where R = 500 mm (load Cr w /Pr = 5) u1388|q15.
q12
Stud type track roller
with eccentric collar, with cage,
sealed on both sides
Fr = radial load
Fa = axial load
Plastic axial plain washers
(KRE..-PP)
000A75A1000A75A1
q13
Stud type track roller
with eccentric collar,
full complement cylindrical
roller set, sealed on both sides
Fr = radial load
Fa = axial load
Labyrinth seals (NUKRE)
000A75AA000A75AA
q14
Stud type track roller
with eccentric collar,
full complement cylindrical
roller set, with central rib,
sealed on both sides
Fr = radial load
Fa = axial load
Protected lip seals
(PWKRE..-2RS)
000A75AE000A75AEhttps://www.schaeffler.de/std/1D65
1388 HR 1
Bearing design
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
Maximum Hertzian pressure
✎ Reduced Hertzian pressure
with optimised INA profile
The maximum Hertzian pressure is significantly lower for bearings with
an optimised INA profile than for bearings with a cylindrical profile or
with the profile R = 500 mm u1388|q16.
Basic rating life of mating track
✎ Longer rating life
of mating track
The rating life of the mating track is significantly longer for outer rings with
an optimised INA profile than for bearings with the profile R = 500 mm
u1388|q17. Yoke type track rollers NUTR15 u1389|q18 were used
as comparative bearings.
Wear of the mating track
✎ Reduced wear
of the mating track
The mating track wears to a lesser extent with the optimised INA profile
u1389|q18: mating track made from EN-GJS-500-7, mean value
derived from several test runs after 360 000 overrolling motions.
q15
Hertzian pressure curve
Optimised INA profile
Profile R = 500
Cylindrical profile
Untilted running,
= 0 mrad
Tilted running,
= 3 mrad
000A3FDC000A3FDC
q16
Maximum Hertzian pressure,
stud type track roller NUKR80,
F r = 13 800 N (C r w /P r = 5)
pH = maximum Hertzian pressure
= tilt angle
Optimised INA profile
Profile R = 500
Cylindrical profile
000A3FE5000A3FE5
q17
Basic rating life of the mating
track, track made from 42CrMo4 V,
hardness 350 HV
L = basic rating life in millions
of overrolling motions
Fr = radial load
Optimised INA profile
Profile R = 500
000A3FEE000A3FEEhttps://www.schaeffler.de/std/1D65
Bearing design
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
Maximum Hertzian pressure
✎ Reduced Hertzian pressure
with optimised INA profile
The maximum Hertzian pressure is significantly lower for bearings with
an optimised INA profile than for bearings with a cylindrical profile or
with the profile R = 500 mm u1388|q16.
Basic rating life of mating track
✎ Longer rating life
of mating track
The rating life of the mating track is significantly longer for outer rings with
an optimised INA profile than for bearings with the profile R = 500 mm
u1388|q17. Yoke type track rollers NUTR15 u1389|q18 were used
as comparative bearings.
Wear of the mating track
✎ Reduced wear
of the mating track
The mating track wears to a lesser extent with the optimised INA profile
u1389|q18: mating track made from EN-GJS-500-7, mean value
derived from several test runs after 360 000 overrolling motions.
q15
Hertzian pressure curve
Optimised INA profile
Profile R = 500
Cylindrical profile
Untilted running,
= 0 mrad
Tilted running,
= 3 mrad
000A3FDC000A3FDC
q16
Maximum Hertzian pressure,
stud type track roller NUKR80,
F r = 13 800 N (C r w /P r = 5)
pH = maximum Hertzian pressure
= tilt angle
Optimised INA profile
Profile R = 500
Cylindrical profile
000A3FE5000A3FE5
q17
Basic rating life of the mating
track, track made from 42CrMo4 V,
hardness 350 HV
L = basic rating life in millions
of overrolling motions
Fr = radial load
Optimised INA profile
Profile R = 500
000A3FEE000A3FEEhttps://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1389
Bearing design
Mating track made from 58CrV4, mean value derived from several test runs
after 800 000 overrolling motions u1389|q19.
Rigidity in outer ring contact
✎ Radial deflection The radial deflection of the outer ring and rolling element set is smaller for
bearings with an optimised INA profile than for bearings with the profile
R = 500 mm u1389|q20. Example, yoke type track roller NUTR15.
Corrosion protection by Corrotect✎ A Corrotect coating is often
more economical than using
corrosion-resistant steels
Track rollers are often subjected to aggressive media. In such applications,
corrosion protection is therefore a decisive factor in achieving a long
operating life of the bearings. In principle, corrosion-resistant steels may
be used here. In many applications, however, the application of a special
coating using available Corrotect thin film coating technology is more
cost-effective and should therefore be queried in advance.
The series PWTR..-2RS-RR and PWKR(E)..-2RS-RR are therefore available
with a Corrotect coating. These bearings have the suffix RR u1398|1.12.
Other series are also available as a special design with high performance
Corrotect systems, which are matched to the specific application.
Before Corrotect-coated units are used, the compatibility of the coating
with the existing media should always be checked.
q18
Wear of the mating track,
track made from EN-GJS-500-7
sw = wear
Fr1 = low radial load
Fr2 = high radial load
Optimised INA profile
Profile R = 500
000A4040000A4040
q19
Wear of the mating track,
track made from 58CrV4
sw = wear
Fr1 = low radial load
Fr2 = high radial load
Optimised INA profile
Profile R = 500
000A3F63000A3F63
q20
Rigidity in outer ring contact
r = radial deflection
Fr = radial load
Optimised INA profile
Profile R = 500
000A4049000A4049https://www.schaeffler.de/std/1D65
Bearing design
Mating track made from 58CrV4, mean value derived from several test runs
after 800 000 overrolling motions u1389|q19.
Rigidity in outer ring contact
✎ Radial deflection The radial deflection of the outer ring and rolling element set is smaller for
bearings with an optimised INA profile than for bearings with the profile
R = 500 mm u1389|q20. Example, yoke type track roller NUTR15.
Corrosion protection by Corrotect✎ A Corrotect coating is often
more economical than using
corrosion-resistant steels
Track rollers are often subjected to aggressive media. In such applications,
corrosion protection is therefore a decisive factor in achieving a long
operating life of the bearings. In principle, corrosion-resistant steels may
be used here. In many applications, however, the application of a special
coating using available Corrotect thin film coating technology is more
cost-effective and should therefore be queried in advance.
The series PWTR..-2RS-RR and PWKR(E)..-2RS-RR are therefore available
with a Corrotect coating. These bearings have the suffix RR u1398|1.12.
Other series are also available as a special design with high performance
Corrotect systems, which are matched to the specific application.
Before Corrotect-coated units are used, the compatibility of the coating
with the existing media should always be checked.
q18
Wear of the mating track,
track made from EN-GJS-500-7
sw = wear
Fr1 = low radial load
Fr2 = high radial load
Optimised INA profile
Profile R = 500
000A4040000A4040
q19
Wear of the mating track,
track made from 58CrV4
sw = wear
Fr1 = low radial load
Fr2 = high radial load
Optimised INA profile
Profile R = 500
000A3F63000A3F63
q20
Rigidity in outer ring contact
r = radial deflection
Fr = radial load
Optimised INA profile
Profile R = 500
000A4049000A4049https://www.schaeffler.de/std/1D65
1390 HR 1
Load carrying capacity
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
Corrotect systems
✎ Corrotect coating
thicknesses
Corrotect methods are available which permit the application of
an extremely thin coating and, as a result, do not need to be included
in the bearing tolerance (0,5 m to 3 m or 2 m to 5 m).
Increased demands on corrosion protection can be fulfilled with increas-
ing coating thicknesses or completely different Corrotect methods.
In isolated cases, dimensional changes resulting from the coating must be
taken into account in a further processing step.
✎ Cr(VI)-free coatings The current Corrotect systems are all free from Cr(VI), protect effectively
against corrosion and, as a result, extend the useful life of the Schaeffler
components u1390|q21.
Further detailed information on the modular coating tool box and on the
individual coating systems can be found in Technical Product Information
ut TPI 186 “Higher Performance Capacity through the Use of Coatings”.
This publication can be requested from Schaeffler.
Fitting of Corrotect-coated bearings
✎ Take account
of larger tolerances
The tolerances are increased by the thickness of the coating. In order
to reduce the press-in forces, the surface of the parts should be lightly
greased for fitting.
1.2 Load carrying capacity
✎ Suitable for high radial
loads
The bearings can support high radial loads. Yoke or stud type track rollers
with axial guidance tolerate axial loads which are due to slight misalign-
ments, skewed running or temporary contact running impacts.
Installation as yoke or stud type track roller
✎ If used as a yoke and
stud type track roller,
the outer rings undergo
elastic deformation
If the yoke and stud type track rollers are used on a flat mating track,
the outer rings undergo elastic deformation. Compared with rolling bear-
ings supported in a housing bore, yoke and stud type track rollers
therefore have the following characteristics:
■ modified load distribution in the bearing.
This is taken into consideration by the effective basic load ratings C r w
and C0r w used in the calculation of the rating life.
■ bending stresses and reverse bending strengths in the outer ring.
These are taken into consideration by the permissible effective
radial loads Fr per and F0r per. The bending stresses and reverse bending
strengths must not exceed the permissible strength values of
the material.
q21
Uncoated and coated stud type
track roller in the salt spray test
000A4210000A4210https://www.schaeffler.de/std/1D65
Load carrying capacity
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
Corrotect systems
✎ Corrotect coating
thicknesses
Corrotect methods are available which permit the application of
an extremely thin coating and, as a result, do not need to be included
in the bearing tolerance (0,5 m to 3 m or 2 m to 5 m).
Increased demands on corrosion protection can be fulfilled with increas-
ing coating thicknesses or completely different Corrotect methods.
In isolated cases, dimensional changes resulting from the coating must be
taken into account in a further processing step.
✎ Cr(VI)-free coatings The current Corrotect systems are all free from Cr(VI), protect effectively
against corrosion and, as a result, extend the useful life of the Schaeffler
components u1390|q21.
Further detailed information on the modular coating tool box and on the
individual coating systems can be found in Technical Product Information
ut TPI 186 “Higher Performance Capacity through the Use of Coatings”.
This publication can be requested from Schaeffler.
Fitting of Corrotect-coated bearings
✎ Take account
of larger tolerances
The tolerances are increased by the thickness of the coating. In order
to reduce the press-in forces, the surface of the parts should be lightly
greased for fitting.
1.2 Load carrying capacity
✎ Suitable for high radial
loads
The bearings can support high radial loads. Yoke or stud type track rollers
with axial guidance tolerate axial loads which are due to slight misalign-
ments, skewed running or temporary contact running impacts.
Installation as yoke or stud type track roller
✎ If used as a yoke and
stud type track roller,
the outer rings undergo
elastic deformation
If the yoke and stud type track rollers are used on a flat mating track,
the outer rings undergo elastic deformation. Compared with rolling bear-
ings supported in a housing bore, yoke and stud type track rollers
therefore have the following characteristics:
■ modified load distribution in the bearing.
This is taken into consideration by the effective basic load ratings C r w
and C0r w used in the calculation of the rating life.
■ bending stresses and reverse bending strengths in the outer ring.
These are taken into consideration by the permissible effective
radial loads Fr per and F0r per. The bending stresses and reverse bending
strengths must not exceed the permissible strength values of
the material.
q21
Uncoated and coated stud type
track roller in the salt spray test
000A4210000A4210https://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1391
Angular misalignment
Permissible radial load under dynamic loading
✎ Cr w is valid For rotating bearings under dynamic load, the effective basic dynamic
load rating Cr w is used. Cr w is used to calculate the basic rating life.
The permissible dynamic radial load Fr per must not be exceeded. If a value
for Fr per is not given, the effective basic dynamic load rating Cr w is used
as a substitute. This basic load rating must also not be exceeded by the
radial load present. If the basic static load rating C0r w is lower than the
basic dynamic load rating Cr w , then C0r w applies.
Permissible radial load under static loading
✎ C0r w is valid For bearings under static load, either stationary or with only infrequent
rotary motion, the effective basic static load rating C0r w applies. C0r w is
used to calculate the static load safety factor S0 .
The permissible basic static radial load F0r per must not be exceeded.
If a value for F0r per is not given, the effective basic static load rating C0r w
is used as a substitute. This basic load rating must also not be exceeded
by the radial load present. In addition to the permissible radial load of
the bearing, the permissible radial load of the mating track must also
be taken into consideration u1404.
1.3 Angular misalignment
Skewed running✎ Additional axial load under
skewed running
Skewed running leads to additional axial load on the rolling bearing
and axial slippage in the rolling contact between the outer ring and mating
track u1391|q22. Depending on the skewed running angle and
the lubrication, wear can occur in these cases.
A complete loss of adhesive friction between the outer ring and raceway,
with correspondingly severe wear, is to be expected with a skewed running
angle 1,4 · 10–4 · p H (°) or 2,5 · 10–3 · p H (mrad).
Tilting
✎ Cylindrical outer ring If tilting occurs during running, increased edge stresses occur,
especially in yoke and stud type track rollers with cylindrical outer rings.
✎ Crowned outer ring Track rollers with a crowned outer ring are less sensitive to tilting and
should therefore be used in preference.
✎ Limits for tilting In practice, track rollers with a cylindrical outside surface and a tilting
angle of 0,1° (1,7 mrad) and for yoke and stud type track rollers
wth a crowned outside surface and a tilting angle of 0,25° (4,4 mrad)
have proved susceptible to damage u1392|q23.
q22
Skewed running
= skewed running angle
000A4052000A4052https://www.schaeffler.de/std/1D65
Angular misalignment
Permissible radial load under dynamic loading
✎ Cr w is valid For rotating bearings under dynamic load, the effective basic dynamic
load rating Cr w is used. Cr w is used to calculate the basic rating life.
The permissible dynamic radial load Fr per must not be exceeded. If a value
for Fr per is not given, the effective basic dynamic load rating Cr w is used
as a substitute. This basic load rating must also not be exceeded by the
radial load present. If the basic static load rating C0r w is lower than the
basic dynamic load rating Cr w , then C0r w applies.
Permissible radial load under static loading
✎ C0r w is valid For bearings under static load, either stationary or with only infrequent
rotary motion, the effective basic static load rating C0r w applies. C0r w is
used to calculate the static load safety factor S0 .
The permissible basic static radial load F0r per must not be exceeded.
If a value for F0r per is not given, the effective basic static load rating C0r w
is used as a substitute. This basic load rating must also not be exceeded
by the radial load present. In addition to the permissible radial load of
the bearing, the permissible radial load of the mating track must also
be taken into consideration u1404.
1.3 Angular misalignment
Skewed running✎ Additional axial load under
skewed running
Skewed running leads to additional axial load on the rolling bearing
and axial slippage in the rolling contact between the outer ring and mating
track u1391|q22. Depending on the skewed running angle and
the lubrication, wear can occur in these cases.
A complete loss of adhesive friction between the outer ring and raceway,
with correspondingly severe wear, is to be expected with a skewed running
angle 1,4 · 10–4 · p H (°) or 2,5 · 10–3 · p H (mrad).
Tilting
✎ Cylindrical outer ring If tilting occurs during running, increased edge stresses occur,
especially in yoke and stud type track rollers with cylindrical outer rings.
✎ Crowned outer ring Track rollers with a crowned outer ring are less sensitive to tilting and
should therefore be used in preference.
✎ Limits for tilting In practice, track rollers with a cylindrical outside surface and a tilting
angle of 0,1° (1,7 mrad) and for yoke and stud type track rollers
wth a crowned outside surface and a tilting angle of 0,25° (4,4 mrad)
have proved susceptible to damage u1392|q23.
q22
Skewed running
= skewed running angle
000A4052000A4052https://www.schaeffler.de/std/1D65
1392 HR 1
Lubrication
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
1.4 Lubrication
Two contact zones
✎ Lubricate the rolling
elements, rolling element
raceway and mating track
Two contact zones must be lubricated and considered separately:
■ the rolling elements and rolling element raceway
■ the outside surface of the track roller and the mating track.
The contact zone between the rolling elements and the rolling element
raceway is covered in the chapter Technical principles, Lubrication.
Lubrication of the bearing
✎ Greased with a lubricating
grease to GA08
For yoke and stud type track rollers, a lithium complex soap grease
with a mineral oil base and EP additives to GA08 is used. Yoke type track
rollers can be lubricated via the inner ring, stud type track rollers have
a type-dependent relubrication facility via the roller stud.
Greases for initial greasing are listed in the chapter Lubrication u90|e6.
For relubrication, greases in accordance with u1392|e1 are suitable.
In stud type track rollers with an eccentric collar, the eccentric collar covers
the radial lubrication hole in the shank. Relubrication must therefore be
carried out via the end faces.
e1
Arcanol rolling bearing greases
for relubrication
Lubrication of mating track
✎ Suitable lubricants For lubrication of the mating track, all lubricants suitable for rolling
bearing lubrication may be used. However, there are applications in which
the mating track must not be lubricated.
If the contact point cannot be lubricated, wear must be expected,
especially under high loads and at high speeds.
✎ Oil lubrication For oil lubrication, oils of type CLP to DIN 51517 are recommended.
✎ Grease lubrication For grease lubrication, lithium soap greases to DIN 51825 should be used.
Relubrication intervals can only be determined under operating con-
ditions. Relubrication must be carried out at the latest when fretting
corrosion first occurs; this can be identified by a reddish discolouration
of the mating track or the outer ring.
✎ Solid lubricants and
anti-friction coatings
These substances are also suitable for lubrication. At high traverse
or rotational speeds, however, they provide effective lubrication for
a significantly shorter period than oil or grease lubrication.
q23
Tilting
= tilt angle
000A40AB000A40AB
Arcanol
grease
Designation
to DIN 51825
Type of grease Track roller
L OAD150 KP2N–20 Lithium soap grease
with mineral oil base
Yoke and stud type
roller bearing track rollers
L OAD220 KP2N–20 Lithium calcium soap grease
with mineral oil base
Yoke and stud type
roller bearing track rollers
MULTI3 KP3K–30 Lithium soap grease
with mineral oil base
Yoke and stud type
ball bearing track rollershttps://www.schaeffler.de/std/1D65
Lubrication
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
1.4 Lubrication
Two contact zones
✎ Lubricate the rolling
elements, rolling element
raceway and mating track
Two contact zones must be lubricated and considered separately:
■ the rolling elements and rolling element raceway
■ the outside surface of the track roller and the mating track.
The contact zone between the rolling elements and the rolling element
raceway is covered in the chapter Technical principles, Lubrication.
Lubrication of the bearing
✎ Greased with a lubricating
grease to GA08
For yoke and stud type track rollers, a lithium complex soap grease
with a mineral oil base and EP additives to GA08 is used. Yoke type track
rollers can be lubricated via the inner ring, stud type track rollers have
a type-dependent relubrication facility via the roller stud.
Greases for initial greasing are listed in the chapter Lubrication u90|e6.
For relubrication, greases in accordance with u1392|e1 are suitable.
In stud type track rollers with an eccentric collar, the eccentric collar covers
the radial lubrication hole in the shank. Relubrication must therefore be
carried out via the end faces.
e1
Arcanol rolling bearing greases
for relubrication
Lubrication of mating track
✎ Suitable lubricants For lubrication of the mating track, all lubricants suitable for rolling
bearing lubrication may be used. However, there are applications in which
the mating track must not be lubricated.
If the contact point cannot be lubricated, wear must be expected,
especially under high loads and at high speeds.
✎ Oil lubrication For oil lubrication, oils of type CLP to DIN 51517 are recommended.
✎ Grease lubrication For grease lubrication, lithium soap greases to DIN 51825 should be used.
Relubrication intervals can only be determined under operating con-
ditions. Relubrication must be carried out at the latest when fretting
corrosion first occurs; this can be identified by a reddish discolouration
of the mating track or the outer ring.
✎ Solid lubricants and
anti-friction coatings
These substances are also suitable for lubrication. At high traverse
or rotational speeds, however, they provide effective lubrication for
a significantly shorter period than oil or grease lubrication.
q23
Tilting
= tilt angle
000A40AB000A40AB
Arcanol
grease
Designation
to DIN 51825
Type of grease Track roller
L OAD150 KP2N–20 Lithium soap grease
with mineral oil base
Yoke and stud type
roller bearing track rollers
L OAD220 KP2N–20 Lithium calcium soap grease
with mineral oil base
Yoke and stud type
roller bearing track rollers
MULTI3 KP3K–30 Lithium soap grease
with mineral oil base
Yoke and stud type
ball bearing track rollershttps://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1393
Lubrication
Central lubrication system for stud type track rollers
✎ Connection adapter with
rapid-fit connection cartridge
If a central lubrication system is to be used, a patented central lubrication
adapter can be used to connect the standard roller stud of stud type track
rollers with hexagonal sockets on both sides u1393|q24.
This connector comprises a connection adapter with a hexagonal end and
a rapid-fit connection cartridge.
The connection adapter is connected to the roller stud on one end
of the stud type track roller by replacing the funnel type lubrication nipple
with the fitting cylinder. The hexagonal end prevents rotation of
the adapter. The other end of the stud type track roller is closed off using
the supplied funnel type lubrication nipple u1393|q24.
✎ Hard PA pipes should be
used in preference
The connection adapter has an M101 internal thread. This is used
for screw mounting and sealing of the rapid-fit connection cartridge.
The cartridge gives firm retention and sealing of the plastic pipe.
It is therefore not necessary to screw the pipe and adapter onto each other.
Hard PA pipes should be used in preference. In this instance, the operating
limits according to DIN 73378 and the manufacturer's guidance must
be observed. The maximum excess pressure for pipes made from PA11 or
PA12 is as follows at +23 °C: 31 bar to 62 bar. The maximum excess
pressure when using other screw-in connectors is 80 bar.
✎ Dimensions For dimensions of the adapters u1393|e2 and u1394|q25.
e2
Dimensions of adapter
q24
Central lubrication adapter and
funnel type lubrication nipple
Connection adapter
with M10
1 internal thread
Rapid-fit connection cartridge
Fitting cylinder
Funnel type lubrication nipple
000A410C000A410C
Central
lubrication adapter
Dimensions
W L l 1 l 2 l3 For polyamide pipe
to DIN 73378
Designation max. approx. d 1snom
AP8 8 27 16 22 4 40,75
AP10 10 27 15 22 5 40,75
AP14 14 25 8 20 6 40,75https://www.schaeffler.de/std/1D65
Lubrication
Central lubrication system for stud type track rollers
✎ Connection adapter with
rapid-fit connection cartridge
If a central lubrication system is to be used, a patented central lubrication
adapter can be used to connect the standard roller stud of stud type track
rollers with hexagonal sockets on both sides u1393|q24.
This connector comprises a connection adapter with a hexagonal end and
a rapid-fit connection cartridge.
The connection adapter is connected to the roller stud on one end
of the stud type track roller by replacing the funnel type lubrication nipple
with the fitting cylinder. The hexagonal end prevents rotation of
the adapter. The other end of the stud type track roller is closed off using
the supplied funnel type lubrication nipple u1393|q24.
✎ Hard PA pipes should be
used in preference
The connection adapter has an M101 internal thread. This is used
for screw mounting and sealing of the rapid-fit connection cartridge.
The cartridge gives firm retention and sealing of the plastic pipe.
It is therefore not necessary to screw the pipe and adapter onto each other.
Hard PA pipes should be used in preference. In this instance, the operating
limits according to DIN 73378 and the manufacturer's guidance must
be observed. The maximum excess pressure for pipes made from PA11 or
PA12 is as follows at +23 °C: 31 bar to 62 bar. The maximum excess
pressure when using other screw-in connectors is 80 bar.
✎ Dimensions For dimensions of the adapters u1393|e2 and u1394|q25.
e2
Dimensions of adapter
q24
Central lubrication adapter and
funnel type lubrication nipple
Connection adapter
with M10
1 internal thread
Rapid-fit connection cartridge
Fitting cylinder
Funnel type lubrication nipple
000A410C000A410C
Central
lubrication adapter
Dimensions
W L l 1 l 2 l3 For polyamide pipe
to DIN 73378
Designation max. approx. d 1snom
AP8 8 27 16 22 4 40,75
AP10 10 27 15 22 5 40,75
AP14 14 25 8 20 6 40,75https://www.schaeffler.de/std/1D65
1394 HR 1
Lubrication
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
Calculation of relubrication intervals
✎ Simplified determination
of lubrication impulses
The relubrication quantities for central lubrication using flowable grease
and their conversion to the number of relubrication impulses for conven-
tional metering nipple sizes are given in the table u1394|e3. The data
are valid for EP additives, for a lithium soap flowable grease with a mineral
oil base ISO VG 100 to ISO VG 220 or NLGI 00 or NLGI 000.
Relubrication periods
✎ Approximate definition The approximate definition of the relubrication periods for single shift
operation and the majority of applications is shown in u1394|e4 and
u1395|e5. The data are valid for single shift operation; the relubrication
quantity and relubrication intervals are valid for the majority of appli-
cations. They are based on approximate calculation of the relubrication
interval tfR . For definition of the relubrication interval see chapter
Relubrication u70|6.1. Within these periods, the number of relubrication
impulses determined in accordance with u1394|e3 should be evenly
distributed.
e4
Relubrication period
for calculating
the relubrication intervals
q25
Dimensions
of central lubrication adapters
000A4115000A4115
e3
Relubrication quantities
for stud type track rollers
1) For stud type track rollers
with hexagonal socket
on both sides.
2) Relubrication quantity and
relubrication intervals for
central lubrication using
flowable grease for the majority
of applications.
Note the quantity required to
fill the feed lines.
Series1) Outside
diameter
Central
lubrication
adapter
Relubri-
cation
quantity2)
Relubrication impulses
for metering nipple of size
D Designation 30 mm3 50 mm3
mm g
from up to
NUKR, NUKRE 35 40 AP8 1,1 40 24
47 52 AP10 2,4 89 53
62 90 AP14 7,3 271 163
KR, KRE 35 40 AP8 1,2 44 27
47 52 AP10 1,6 60 36
62 90 AP14 6 222 133
KRV, KRVE 35 40 AP8 0,7 26 16
47 52 AP10 1 37 22
62 90 AP14 3,2 120 72
Load ratio
C0r w/Pr
Maximum operating speed
nmax in % of nD G
10 25 50 100
5 C0r w/Pr 3 1/2 yearly – – –
10 C0r w/Pr 5 yearly 4 months monthly –
C0r w/Pr 10 yearly 8 months 2 months 14 dayshttps://www.schaeffler.de/std/1D65
Lubrication
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
Calculation of relubrication intervals
✎ Simplified determination
of lubrication impulses
The relubrication quantities for central lubrication using flowable grease
and their conversion to the number of relubrication impulses for conven-
tional metering nipple sizes are given in the table u1394|e3. The data
are valid for EP additives, for a lithium soap flowable grease with a mineral
oil base ISO VG 100 to ISO VG 220 or NLGI 00 or NLGI 000.
Relubrication periods
✎ Approximate definition The approximate definition of the relubrication periods for single shift
operation and the majority of applications is shown in u1394|e4 and
u1395|e5. The data are valid for single shift operation; the relubrication
quantity and relubrication intervals are valid for the majority of appli-
cations. They are based on approximate calculation of the relubrication
interval tfR . For definition of the relubrication interval see chapter
Relubrication u70|6.1. Within these periods, the number of relubrication
impulses determined in accordance with u1394|e3 should be evenly
distributed.
e4
Relubrication period
for calculating
the relubrication intervals
q25
Dimensions
of central lubrication adapters
000A4115000A4115
e3
Relubrication quantities
for stud type track rollers
1) For stud type track rollers
with hexagonal socket
on both sides.
2) Relubrication quantity and
relubrication intervals for
central lubrication using
flowable grease for the majority
of applications.
Note the quantity required to
fill the feed lines.
Series1) Outside
diameter
Central
lubrication
adapter
Relubri-
cation
quantity2)
Relubrication impulses
for metering nipple of size
D Designation 30 mm3 50 mm3
mm g
from up to
NUKR, NUKRE 35 40 AP8 1,1 40 24
47 52 AP10 2,4 89 53
62 90 AP14 7,3 271 163
KR, KRE 35 40 AP8 1,2 44 27
47 52 AP10 1,6 60 36
62 90 AP14 6 222 133
KRV, KRVE 35 40 AP8 0,7 26 16
47 52 AP10 1 37 22
62 90 AP14 3,2 120 72
Load ratio
C0r w/Pr
Maximum operating speed
nmax in % of nD G
10 25 50 100
5 C0r w/Pr 3 1/2 yearly – – –
10 C0r w/Pr 5 yearly 4 months monthly –
C0r w/Pr 10 yearly 8 months 2 months 14 dayshttps://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1395
Sealing
e5
Periods in single shift operation
Fitting of central lubrication adapter
✎ Mount the stud type
track roller first
The stud type track roller must be mounted before fitting the adapter.
The unused lubrication hole in the roller stud must be closed off using the
funnel type lubrication nipple supplied. Only the lubrication nipples
supplied should be used.
✎ Guidelines for mounting
of the adapter
The central lubrication adapter should preferably be pressed in using
a manual lever press under low, uniform pressure or carefully driven into
the unused hexagonal socket of the roller stud by means of light blows
with a plastic hammer; pay attention to the press-in depth l3
and the position of the hexagon u1394|q25 and u1393|e2.
✎ Fitting of the polyamide
pipe
The plastic pipe must be cut off straight across and inserted into
the cartridge until it stops. Only polyamide pipes to DIN 73378 should
be used. Check the seating of the pipe. Note maximum pressures,
maximum temperatures and minimum bending radius. The maximum pipe
length up to the distributor is 1 m.
1.5 Sealing
Yoke type track rollers
✎ Available in open or
sealed designs
Yoke type track rollers are available in open designs and with non-contact
or contact type seals u1395|e6.
e6
Seals used in yoke type
track rollers
e6
Seals used in yoke type
track rollers
Stud type track rollers
✎ Available with seals
on both sides
Stud type track rollers are sealed on both sides. Depending on the series,
non-contact or contact type seals are used. A three-stage seal, comprising
plastic axial plain washers with formed seal lips, is also used on both
sides of the bearing u1396|e7.
Months Weeks Working days Working hours
1/2 2 10 80
1 4 20 160
2 8 40 320
4 16 80 640
6 24 120 960
8 32 160 1 280
12 48 240 1 920
Yoke type track roller Seal
STO Open
RSTO
RNA22..-2RSR Lip seal on both sides
NA22..-2RSR
PWTR..-2RS Protected lip seal on both sides
continued ▼
Yoke type track roller Seal
NATR..-PP Three-stage sealing on both sides plastic axial plain washers
NATV..-PP
NATR Gap seal on both sides
NATV
NUTR Labyrinth seal on both sides
NNTR..-2ZL Contact washer with lamellar ring on both sides
continued ▲https://www.schaeffler.de/std/1D65
Sealing
e5
Periods in single shift operation
Fitting of central lubrication adapter
✎ Mount the stud type
track roller first
The stud type track roller must be mounted before fitting the adapter.
The unused lubrication hole in the roller stud must be closed off using the
funnel type lubrication nipple supplied. Only the lubrication nipples
supplied should be used.
✎ Guidelines for mounting
of the adapter
The central lubrication adapter should preferably be pressed in using
a manual lever press under low, uniform pressure or carefully driven into
the unused hexagonal socket of the roller stud by means of light blows
with a plastic hammer; pay attention to the press-in depth l3
and the position of the hexagon u1394|q25 and u1393|e2.
✎ Fitting of the polyamide
pipe
The plastic pipe must be cut off straight across and inserted into
the cartridge until it stops. Only polyamide pipes to DIN 73378 should
be used. Check the seating of the pipe. Note maximum pressures,
maximum temperatures and minimum bending radius. The maximum pipe
length up to the distributor is 1 m.
1.5 Sealing
Yoke type track rollers
✎ Available in open or
sealed designs
Yoke type track rollers are available in open designs and with non-contact
or contact type seals u1395|e6.
e6
Seals used in yoke type
track rollers
e6
Seals used in yoke type
track rollers
Stud type track rollers
✎ Available with seals
on both sides
Stud type track rollers are sealed on both sides. Depending on the series,
non-contact or contact type seals are used. A three-stage seal, comprising
plastic axial plain washers with formed seal lips, is also used on both
sides of the bearing u1396|e7.
Months Weeks Working days Working hours
1/2 2 10 80
1 4 20 160
2 8 40 320
4 16 80 640
6 24 120 960
8 32 160 1 280
12 48 240 1 920
Yoke type track roller Seal
STO Open
RSTO
RNA22..-2RSR Lip seal on both sides
NA22..-2RSR
PWTR..-2RS Protected lip seal on both sides
continued ▼
Yoke type track roller Seal
NATR..-PP Three-stage sealing on both sides plastic axial plain washers
NATV..-PP
NATR Gap seal on both sides
NATV
NUTR Labyrinth seal on both sides
NNTR..-2ZL Contact washer with lamellar ring on both sides
continued ▲https://www.schaeffler.de/std/1D65
1396 HR 1
Speeds
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
e7
Seals used in stud type
track rollers
Three-stage seal
✎ Seal design In the three-stage concept, there is a gap seal between the plastic axial
plain washer and the outer ring, as well as a labyrinth seal between
the formed seal lip and an undercut in the outer ring. The disc spring shape
of the axial plain washer gives a preloaded contact seal as the third stage.
It also provides axial sliding contact between the outer ring and contact
washers, thus reducing friction and grease consumption.
1.6 Speeds
✎ Speeds nD G The maximum possible speed is essentially determined by the permissible
operating temperature of the yoke and stud type track rollers.
The speed thus depends on the type of bearing, the load, the lubrication
conditions and the cooling conditions.
Speeds with lip seals
The speed of track rollers with lip seals is additionally restricted
by the permissible sliding speed at the seal lip.
Speed during continuous operation
✎ Criteria for guide values The speeds n D G in the product tables are guide values. They were
determined for:
■ grease lubrication
■ loads during continuous operation of 0,05 · C0r w
■ skewed running angles of 0,03° ( 0,5 mrad)
■ an ambient temperature of +20 °C
■ outer ring temperatures of +70 °C
■ lubricated mating tracks
■ no external axial load.
✎ Reducing the speed The speeds must be reduced under the following conditions:
■ loads 0,05 · C0r w
■ additional axial forces (skewed running)
■ insufficient heat dissipation.
✎ Higher speeds Higher speeds can be achieved with intermittent operation and
oil impulse lubrication.
1.7 Noise
Schaeffler Noise Index
The Schaeffler Noise Index (SGI) is not yet available for this bearing
type u69. The data for these bearing series will be introduced and
updated in stages.
Further information:
■ medias uhttps://medias.schaeffler.com.
Stud type track roller Seal
KR Gap seal on both sides
KR..-PP Three-stage sealing on both sides by plastic axial plain
washersKRE..-PP
KRV..-PP
NUKR Labyrinth seal on both sides
NUKRE
PWKR..-2RS Protected lip seal on both sides
PWKRE..-2RShttps://www.schaeffler.de/std/1D65
Speeds
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
e7
Seals used in stud type
track rollers
Three-stage seal
✎ Seal design In the three-stage concept, there is a gap seal between the plastic axial
plain washer and the outer ring, as well as a labyrinth seal between
the formed seal lip and an undercut in the outer ring. The disc spring shape
of the axial plain washer gives a preloaded contact seal as the third stage.
It also provides axial sliding contact between the outer ring and contact
washers, thus reducing friction and grease consumption.
1.6 Speeds
✎ Speeds nD G The maximum possible speed is essentially determined by the permissible
operating temperature of the yoke and stud type track rollers.
The speed thus depends on the type of bearing, the load, the lubrication
conditions and the cooling conditions.
Speeds with lip seals
The speed of track rollers with lip seals is additionally restricted
by the permissible sliding speed at the seal lip.
Speed during continuous operation
✎ Criteria for guide values The speeds n D G in the product tables are guide values. They were
determined for:
■ grease lubrication
■ loads during continuous operation of 0,05 · C0r w
■ skewed running angles of 0,03° ( 0,5 mrad)
■ an ambient temperature of +20 °C
■ outer ring temperatures of +70 °C
■ lubricated mating tracks
■ no external axial load.
✎ Reducing the speed The speeds must be reduced under the following conditions:
■ loads 0,05 · C0r w
■ additional axial forces (skewed running)
■ insufficient heat dissipation.
✎ Higher speeds Higher speeds can be achieved with intermittent operation and
oil impulse lubrication.
1.7 Noise
Schaeffler Noise Index
The Schaeffler Noise Index (SGI) is not yet available for this bearing
type u69. The data for these bearing series will be introduced and
updated in stages.
Further information:
■ medias uhttps://medias.schaeffler.com.
Stud type track roller Seal
KR Gap seal on both sides
KR..-PP Three-stage sealing on both sides by plastic axial plain
washersKRE..-PP
KRV..-PP
NUKR Labyrinth seal on both sides
NUKRE
PWKR..-2RS Protected lip seal on both sides
PWKRE..-2RShttps://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1397
Cages
1.8 Temperature range
✎ Limiting values The operating temperature of the yoke and stud type track rollers is limited
by:
■ the dimensional stability of the bearing rings and rolling elements
■ the cage
■ the lubricant
■ the seals.
e8
Permissible temperature ranges
Note the information on the operating temperature range in the chapter
Technical principles, Lubrication.
In the event of anticipated temperatures which lie outside the stated
values, please contact Schaeffler.
1.9 Cages
Yoke type track rollers
Yoke type track rollers without inner ring
✎ With cage Yoke type track rollers RSTO and RNA22..-2RSR have a sheet steel cage as
standard. Yoke type track rollers RSTO up to D = 24 mm have a plastic cage
made from polyamide PA66 (suffix TV). Series RSTO does not have axial
guidance of the needle roller and cage assembly and of the outer ring.
As a result, lateral guidance is required.
Yoke type track rollers with inner ring✎ With cage, with full comp-
lement needle roller or
cylindrical roller set
The series STO, NA22..-2RSR, NATR and NATR..-PP have a sheet steel cage
as standard. Yoke type track rollers STO up to D = 24 mm have a plastic
cage made from polyamide PA66 (suffix TV). The series NATV and
NATV..-PP have a full complement needle roller set, while yoke type track
rollers NUTR, PWTR..-2RS and NNTR..-2ZL have a full complement
cylindrical roller set. Series STO does not have axial guidance of the
needle roller and cage assembly and of the outer ring. As a result, lateral
guidance is required.
Stud type track rollers
Stud type track rollers without eccentric collar✎ With cage, with full comp-
lement needle roller or
cylindrical roller set
Stud type track rollers KR and KR..-PP have a sheet steel cage, the design
KRV..-PP has a full complement needle roller set. The series NUKR and
PWKR..-2RS have a full complement cylindrical roller set.
✎ Axial guidance
of outer ring
In KR, axial guidance is provided directly by the contact flange and contact
washer, while in KR..-PP and KRV..-PP this is provided by plastic axial plain
washers, the contact flange and contact washer. In NUKR, the outer ring is
guided axially by the rolling elements, in PWKR, axial guidance of the outer
ring is provided by the central rib and rolling elements.
Stud type track rollers with eccentric collar
✎ With cage or full comp-
lement cylindrical roller set
Series KRE..-PP has a sheet steel cage, NUKRE and PWKRE..-2RS have
a full complement cylindrical roller set.
✎ Axial guidance
of outer ring
In KRE..-PP, axial guidance is provided by the plastic axial plain washers,
contact flange and contact washer. In NUKRE, the outer ring is guided
axially by the rolling elements, in PWKRE, axial guidance of the outer ring
is provided by the central rib and rolling elements.
Operating
tempera-
ture
Yoke and stud type track rollers
Open or with
gap seal or
labyrinth seal
With
lip seals
With
plastic cages
With
three-stage seal
2RS, 2RSR TV PP
from to from to from to from to
°C
–30 +140 –30 +120 –30 +120 –30 +100https://www.schaeffler.de/std/1D65
Cages
1.8 Temperature range
✎ Limiting values The operating temperature of the yoke and stud type track rollers is limited
by:
■ the dimensional stability of the bearing rings and rolling elements
■ the cage
■ the lubricant
■ the seals.
e8
Permissible temperature ranges
Note the information on the operating temperature range in the chapter
Technical principles, Lubrication.
In the event of anticipated temperatures which lie outside the stated
values, please contact Schaeffler.
1.9 Cages
Yoke type track rollers
Yoke type track rollers without inner ring
✎ With cage Yoke type track rollers RSTO and RNA22..-2RSR have a sheet steel cage as
standard. Yoke type track rollers RSTO up to D = 24 mm have a plastic cage
made from polyamide PA66 (suffix TV). Series RSTO does not have axial
guidance of the needle roller and cage assembly and of the outer ring.
As a result, lateral guidance is required.
Yoke type track rollers with inner ring✎ With cage, with full comp-
lement needle roller or
cylindrical roller set
The series STO, NA22..-2RSR, NATR and NATR..-PP have a sheet steel cage
as standard. Yoke type track rollers STO up to D = 24 mm have a plastic
cage made from polyamide PA66 (suffix TV). The series NATV and
NATV..-PP have a full complement needle roller set, while yoke type track
rollers NUTR, PWTR..-2RS and NNTR..-2ZL have a full complement
cylindrical roller set. Series STO does not have axial guidance of the
needle roller and cage assembly and of the outer ring. As a result, lateral
guidance is required.
Stud type track rollers
Stud type track rollers without eccentric collar✎ With cage, with full comp-
lement needle roller or
cylindrical roller set
Stud type track rollers KR and KR..-PP have a sheet steel cage, the design
KRV..-PP has a full complement needle roller set. The series NUKR and
PWKR..-2RS have a full complement cylindrical roller set.
✎ Axial guidance
of outer ring
In KR, axial guidance is provided directly by the contact flange and contact
washer, while in KR..-PP and KRV..-PP this is provided by plastic axial plain
washers, the contact flange and contact washer. In NUKR, the outer ring is
guided axially by the rolling elements, in PWKR, axial guidance of the outer
ring is provided by the central rib and rolling elements.
Stud type track rollers with eccentric collar
✎ With cage or full comp-
lement cylindrical roller set
Series KRE..-PP has a sheet steel cage, NUKRE and PWKRE..-2RS have
a full complement cylindrical roller set.
✎ Axial guidance
of outer ring
In KRE..-PP, axial guidance is provided by the plastic axial plain washers,
contact flange and contact washer. In NUKRE, the outer ring is guided
axially by the rolling elements, in PWKRE, axial guidance of the outer ring
is provided by the central rib and rolling elements.
Operating
tempera-
ture
Yoke and stud type track rollers
Open or with
gap seal or
labyrinth seal
With
lip seals
With
plastic cages
With
three-stage seal
2RS, 2RSR TV PP
from to from to from to from to
°C
–30 +140 –30 +120 –30 +120 –30 +100https://www.schaeffler.de/std/1D65
1398 HR 1
Internal clearance
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
1.10 Internal clearance
Radial internal clearance
✎ Standard corresponds
approximately to C2 or CN
The radial internal bearing clearance of yoke and stud type track rollers
corresponds approximately to tolerance class C2 (Group 2) and,
in the case of STO and NA22..-2RSR, to tolerance class CN (Group N).
Values u1398|e9.
The values for radial internal clearance correspond to DIN 620-4:2004
(ISO 5753-1:2009). These are valid for bearings which are free from load
and measurement forces (without elastic deformation).
e9
Radial internal clearance
for yoke and stud type track rollers
1.11 Dimensions, tolerances
Tolerances
The dimensional and running tolerances correspond to the tolerance class
Normal in accordance with ISO 492, for KR, KRE and KRV to ISO 7063.
✎ Deviations from ISO 492 The following deviations from ISO 492 apply:
■ the diameter deviations of the profiled outside surface 0/–0,05 mm
■ for NNTR, the diameter tolerance class h10
■ for NATR, NATV, NUTR, PWTR..-2RS, the tolerance class h12 for width B
■ for NATR, NATV, the roundness of the inner ring
■ for stud type track rollers, the tolerance class of the shank diameter h7
and the eccentric collar diameter h9.
✎ Tolerances
for Corrotect-coated bearings
For PWTR..-2RS-RR and PWKR..-2RS-RR , the tolerances are increased
by the thickness of the Corrotect special coating.
Enveloping circle
✎ Yoke type track rollers
without inner ring
For yoke type track rollers without an inner ring, RSTO and RNA22..-2RSR,
the needle enveloping circle Fw is in the tolerance class F6. The enveloping
circle is the inner inscribed circle of the needle rollers in clearance-free
contact with the adjacent construction.
1.12 Suffixes
For a description of the suffixes used in this chapter u1399|e10 and
medias interchange uhttps://www.schaeffler.de/std/1D52.
Nominal
bore diameter
Radial internal clearance
d C2
(Group 2)
CN
(Group N)
C3
(Group 3)
C4
(Group 4)
mm m m m m
over incl. min. max. min. max. min. max. min. max.
– 24 0 25 20 45 35 60 50 75
24 30 0 25 20 45 35 60 50 75
30 40 5 30 25 50 45 70 60 85
40 50 5 35 30 60 50 80 70 100
50 65 10 40 40 70 60 90 80 110
65 80 10 45 40 75 65 100 90 125
80 100 15 50 50 85 75 110 105 140
100 120 15 55 50 90 85 125 125 165
120 140 15 60 60 105 100 145 145 190https://www.schaeffler.de/std/1D65
Internal clearance
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
1.10 Internal clearance
Radial internal clearance
✎ Standard corresponds
approximately to C2 or CN
The radial internal bearing clearance of yoke and stud type track rollers
corresponds approximately to tolerance class C2 (Group 2) and,
in the case of STO and NA22..-2RSR, to tolerance class CN (Group N).
Values u1398|e9.
The values for radial internal clearance correspond to DIN 620-4:2004
(ISO 5753-1:2009). These are valid for bearings which are free from load
and measurement forces (without elastic deformation).
e9
Radial internal clearance
for yoke and stud type track rollers
1.11 Dimensions, tolerances
Tolerances
The dimensional and running tolerances correspond to the tolerance class
Normal in accordance with ISO 492, for KR, KRE and KRV to ISO 7063.
✎ Deviations from ISO 492 The following deviations from ISO 492 apply:
■ the diameter deviations of the profiled outside surface 0/–0,05 mm
■ for NNTR, the diameter tolerance class h10
■ for NATR, NATV, NUTR, PWTR..-2RS, the tolerance class h12 for width B
■ for NATR, NATV, the roundness of the inner ring
■ for stud type track rollers, the tolerance class of the shank diameter h7
and the eccentric collar diameter h9.
✎ Tolerances
for Corrotect-coated bearings
For PWTR..-2RS-RR and PWKR..-2RS-RR , the tolerances are increased
by the thickness of the Corrotect special coating.
Enveloping circle
✎ Yoke type track rollers
without inner ring
For yoke type track rollers without an inner ring, RSTO and RNA22..-2RSR,
the needle enveloping circle Fw is in the tolerance class F6. The enveloping
circle is the inner inscribed circle of the needle rollers in clearance-free
contact with the adjacent construction.
1.12 Suffixes
For a description of the suffixes used in this chapter u1399|e10 and
medias interchange uhttps://www.schaeffler.de/std/1D52.
Nominal
bore diameter
Radial internal clearance
d C2
(Group 2)
CN
(Group N)
C3
(Group 3)
C4
(Group 4)
mm m m m m
over incl. min. max. min. max. min. max. min. max.
– 24 0 25 20 45 35 60 50 75
24 30 0 25 20 45 35 60 50 75
30 40 5 30 25 50 45 70 60 85
40 50 5 35 30 60 50 80 70 100
50 65 10 40 40 70 60 90 80 110
65 80 10 45 40 75 65 100 90 125
80 100 15 50 50 85 75 110 105 140
100 120 15 55 50 90 85 125 125 165
120 140 15 60 60 105 100 145 145 190https://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1399
Structure of bearing designation
e10
Suffixes and
corresponding descriptions
1.13 Structure of bearing designation✎ Examples of composition
of bearing designation
The designation of bearings follows a set model. Examples u1399|q26
to u1399|q29.
Suffix Description of suffix
PP Plastic axial plain washer with formed seal lip on both
sides of the bearing, giving a three-stage seal
Standard
RR Protected against corrosion by Corrotect special coating
in the case of PWTR..-2RS and PWKR(E)..-2RS
SK Hexagonal socket only on the flange-side end face,
no relubrication facility
TV Plastic cage
XL X-life design
2RS Protected lip seal on both sides
2RSR Radial contact lip seal on both sides
2ZL Contact washer with lamellar ring on both sides
q26
Yoke type track roller, single row,
without inner ring, without seal,
without axial guidance,
open design, plastic cage,
R = 500: designation structure
000B1132000B1132
q27
Yoke type track roller, double row,
with inner ring, sealed,
with axial guidance,
optimised INA profile:
designation structure
000B113B000B113B
q28
Stud type needle roller bearing
track roller, full complement
needle roller set, with axial
guidance, three-stage seal,
optimised INA profile:
designation structure
000B1144000B1144
q29
Stud type cylindrical roller bearing
track roller, full complement
cylindrical roller set, with axial
guidance, X-life design,
optimised INA profile:
designation structure
000B114D000B114Dhttps://www.schaeffler.de/std/1D65
Structure of bearing designation
e10
Suffixes and
corresponding descriptions
1.13 Structure of bearing designation✎ Examples of composition
of bearing designation
The designation of bearings follows a set model. Examples u1399|q26
to u1399|q29.
Suffix Description of suffix
PP Plastic axial plain washer with formed seal lip on both
sides of the bearing, giving a three-stage seal
Standard
RR Protected against corrosion by Corrotect special coating
in the case of PWTR..-2RS and PWKR(E)..-2RS
SK Hexagonal socket only on the flange-side end face,
no relubrication facility
TV Plastic cage
XL X-life design
2RS Protected lip seal on both sides
2RSR Radial contact lip seal on both sides
2ZL Contact washer with lamellar ring on both sides
q26
Yoke type track roller, single row,
without inner ring, without seal,
without axial guidance,
open design, plastic cage,
R = 500: designation structure
000B1132000B1132
q27
Yoke type track roller, double row,
with inner ring, sealed,
with axial guidance,
optimised INA profile:
designation structure
000B113B000B113B
q28
Stud type needle roller bearing
track roller, full complement
needle roller set, with axial
guidance, three-stage seal,
optimised INA profile:
designation structure
000B1144000B1144
q29
Stud type cylindrical roller bearing
track roller, full complement
cylindrical roller set, with axial
guidance, X-life design,
optimised INA profile:
designation structure
000B114D000B114Dhttps://www.schaeffler.de/std/1D65
1400 HR 1
Dimensioning
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
1.14 Dimensioning
✎ Calculation
of the rating life
The methods for calculating the rating life are:
■ the basic rating life to DIN ISO 281
■ the adjusted basic rating life to DIN ISO 281
■ the expanded calculation of the adjusted reference rating life
to DIN ISO 281-4.
✎ Use effective basic
dynamic/static load ratings
These methods are described in the chapter Load carrying capacity
and life. For yoke and stud type track rollers, use the following values
(values u1416|r):
■ for C r, the effective basic dynamic load rating C r w
■ for C 0r , the effective basic static load rating C 0r w
■ for C ur , the effective fatigue limit load C ur w.
✎ Other rating life equations Other equations for calculating the rating life u1400|w1, u1400|w2
and u1400|w3.
Legend Ls 105 m Basic rating life in 105 m
Lh h Basic rating life in operating hours
Cr w N Effective basic dynamic load rating. Cr w is that load of constant
magnitude and direction which a sufficiently large group
of apparently identical track rollers can endure for a basic rating
life of one million revolutions
P r N Equivalent dynamic bearing load (radial load)
p – Life exponent:
p = 3 for yoke or stud type track rollers based on balls
p = 10/3 for yoke and stud type track rollers based on needle or
cylindrical rollers
n min –1 Operating speed
D mm Outside diameter of track roller
H m Single stroke length for oscillating motion
n osc min –1 Number of return strokes per minute
v m/min Mean travel velocity.
Operating life
✎ Life actually achieved The operating life is defined as the life actually achieved by a yoke
type track roller, stud type track roller or ball bearing track roller.
This can deviate significantly from the calculated basic rating life.
w1
Basic rating life
w2
Basic rating life
in oscillating operation
w3
Basic rating lifehttps://www.schaeffler.de/std/1D65
Dimensioning
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
1.14 Dimensioning
✎ Calculation
of the rating life
The methods for calculating the rating life are:
■ the basic rating life to DIN ISO 281
■ the adjusted basic rating life to DIN ISO 281
■ the expanded calculation of the adjusted reference rating life
to DIN ISO 281-4.
✎ Use effective basic
dynamic/static load ratings
These methods are described in the chapter Load carrying capacity
and life. For yoke and stud type track rollers, use the following values
(values u1416|r):
■ for C r, the effective basic dynamic load rating C r w
■ for C 0r , the effective basic static load rating C 0r w
■ for C ur , the effective fatigue limit load C ur w.
✎ Other rating life equations Other equations for calculating the rating life u1400|w1, u1400|w2
and u1400|w3.
Legend Ls 105 m Basic rating life in 105 m
Lh h Basic rating life in operating hours
Cr w N Effective basic dynamic load rating. Cr w is that load of constant
magnitude and direction which a sufficiently large group
of apparently identical track rollers can endure for a basic rating
life of one million revolutions
P r N Equivalent dynamic bearing load (radial load)
p – Life exponent:
p = 3 for yoke or stud type track rollers based on balls
p = 10/3 for yoke and stud type track rollers based on needle or
cylindrical rollers
n min –1 Operating speed
D mm Outside diameter of track roller
H m Single stroke length for oscillating motion
n osc min –1 Number of return strokes per minute
v m/min Mean travel velocity.
Operating life
✎ Life actually achieved The operating life is defined as the life actually achieved by a yoke
type track roller, stud type track roller or ball bearing track roller.
This can deviate significantly from the calculated basic rating life.
w1
Basic rating life
w2
Basic rating life
in oscillating operation
w3
Basic rating lifehttps://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1401
Dimensioning
✎ Cause of deviations Possible causes of a deviation between the basic rating life and
the operating life are wear or fatigue as a result of:
■ deviations in the operating data
■ misalignment between the track roller and mating track
■ insufficient or excessive operating clearance
■ contamination of the track roller
■ inadequate lubrication
■ excessive operating temperature
■ oscillating bearing motion with very small swivel angles,
leading to false brinelling
■ wear between the outer ring outside surface and mating track
■ high vibration and false brinelling
■ very high shock loads, static overloading
■ prior damage during mounting.
Due to the variety of mounting and operating conditions, the operating life
cannot be precisely calculated in advance. The most reliable way of
arriving at a close estimate is by comparison with similar applications.
Static load safety factor
✎ S0 = C0r w/F 0r In addition to the basic rating life L, it is also always necessary to check
the static load safety factor S0 u1401|w4.
Legend S0 – Static load safety factor
C0r w N Effective radial basic static load rating in accordance
with product table
F0r N Maximum static radial load on track roller.
Track rollers are regarded as heavily loaded at a static load safety factor
of S0 8. Static load safety factors of S0 1 cause plastic deformation
of the rolling elements and the raceways, which can impair smooth
running. This is only permissible for bearings with small rotary motions or
in secondary applications.
If an application has a static load safety factor of S0 2, please consult
Schaeffler.
Frictional torque
✎ Calculation only possible
in approximate terms
The frictional torque MR of a yoke type, stud type or ball bearing track roller
depends on many influencing factors such as load, speed and type, as well
as the lubrication conditions and seal friction. Due to the wide range
of these influencing factors, the frictional torque can only be calculated
approximately.
For designs without contact seals, the frictional torque can be calculated
under normal operating conditions and moderate speed range in
accordance with u1401|w5.
Legend M R Nmm Frictional torque of track roller
f – Coefficient of friction u1402|e11 and u1402|e12
Fr N Radial load
dM mm Mean bearing diameter of track roller (d + D)/2.
w4
Static load safety factor
w5
Frictional torquehttps://www.schaeffler.de/std/1D65
Dimensioning
✎ Cause of deviations Possible causes of a deviation between the basic rating life and
the operating life are wear or fatigue as a result of:
■ deviations in the operating data
■ misalignment between the track roller and mating track
■ insufficient or excessive operating clearance
■ contamination of the track roller
■ inadequate lubrication
■ excessive operating temperature
■ oscillating bearing motion with very small swivel angles,
leading to false brinelling
■ wear between the outer ring outside surface and mating track
■ high vibration and false brinelling
■ very high shock loads, static overloading
■ prior damage during mounting.
Due to the variety of mounting and operating conditions, the operating life
cannot be precisely calculated in advance. The most reliable way of
arriving at a close estimate is by comparison with similar applications.
Static load safety factor
✎ S0 = C0r w/F 0r In addition to the basic rating life L, it is also always necessary to check
the static load safety factor S0 u1401|w4.
Legend S0 – Static load safety factor
C0r w N Effective radial basic static load rating in accordance
with product table
F0r N Maximum static radial load on track roller.
Track rollers are regarded as heavily loaded at a static load safety factor
of S0 8. Static load safety factors of S0 1 cause plastic deformation
of the rolling elements and the raceways, which can impair smooth
running. This is only permissible for bearings with small rotary motions or
in secondary applications.
If an application has a static load safety factor of S0 2, please consult
Schaeffler.
Frictional torque
✎ Calculation only possible
in approximate terms
The frictional torque MR of a yoke type, stud type or ball bearing track roller
depends on many influencing factors such as load, speed and type, as well
as the lubrication conditions and seal friction. Due to the wide range
of these influencing factors, the frictional torque can only be calculated
approximately.
For designs without contact seals, the frictional torque can be calculated
under normal operating conditions and moderate speed range in
accordance with u1401|w5.
Legend M R Nmm Frictional torque of track roller
f – Coefficient of friction u1402|e11 and u1402|e12
Fr N Radial load
dM mm Mean bearing diameter of track roller (d + D)/2.
w4
Static load safety factor
w5
Frictional torquehttps://www.schaeffler.de/std/1D65
1402 HR 1
Minimum load
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
e11
Coefficient of friction
for yoke and stud type track rollers
e12
Coefficient of friction
for track rollers✎ Validity
of coefficients of friction
The stated factors f are valid for yoke type, stud type and ball bearing track
rollers, which are unsealed or have a contact seal and are subjected to
radial load. If sealed designs are used, higher coefficients of friction must
be expected.
✎ Influence
of additional axial forces
Additional axial forces, such as those occurring under large skewed run-
ning angles, can lead to a substantial increase in the values, especially in
the case of track rollers based on needle rollers. Track rollers based on ball
bearings can support axial loads without a significant change in friction.
Displacement resistance
When an outer ring rolls on a track, it must overcome not only the friction
within the bearing but also the rolling friction between the outer ring
and the mating track. The displacement resistance is determined from
the rolling friction and the frictional torque MR in accordance with
u1402|w6.
Legend Fv N Displacement resistance
fR mm Coefficient of rolling friction for tracks made from hardened steel:
f R = 0,05 mm
Fr N Radial load
M R Nmm Frictional torque
D mm Outside diameter of track roller.
1.15 Minimum load
✎ Minimum load
C 0r w/Fr
60
In order to ensure that the outer ring is driven, that no slippage occurs
and that the track roller does not lift from the mating track, the track roller
must be subjected to a minimum load in dynamic operation. In general,
the minimum load is calculated using the ratio C0r w /Fr 60.
1.16 Design of bearing arrangements
Adjacent construction for yoke type track rollers
✎ Yoke type track rollers
without inner ring,
raceway design
For yoke type track rollers without an inner ring, the rolling element
raceway on the shaft or stud must be hardened and ground u1402|e13.
The surface hardness must be 670 HV to 840 HV, the hardening
depths CHD or SHD must be sufficiently large.
e13
Tolerances and surface design
Type Coefficient of friction
f
Cylindrical roller bearing, full complement 0,002 to 0,003
Needle roller bearing, with cage 0,003 to 0,004
Needle roller bearing, full complement 0,005 to 0,007
Type Coefficient of friction
f
Ball bearing, single row 0,0015 to 0,002
Ball bearing, double row 0,002 to 0,003
w6
Displacement resistance
Diameter tolerance of shafts or studs Roughness Roundness
tolerance
Parallelism
tolerance
Without inner ring With inner ring max. max.
k5 e g6 e
(with point load)
Ramax 0,4
(Rzmax 2)
25% of
diameter
tolerance
50% of
diameter
tolerancehttps://www.schaeffler.de/std/1D65
Minimum load
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
e11
Coefficient of friction
for yoke and stud type track rollers
e12
Coefficient of friction
for track rollers✎ Validity
of coefficients of friction
The stated factors f are valid for yoke type, stud type and ball bearing track
rollers, which are unsealed or have a contact seal and are subjected to
radial load. If sealed designs are used, higher coefficients of friction must
be expected.
✎ Influence
of additional axial forces
Additional axial forces, such as those occurring under large skewed run-
ning angles, can lead to a substantial increase in the values, especially in
the case of track rollers based on needle rollers. Track rollers based on ball
bearings can support axial loads without a significant change in friction.
Displacement resistance
When an outer ring rolls on a track, it must overcome not only the friction
within the bearing but also the rolling friction between the outer ring
and the mating track. The displacement resistance is determined from
the rolling friction and the frictional torque MR in accordance with
u1402|w6.
Legend Fv N Displacement resistance
fR mm Coefficient of rolling friction for tracks made from hardened steel:
f R = 0,05 mm
Fr N Radial load
M R Nmm Frictional torque
D mm Outside diameter of track roller.
1.15 Minimum load
✎ Minimum load
C 0r w/Fr
60
In order to ensure that the outer ring is driven, that no slippage occurs
and that the track roller does not lift from the mating track, the track roller
must be subjected to a minimum load in dynamic operation. In general,
the minimum load is calculated using the ratio C0r w /Fr 60.
1.16 Design of bearing arrangements
Adjacent construction for yoke type track rollers
✎ Yoke type track rollers
without inner ring,
raceway design
For yoke type track rollers without an inner ring, the rolling element
raceway on the shaft or stud must be hardened and ground u1402|e13.
The surface hardness must be 670 HV to 840 HV, the hardening
depths CHD or SHD must be sufficiently large.
e13
Tolerances and surface design
Type Coefficient of friction
f
Cylindrical roller bearing, full complement 0,002 to 0,003
Needle roller bearing, with cage 0,003 to 0,004
Needle roller bearing, full complement 0,005 to 0,007
Type Coefficient of friction
f
Ball bearing, single row 0,0015 to 0,002
Ball bearing, double row 0,002 to 0,003
w6
Displacement resistance
Diameter tolerance of shafts or studs Roughness Roundness
tolerance
Parallelism
tolerance
Without inner ring With inner ring max. max.
k5 e g6 e
(with point load)
Ramax 0,4
(Rzmax 2)
25% of
diameter
tolerance
50% of
diameter
tolerancehttps://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1403
Design of bearing arrangements
Location of yoke type track rollers without axial guidance
For yoke type track rollers without axial guidance, the outer ring and
needle roller and cage assembly must be laterally guided u1403|q30.
The contact surfaces for the outer rings must be precision machined,
wear-resistant and lubricated (Ramax 2 recommended).✎ Bearing parts must not be
interchanged with parts from
other bearings during fitting
Yoke type track rollers without axial guidance are not self-retaining.
The outer ring and the needle roller and cage assembly are matched to
each other and must not be interchanged during mounting with compo-
nents from other bearings of the same size. The inner rings are matched
to the enveloping circle tolerance class F6 and can be interchanged within
their accuracy class (used in different combinations).
Location of yoke type track rollers with axial guidance
✎ Observe dimension d2 Yoke type track rollers with axial guidance must be axially clamped in
place. The thrust washers must be axially supported if axial loads occur.
The dimension d2 in the product tables must be observed u1403|q31.
✎ Location by snap ring Yoke type track rollers NATR and NATV can be located using conventional
fasteners such as snap rings u1403|q31.
✎ Firmly locate inner ring and
thrust rings axially
For yoke type track rollers NNTR..-2ZL, NUTR and PWTR..-2RS, the inner ring
and thrust rings must be located axially u1403|q32.
q30
Lateral guidance of outer ring and
needle roller and cage assembly
RSTO
000A75BC000A75BC
q31
Location by snap ring
d2 = abutment diameter
NATR
Snap ring
000A4127000A4127
q32
Clamping of inner ring and
thrust rings
PWTR..-2RS
000A75C5000A75C5https://www.schaeffler.de/std/1D65
Design of bearing arrangements
Location of yoke type track rollers without axial guidance
For yoke type track rollers without axial guidance, the outer ring and
needle roller and cage assembly must be laterally guided u1403|q30.
The contact surfaces for the outer rings must be precision machined,
wear-resistant and lubricated (Ramax 2 recommended).✎ Bearing parts must not be
interchanged with parts from
other bearings during fitting
Yoke type track rollers without axial guidance are not self-retaining.
The outer ring and the needle roller and cage assembly are matched to
each other and must not be interchanged during mounting with compo-
nents from other bearings of the same size. The inner rings are matched
to the enveloping circle tolerance class F6 and can be interchanged within
their accuracy class (used in different combinations).
Location of yoke type track rollers with axial guidance
✎ Observe dimension d2 Yoke type track rollers with axial guidance must be axially clamped in
place. The thrust washers must be axially supported if axial loads occur.
The dimension d2 in the product tables must be observed u1403|q31.
✎ Location by snap ring Yoke type track rollers NATR and NATV can be located using conventional
fasteners such as snap rings u1403|q31.
✎ Firmly locate inner ring and
thrust rings axially
For yoke type track rollers NNTR..-2ZL, NUTR and PWTR..-2RS, the inner ring
and thrust rings must be located axially u1403|q32.
q30
Lateral guidance of outer ring and
needle roller and cage assembly
RSTO
000A75BC000A75BC
q31
Location by snap ring
d2 = abutment diameter
NATR
Snap ring
000A4127000A4127
q32
Clamping of inner ring and
thrust rings
PWTR..-2RS
000A75C5000A75C5https://www.schaeffler.de/std/1D65
1404 HR 1
Design of bearing arrangements
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
Adjacent construction for stud type track rollers
✎ Bore tolerance H7 The bore tolerance H7 produces a clearance fit since the stud tolerance is
h7 for studs without eccentric collar and h9 for studs with eccentric collar.
✎ Design
of locating surfaces
The locating surfaces for stud type track rollers must be flat, perpendicular
and of sufficient height. The strength of the nut locating surface must be
sufficiently high. The dimension must not be less than the dimension d2
in the product tables.
✎ Lead chamfer The lead chamfer on the locating bore must not be more than 0,545°.
Axial location
✎ Axial location Stud type track rollers must be axially secured using a hexagon nut.
The nuts of grade 8 to ISO 4032 (M6, M8), ISO 8673, are not included
in the delivery and must be ordered separately.
If heavy vibration occurs, the stud type track rollers can be located using
self-locking nuts in accordance with DIN 985 or special locking washers.
For self-locking nuts, a higher tightening torque must be observed;
the advice given by the nut manufacturer must be followed.
Position of lubrication hole
✎ Ensure that the lubrication
hole is positioned correctly
The position of the radial lubrication hole is indicated on the flanged side
of the roller stud u1404|q33. This must not be positioned in the loaded
zone.
Design of mating track
✎ Take account
of Hertzian pressure
In the design of the mating track (material and strength, heat treatment,
surface), the Hertzian pressure pH must be taken into consideration.
This is dependent on the load, the contact geometry (point contact or line
contact) and the modulus of elasticity of the materials.
✎ Nomogram
for determining
the Hertzian pressure
The Hertzian pressure can be read from the nomogram and calculated
u1406|q35. The nomogram is valid for mating tracks made from steel.
For other materials, the correction factor k must be taken into
consideration u1407|e15.
✎ Additional conditions Other conditions:
■ point contact
■ radius of curvature R = 500. For radii R 500 and the optimised
INA profile, correction values must be calculated u1407|w10
■ mating track flat in the direction of the track roller axis
■ signs according to u1405|q34.
q33
Position of lubrication hole
NUKR
Marking (position of radial
lubrication hole)
000A413A000A413Ahttps://www.schaeffler.de/std/1D65
Design of bearing arrangements
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
Adjacent construction for stud type track rollers
✎ Bore tolerance H7 The bore tolerance H7 produces a clearance fit since the stud tolerance is
h7 for studs without eccentric collar and h9 for studs with eccentric collar.
✎ Design
of locating surfaces
The locating surfaces for stud type track rollers must be flat, perpendicular
and of sufficient height. The strength of the nut locating surface must be
sufficiently high. The dimension must not be less than the dimension d2
in the product tables.
✎ Lead chamfer The lead chamfer on the locating bore must not be more than 0,545°.
Axial location
✎ Axial location Stud type track rollers must be axially secured using a hexagon nut.
The nuts of grade 8 to ISO 4032 (M6, M8), ISO 8673, are not included
in the delivery and must be ordered separately.
If heavy vibration occurs, the stud type track rollers can be located using
self-locking nuts in accordance with DIN 985 or special locking washers.
For self-locking nuts, a higher tightening torque must be observed;
the advice given by the nut manufacturer must be followed.
Position of lubrication hole
✎ Ensure that the lubrication
hole is positioned correctly
The position of the radial lubrication hole is indicated on the flanged side
of the roller stud u1404|q33. This must not be positioned in the loaded
zone.
Design of mating track
✎ Take account
of Hertzian pressure
In the design of the mating track (material and strength, heat treatment,
surface), the Hertzian pressure pH must be taken into consideration.
This is dependent on the load, the contact geometry (point contact or line
contact) and the modulus of elasticity of the materials.
✎ Nomogram
for determining
the Hertzian pressure
The Hertzian pressure can be read from the nomogram and calculated
u1406|q35. The nomogram is valid for mating tracks made from steel.
For other materials, the correction factor k must be taken into
consideration u1407|e15.
✎ Additional conditions Other conditions:
■ point contact
■ radius of curvature R = 500. For radii R 500 and the optimised
INA profile, correction values must be calculated u1407|w10
■ mating track flat in the direction of the track roller axis
■ signs according to u1405|q34.
q33
Position of lubrication hole
NUKR
Marking (position of radial
lubrication hole)
000A413A000A413Ahttps://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1405
Design of bearing arrangements
Example
✎ NUKR35 ■ stud type track roller NUKR35 with optimised INA profile
■ D = 35 mm
■ outer ring width C = 18 mm
■ radial load F r = 2 500 N
■ cam plate, radius rL = 80 mm.
Curvature sum
✎ Calculating
the curvature sum
The curvature sum is calculated from the raceway radius rL and
the diameter D of the track roller u1405|w7.
q34
Raceway radii and signs
D = outside diameter
of track roller
rL = raceway radius
000A4155000A4155
w7
Curvature sum
pH500 = 1 250 N/mm 2
w8
Hertzian pressure
= 1 250 N/mm2 · 0,85
= 1 063 N/mm2
(1 025 N/mm2 from calculation program BEARINX),
kpH u1406|e14.https://www.schaeffler.de/std/1D65
Design of bearing arrangements
Example
✎ NUKR35 ■ stud type track roller NUKR35 with optimised INA profile
■ D = 35 mm
■ outer ring width C = 18 mm
■ radial load F r = 2 500 N
■ cam plate, radius rL = 80 mm.
Curvature sum
✎ Calculating
the curvature sum
The curvature sum is calculated from the raceway radius rL and
the diameter D of the track roller u1405|w7.
q34
Raceway radii and signs
D = outside diameter
of track roller
rL = raceway radius
000A4155000A4155
w7
Curvature sum
pH500 = 1 250 N/mm 2
w8
Hertzian pressure
= 1 250 N/mm2 · 0,85
= 1 063 N/mm2
(1 025 N/mm2 from calculation program BEARINX),
kpH u1406|e14.https://www.schaeffler.de/std/1D65
1406 HR 1
Design of bearing arrangements
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
✎ Track rollers
with optimised INA profile
For an outer ring with the optimised INA profile, the following calculation
provides sufficiently precise values u1406|w9 and u1406|e14.
e14
Pressure factor kpH
q35 Nomogram for determining Hertzian pressure, calculation example (purple)
000A415E000A415E
w9
Optimised INA profile
Outer ring width Pressure factor
C k pH
mm
10 C 15 1
15 C 20 0,85
20 C 30 0,83
30 C 35 0,8https://www.schaeffler.de/std/1D65
Design of bearing arrangements
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
✎ Track rollers
with optimised INA profile
For an outer ring with the optimised INA profile, the following calculation
provides sufficiently precise values u1406|w9 and u1406|e14.
e14
Pressure factor kpH
q35 Nomogram for determining Hertzian pressure, calculation example (purple)
000A415E000A415E
w9
Optimised INA profile
Outer ring width Pressure factor
C k pH
mm
10 C 15 1
15 C 20 0,85
20 C 30 0,83
30 C 35 0,8https://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1407
Design of bearing arrangements
Radius of curvature R 500 mm
If the outer ring has a radius of curvature of R 500 mm, u1407|w10.
Materials for mating track
✎ High load
on the mating track
The mating track is subjected to high load during overrolling.
This produces high Hertzian contact pressures. The strength and
surface hardness of the material must be matched to this load.
✎ Correction factors For raceways subjected to high loads, through hardened steels, case hard-
ened steels and steels for flame or induction hardening are rec-
ommended. For raceways subjected to low loads, construction steels and
cast steel or cast iron materials can be used u1407|w11 u1407|e15.
e15
Correction factor k
Guide values for permissible Hertzian pressure
✎ Selection by material The table u1408|e16 gives a selection of materials with the associated
values. The values were determined on steel test specimens; load cycles
of 10 7 were achieved.
On a similar basis to the calculation of the load carrying capacity of rolling
bearings, this gives:
■ pH stat for predominantly static load
■ pH dyn for predominantly dynamic load.
w10
R
500 mm
w11
Correction
for mating track material
Material Material no. Correction factor for mating track with
k
for point contact for line contact
EN-GJL-200 0.6020 0,74 0,8
EN-GJL-300 0.6030 0,81 0,85
GG-40 – 0,85 0,88
EN-GJS-400-15 0.7040 0,92 0,94
EN-GJS-600-3 0.7060 0,94 0,96
EN-GJS-800-2 0.7080 0,96 0,97https://www.schaeffler.de/std/1D65
Design of bearing arrangements
Radius of curvature R 500 mm
If the outer ring has a radius of curvature of R 500 mm, u1407|w10.
Materials for mating track
✎ High load
on the mating track
The mating track is subjected to high load during overrolling.
This produces high Hertzian contact pressures. The strength and
surface hardness of the material must be matched to this load.
✎ Correction factors For raceways subjected to high loads, through hardened steels, case hard-
ened steels and steels for flame or induction hardening are rec-
ommended. For raceways subjected to low loads, construction steels and
cast steel or cast iron materials can be used u1407|w11 u1407|e15.
e15
Correction factor k
Guide values for permissible Hertzian pressure
✎ Selection by material The table u1408|e16 gives a selection of materials with the associated
values. The values were determined on steel test specimens; load cycles
of 10 7 were achieved.
On a similar basis to the calculation of the load carrying capacity of rolling
bearings, this gives:
■ pH stat for predominantly static load
■ pH dyn for predominantly dynamic load.
w10
R
500 mm
w11
Correction
for mating track material
Material Material no. Correction factor for mating track with
k
for point contact for line contact
EN-GJL-200 0.6020 0,74 0,8
EN-GJL-300 0.6030 0,81 0,85
GG-40 – 0,85 0,88
EN-GJS-400-15 0.7040 0,92 0,94
EN-GJS-600-3 0.7060 0,94 0,96
EN-GJS-800-2 0.7080 0,96 0,97https://www.schaeffler.de/std/1D65
1408 HR 1
Design of bearing arrangements
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
Hardenable materials
✎ Suitable steels The following materials with a purity level corresponding to that of alloyed
construction steels may be used:
■ through hardening steels to ISO 683-17, such as 100Cr6.
In special cases, surface hardening is possible.
■ case hardening steels to ISO 683-17, such as 17MnCr5, or in accord-
ance with EN 10084, such as 16MnCr5. Both the hardenability and
the core strength must be taken into consideration. For case hardening,
a fine grained hardening structure and a case hardening depth CHD
in accordance with u1409|w12 is necessary.
■ steels for flame or induction hardening to ISO 683-17, such as C56E2,
or to DIN 17212, such as Cf53. For flame or induction hardening,
only the parts of the machine component used as raceways must be
hardened. The material should be quenched and tempered before
hardening. The surface hardening depth SHD is determined in
accordance with u1409|w13.
e16
Materials and guide values
for permissible Hertzian pressure
(selection)
1) Case hardened.
2) Induction surface layer
hardening.
3) Proof stress of the core.
Material Material designation Material no. Hertzian
pressure
Proof
stress of
material
new old pH stat p H dyn Rp0,2
N/mm2 N/mm 2 N/mm2
Flake
graphite
cast iron
EN-GJL-150 GG-15 EN-JL1020 0.6015 850 340 120
EN-GJL-200 GG-20 EN-JL1030 0.6020 1 050 420 150
EN-GJL-250 GG-25 EN-JL1040 0.6025 1 200 480 190
EN-GJL-300 GG-30 EN-JL1050 0.6030 1 350 540 220
EN-GJL-350 GG-35 EN-JL1060 0.6035 1 450 580 250
GG-40 – 1 500 600 280
Spheroidal
graphite
cast iron
EN-GJS-400-15 GGG-40 EN-JS1030 0.7040 1 000 490 250
EN-GJS-500-7 GGG-50 EN-JS1050 0.7050 1 150 560 320
EN-GJS-600-3 GGG-60 EN-JS1060 0.7060 1 400 680 380
EN-GJS-700-2 GGG-70 EN-JS1070 0.7070 1 550 750 440
EN-GJS-800-2 GGG-80 EN-JS1080 0.7080 1 650 800 500
Cast steel GE200 GS-38 1.0420 780 380 200
GE240 GS-45 1.0446 920 450 230
GS-52 1.0552 1 050 510 260
GE300 GS-60 1.0558 1 250 600 300
GS-62 – 1 300 630 350
GS-70 – 1 450 700 420
Construc-
tion steel
S235JR St 37-2 1.0037 690 340 235
S275JR St 44-2 1.0044 860 420 275
S355J2G3+N St 52-3 1.0570 980 480 355
Quenched
and tem-
pered steel
C45 V 1.0503 1 400 670 500
Cf53 V 1.1213 1 450 710 520
Cf56 V – 1 550 760 550
C60 V 1.0601 1 600 780 580
46Cr2 V 1.7006 1 750 850 650
42CrMo4 V 1.7225 2 000 980 900
50CrV4 V 1.8159 2 000 980 900
Hardened
steel and
with tem-
pering at
low tem-
peratures
100Cr6 H 1.3505 4 000 1 500 1 900
16MnCr5 1) 1.7131 4 000 1 500 770 3)
Cf53 2) 1.1213 4 000 1 500 730 3)
Cf56 2) – 4 000 1 500 760 3)https://www.schaeffler.de/std/1D65
Design of bearing arrangements
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
Hardenable materials
✎ Suitable steels The following materials with a purity level corresponding to that of alloyed
construction steels may be used:
■ through hardening steels to ISO 683-17, such as 100Cr6.
In special cases, surface hardening is possible.
■ case hardening steels to ISO 683-17, such as 17MnCr5, or in accord-
ance with EN 10084, such as 16MnCr5. Both the hardenability and
the core strength must be taken into consideration. For case hardening,
a fine grained hardening structure and a case hardening depth CHD
in accordance with u1409|w12 is necessary.
■ steels for flame or induction hardening to ISO 683-17, such as C56E2,
or to DIN 17212, such as Cf53. For flame or induction hardening,
only the parts of the machine component used as raceways must be
hardened. The material should be quenched and tempered before
hardening. The surface hardening depth SHD is determined in
accordance with u1409|w13.
e16
Materials and guide values
for permissible Hertzian pressure
(selection)
1) Case hardened.
2) Induction surface layer
hardening.
3) Proof stress of the core.
Material Material designation Material no. Hertzian
pressure
Proof
stress of
material
new old pH stat p H dyn Rp0,2
N/mm2 N/mm 2 N/mm2
Flake
graphite
cast iron
EN-GJL-150 GG-15 EN-JL1020 0.6015 850 340 120
EN-GJL-200 GG-20 EN-JL1030 0.6020 1 050 420 150
EN-GJL-250 GG-25 EN-JL1040 0.6025 1 200 480 190
EN-GJL-300 GG-30 EN-JL1050 0.6030 1 350 540 220
EN-GJL-350 GG-35 EN-JL1060 0.6035 1 450 580 250
GG-40 – 1 500 600 280
Spheroidal
graphite
cast iron
EN-GJS-400-15 GGG-40 EN-JS1030 0.7040 1 000 490 250
EN-GJS-500-7 GGG-50 EN-JS1050 0.7050 1 150 560 320
EN-GJS-600-3 GGG-60 EN-JS1060 0.7060 1 400 680 380
EN-GJS-700-2 GGG-70 EN-JS1070 0.7070 1 550 750 440
EN-GJS-800-2 GGG-80 EN-JS1080 0.7080 1 650 800 500
Cast steel GE200 GS-38 1.0420 780 380 200
GE240 GS-45 1.0446 920 450 230
GS-52 1.0552 1 050 510 260
GE300 GS-60 1.0558 1 250 600 300
GS-62 – 1 300 630 350
GS-70 – 1 450 700 420
Construc-
tion steel
S235JR St 37-2 1.0037 690 340 235
S275JR St 44-2 1.0044 860 420 275
S355J2G3+N St 52-3 1.0570 980 480 355
Quenched
and tem-
pered steel
C45 V 1.0503 1 400 670 500
Cf53 V 1.1213 1 450 710 520
Cf56 V – 1 550 760 550
C60 V 1.0601 1 600 780 580
46Cr2 V 1.7006 1 750 850 650
42CrMo4 V 1.7225 2 000 980 900
50CrV4 V 1.8159 2 000 980 900
Hardened
steel and
with tem-
pering at
low tem-
peratures
100Cr6 H 1.3505 4 000 1 500 1 900
16MnCr5 1) 1.7131 4 000 1 500 770 3)
Cf53 2) 1.1213 4 000 1 500 730 3)
Cf56 2) – 4 000 1 500 760 3)https://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1409
Design of bearing arrangements
Heat treatment of the mating track
✎ Specifications
for heat treatment
The following apply for hardened mating tracks:
■ a surface hardness of 670 HV to 840 HV
■ CHD and SHD according to u1409|w12 and u1409|w13 –
in accordance with DIN 50190, the depth of the hardened surface
zone at which there is still a hardness of 550 HV
■ hardness curves according to u1409|q36 and u1409|q37
■ a hardening depth of 0,3 mm.
The equations are based on the hardness curves normally achieved
with skilled heat treatment.
Case hardening
Flame and induction hardening
Legend pH N/mm2 Max. Hertzian pressure
CHD mm Case hardening depth
SHD mm Surface hardening depth
D mm Outside diameter of track roller
R p0,2 N/mm2 Proof stress of mating track material u1408|e16
r L mm Radius of mating track – the raceway must be flat in the direction
of the yoke type track roller axis u1405|q34.
w12
Case hardening depth
w13
Surface hardening depth
q36
Case hardening depth CHD,
hardness curve
CHD = case hardening depth
with hardness 550 HV
HV = hardness
z = distance from surface
Required hardness
Case hardening
000A4171000A4171
q37
Surface hardening depth SHD,
hardness curve
SHD = surface hardening depth
HV = hardness
z = distance from surface
Required hardness
Flame or induction hardening
000A417D000A417Dhttps://www.schaeffler.de/std/1D65
Design of bearing arrangements
Heat treatment of the mating track
✎ Specifications
for heat treatment
The following apply for hardened mating tracks:
■ a surface hardness of 670 HV to 840 HV
■ CHD and SHD according to u1409|w12 and u1409|w13 –
in accordance with DIN 50190, the depth of the hardened surface
zone at which there is still a hardness of 550 HV
■ hardness curves according to u1409|q36 and u1409|q37
■ a hardening depth of 0,3 mm.
The equations are based on the hardness curves normally achieved
with skilled heat treatment.
Case hardening
Flame and induction hardening
Legend pH N/mm2 Max. Hertzian pressure
CHD mm Case hardening depth
SHD mm Surface hardening depth
D mm Outside diameter of track roller
R p0,2 N/mm2 Proof stress of mating track material u1408|e16
r L mm Radius of mating track – the raceway must be flat in the direction
of the yoke type track roller axis u1405|q34.
w12
Case hardening depth
w13
Surface hardening depth
q36
Case hardening depth CHD,
hardness curve
CHD = case hardening depth
with hardness 550 HV
HV = hardness
z = distance from surface
Required hardness
Case hardening
000A4171000A4171
q37
Surface hardening depth SHD,
hardness curve
SHD = surface hardening depth
HV = hardness
z = distance from surface
Required hardness
Flame or induction hardening
000A417D000A417Dhttps://www.schaeffler.de/std/1D65
1410 HR 1
Design of bearing arrangements
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
Schaeffler guideways as mating tracks
✎ Ready-to-fit units The Schaeffler guideways are ready-to-fit units from the Schaeffler linear
range. They are to the appropriate grade Q20 for yoke and stud type track
rollers and correspond to the dimensions of standard profiles:
■ parallelism 20 m/m
■ surface quality Ramax 0,8
■ hardness 58 HRC to 62 HRC
■ angular misalignment between the raceways max. 1 mrad (1 m/mm)
■ deviations of the guideway cross-section +0,05/+0,015
■ length tolerance of the individual guideway +1/0 mm/m.
Enquiry and delivery address
✎ Address
Protection of mating track
The mating track must be protected against contamination.
Where necessary, covers and wipers, for instance made from felt,
should be placed ahead of the track roller u1410|q38.
Schaeffler Technologies AG & Co. KG
Linear Technology Division
66406 Homburg (Saar)
Internet uwww.schaeffler.de/en
E-mail uinfo.linear@schaeffler.com
Telephone 0180 5003872
Fax 0180 5003873
q38
Protection of mating track
against contamination
Covers
000A418F000A418Fhttps://www.schaeffler.de/std/1D65
Design of bearing arrangements
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
Schaeffler guideways as mating tracks
✎ Ready-to-fit units The Schaeffler guideways are ready-to-fit units from the Schaeffler linear
range. They are to the appropriate grade Q20 for yoke and stud type track
rollers and correspond to the dimensions of standard profiles:
■ parallelism 20 m/m
■ surface quality Ramax 0,8
■ hardness 58 HRC to 62 HRC
■ angular misalignment between the raceways max. 1 mrad (1 m/mm)
■ deviations of the guideway cross-section +0,05/+0,015
■ length tolerance of the individual guideway +1/0 mm/m.
Enquiry and delivery address
✎ Address
Protection of mating track
The mating track must be protected against contamination.
Where necessary, covers and wipers, for instance made from felt,
should be placed ahead of the track roller u1410|q38.
Schaeffler Technologies AG & Co. KG
Linear Technology Division
66406 Homburg (Saar)
Internet uwww.schaeffler.de/en
E-mail uinfo.linear@schaeffler.com
Telephone 0180 5003872
Fax 0180 5003873
q38
Protection of mating track
against contamination
Covers
000A418F000A418Fhttps://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1411
Mounting and dismounting
1.17 Mounting and dismounting
✎ Mounting Track rollers must be handled with care before and during assembly.
Their trouble-free operation depends largely on the care taken during
mounting.
✎ Guidelines for mounting The products must be protected against dust, contaminants and moisture.
Contaminants have a detrimental influence on the running and operating
life of rolling bearings.
Do not cool the bearings excessively. Moisture due to condensation can
lead to corrosion in the bearings and bearing seats.
Yoke type track rollers RSTO and STO are not self-retaining. The outer ring
and the needle roller and cage assembly are matched to each other and
must not be interchanged during mounting with components from other
bearings of the same size.
The assembly area must be kept clean and free from dust.
Check the seat of the axis for dimensional, geometrical and positional
accuracy and for cleanliness.
The seating surfaces of the bearing rings must be lightly oiled or rubbed
with solid lubricant.
After mounting, the bearings must be supplied with lubricant.
Finally, the correct functioning of the bearing arrangement must be
checked.
✎ Mounting tools Depending on the application, the following are suitable:
■ induction heaters; note the manufacturer’s guidance on grease and
seals
■ heating cupboard; heating up to +80 °C
■ mechanical or hydraulic presses; use mounting sleeves that cover
the whole circumference of the bearing ring end faces
■ hammer and mounting sleeves; blows should only be applied
concentrically to the sleeve.
Mounting forces must never be directed through the rolling elements.
Avoid direct blows on the bearing rings in all cases. Ensure that the seals
are not damaged.
✎ Guidelines
for dismounting
Dismounting should be taken into consideration in the original design
of the bearing position. If the bearing is to be reused:
■ avoid direct blows on the bearing rings
■ dismounting forces should not be applied through the rolling elements
■ carefully clean the bearings after dismounting
■ do not use a concentrated or “hard” flame.
Mounting and dismounting of yoke type track rollers
✎ Use a mounting press If the tolerances are unfavourable, the yoke type track roller should be
pressed onto the shaft or stud using a mounting press u1412|q39.
The inner ring must be mounted such that the pressing-in force is
distributed uniformly over the end face of the inner ring.
✎ Lubrication hole The bearings must be mounted such that the lubrication hole is positioned
in the unloaded zone. For yoke type track rollers PWTR and
NNTR, defined positioning of the lubrication hole is not required.https://www.schaeffler.de/std/1D65
Mounting and dismounting
1.17 Mounting and dismounting
✎ Mounting Track rollers must be handled with care before and during assembly.
Their trouble-free operation depends largely on the care taken during
mounting.
✎ Guidelines for mounting The products must be protected against dust, contaminants and moisture.
Contaminants have a detrimental influence on the running and operating
life of rolling bearings.
Do not cool the bearings excessively. Moisture due to condensation can
lead to corrosion in the bearings and bearing seats.
Yoke type track rollers RSTO and STO are not self-retaining. The outer ring
and the needle roller and cage assembly are matched to each other and
must not be interchanged during mounting with components from other
bearings of the same size.
The assembly area must be kept clean and free from dust.
Check the seat of the axis for dimensional, geometrical and positional
accuracy and for cleanliness.
The seating surfaces of the bearing rings must be lightly oiled or rubbed
with solid lubricant.
After mounting, the bearings must be supplied with lubricant.
Finally, the correct functioning of the bearing arrangement must be
checked.
✎ Mounting tools Depending on the application, the following are suitable:
■ induction heaters; note the manufacturer’s guidance on grease and
seals
■ heating cupboard; heating up to +80 °C
■ mechanical or hydraulic presses; use mounting sleeves that cover
the whole circumference of the bearing ring end faces
■ hammer and mounting sleeves; blows should only be applied
concentrically to the sleeve.
Mounting forces must never be directed through the rolling elements.
Avoid direct blows on the bearing rings in all cases. Ensure that the seals
are not damaged.
✎ Guidelines
for dismounting
Dismounting should be taken into consideration in the original design
of the bearing position. If the bearing is to be reused:
■ avoid direct blows on the bearing rings
■ dismounting forces should not be applied through the rolling elements
■ carefully clean the bearings after dismounting
■ do not use a concentrated or “hard” flame.
Mounting and dismounting of yoke type track rollers
✎ Use a mounting press If the tolerances are unfavourable, the yoke type track roller should be
pressed onto the shaft or stud using a mounting press u1412|q39.
The inner ring must be mounted such that the pressing-in force is
distributed uniformly over the end face of the inner ring.
✎ Lubrication hole The bearings must be mounted such that the lubrication hole is positioned
in the unloaded zone. For yoke type track rollers PWTR and
NNTR, defined positioning of the lubrication hole is not required.https://www.schaeffler.de/std/1D65
1412 HR 1
Mounting and dismounting
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
✎ Axial location Yoke type track rollers NUTR, PWTR and NNTR must be axially clamped
in place u1412|q40.
Mounting and dismounting of stud type track rollers
✎ Use a mounting press Stud type track rollers should be mounted using a mounting press if
possible u1412|q39.
Blows on the flange of the roller stud must be avoided. The position
of the lubrication hole is indicated on the flanged side of the roller stud.
It must not be positioned in the loaded zone u1404|q33.
Drive fit lubrication nipples for stud type track rollers
✎ Fit the lubrication nipples
before mounting
the bearings
Stud type track rollers are supplied with loose drive fit lubrication nipples
that must be pressed in correctly before mounting of the bearings
u1412|q41. For lubrication of stud type track rollers using the central
lubrication adapter u1393|q24.
Only the lubrication nipples supplied may be used u1413|e17. If lubri-
cation is to be carried out via the locating bore, the axial lubrication holes
in the stud type track roller must be closed off using the lubrication nipples
before mounting u1412|q41.
q39
Mounting of yoke type track roller
using a mounting press
NUTR
Mounting press
000A41D9000A41D9
q40
Axial location
PWTR..-2RS
Hexagon nut
000A41E2000A41E2
q41
Stud type track roller with drive fit
lubrication nipple and dimensions
for pressing mandrel
KR..-PP
000A41EB000A41EBhttps://www.schaeffler.de/std/1D65
Mounting and dismounting
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
✎ Axial location Yoke type track rollers NUTR, PWTR and NNTR must be axially clamped
in place u1412|q40.
Mounting and dismounting of stud type track rollers
✎ Use a mounting press Stud type track rollers should be mounted using a mounting press if
possible u1412|q39.
Blows on the flange of the roller stud must be avoided. The position
of the lubrication hole is indicated on the flanged side of the roller stud.
It must not be positioned in the loaded zone u1404|q33.
Drive fit lubrication nipples for stud type track rollers
✎ Fit the lubrication nipples
before mounting
the bearings
Stud type track rollers are supplied with loose drive fit lubrication nipples
that must be pressed in correctly before mounting of the bearings
u1412|q41. For lubrication of stud type track rollers using the central
lubrication adapter u1393|q24.
Only the lubrication nipples supplied may be used u1413|e17. If lubri-
cation is to be carried out via the locating bore, the axial lubrication holes
in the stud type track roller must be closed off using the lubrication nipples
before mounting u1412|q41.
q39
Mounting of yoke type track roller
using a mounting press
NUTR
Mounting press
000A41D9000A41D9
q40
Axial location
PWTR..-2RS
Hexagon nut
000A41E2000A41E2
q41
Stud type track roller with drive fit
lubrication nipple and dimensions
for pressing mandrel
KR..-PP
000A41EB000A41EBhttps://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1413
Mounting and dismounting
Axial location of stud type track rollers
✎ Secure bearings axially Stud type track rollers must be axially secured using a hexagon nut.
The slot or hexagonal socket on the end of the roller stud can be used
to hold the bearing by means of a key while tightening the fixing nut
and to adjust the eccentric collar u1413|q42. If heavy vibration occurs,
self-locking nuts to DIN 985 or special locking washers can be used.
The tightening torque for the fixing nuts stated in the product tables must
be observed. It is only in this way that the permissible radial load can
be ensured. If this cannot be adhered to, an interference fit is required.
For self-locking nuts, a higher tightening torque must be observed;
the advice given by the nut manufacturer must be followed.
Stud type track rollers with eccentric collar
✎ Highest point
on the eccentric collar
The highest point on the eccentric collar is indicated on the roller stud
side, which also gives the position of the radial lubrication hole.
Commissioning and relubrication
✎ Position
of the relubrication holes
Stud type track rollers have a lubrication hole for relubrication:
■ on the flange side of the roller stud
■ on the thread-side end face for outside diameters from 22 mm
■ on the shank of the roller stud, for outside diameters from 30 mm
with an additional lubrication groove.
Stud type track rollers with an eccentric collar cannot be relubricated
via the stud. The eccentric collar covers the lubrication hole.
For lubrication, only grease guns with needle-point nozzles may be used
that have an opening angle 60° u1414|q43.
Before commissioning, the lubrication holes and feed pipes must be filled
with grease in order to ensure protection against corrosion; lubrication can
be carried out at the same time.
Lubrication will be more difficult if a rolling element is located over
the radial lubrication hole. Relubrication should therefore be carried out
with the bearing still warm from operation and rotating if safe to do so,
before the bearing comes to rest if safe to do so and before extended
breaks in operation.
e17
Drive fit lubrication nipples
1) Projection of lubrication nipple,
see product tables
Lubrication
nipple
Dimensions Suitable for
outside diameter
D d L h dS L S D
±0,1
mm mm mm mm mm mm
NIPA1 6 4 6 1,51) – – 16 and 19
NIPA14,5 4,7 4 4,5 1 4,5 5 22 to 32
NIPA27,5 7,5 6 7,5 2 7,5 6 35 to 52
NIPA39,5 9,5 8 9,5 3 10 9 62 to 90
q42
Securing the bearing
using an Allen key
Allen key
000A41F4000A41F4https://www.schaeffler.de/std/1D65
Mounting and dismounting
Axial location of stud type track rollers
✎ Secure bearings axially Stud type track rollers must be axially secured using a hexagon nut.
The slot or hexagonal socket on the end of the roller stud can be used
to hold the bearing by means of a key while tightening the fixing nut
and to adjust the eccentric collar u1413|q42. If heavy vibration occurs,
self-locking nuts to DIN 985 or special locking washers can be used.
The tightening torque for the fixing nuts stated in the product tables must
be observed. It is only in this way that the permissible radial load can
be ensured. If this cannot be adhered to, an interference fit is required.
For self-locking nuts, a higher tightening torque must be observed;
the advice given by the nut manufacturer must be followed.
Stud type track rollers with eccentric collar
✎ Highest point
on the eccentric collar
The highest point on the eccentric collar is indicated on the roller stud
side, which also gives the position of the radial lubrication hole.
Commissioning and relubrication
✎ Position
of the relubrication holes
Stud type track rollers have a lubrication hole for relubrication:
■ on the flange side of the roller stud
■ on the thread-side end face for outside diameters from 22 mm
■ on the shank of the roller stud, for outside diameters from 30 mm
with an additional lubrication groove.
Stud type track rollers with an eccentric collar cannot be relubricated
via the stud. The eccentric collar covers the lubrication hole.
For lubrication, only grease guns with needle-point nozzles may be used
that have an opening angle 60° u1414|q43.
Before commissioning, the lubrication holes and feed pipes must be filled
with grease in order to ensure protection against corrosion; lubrication can
be carried out at the same time.
Lubrication will be more difficult if a rolling element is located over
the radial lubrication hole. Relubrication should therefore be carried out
with the bearing still warm from operation and rotating if safe to do so,
before the bearing comes to rest if safe to do so and before extended
breaks in operation.
e17
Drive fit lubrication nipples
1) Projection of lubrication nipple,
see product tables
Lubrication
nipple
Dimensions Suitable for
outside diameter
D d L h dS L S D
±0,1
mm mm mm mm mm mm
NIPA1 6 4 6 1,51) – – 16 and 19
NIPA14,5 4,7 4 4,5 1 4,5 5 22 to 32
NIPA27,5 7,5 6 7,5 2 7,5 6 35 to 52
NIPA39,5 9,5 8 9,5 3 10 9 62 to 90
q42
Securing the bearing
using an Allen key
Allen key
000A41F4000A41F4https://www.schaeffler.de/std/1D65
1414 HR 1
Legal notice regarding data freshness
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
The grease used for relubrication should be the same as that used
for initial greasing. If this is not possible, the miscibility and compatibility
of the greases must be checked. Relubrication should continue until
a fresh collar of grease appears at the seal gaps. The old grease must be
able to leave the bearing unhindered.
Schaeffler Mounting Handbook
✎ Rolling bearings must be
handled with great care
Rolling bearings are well-proven precision machine elements for the
design of economical and reliable bearing arrangements, which offer
high operational security. In order that these products can function
correctly and achieve the envisaged operating life without detrimental
effect, they must be handled with care.
The Schaeffler Mounting Handbook MH 1 gives comprehensive infor-
mation about the correct storage, mounting, dismounting and mainten-
ance of rotary rolling bearings uhttps://www.schaeffler.de/std/1D53.
It also provides information which should be observed by the designer,
in relation to the mounting, dismounting and maintenance of bearings,
in the original design of the bearing position. This book is available from
Schaeffler on request.
1.18 Legal notice regarding
data freshness✎ The further development
of products may also result
in technical changes
to catalogue products
Of central interest to Schaeffler is the further development and opti-
misation of its products and the satisfaction of its customers. In order that
you, as the customer, can keep yourself optimally informed about the pro-
gress that is being made here and with regard to the current technical
status of the products, we publish any product changes which differ from
the printed version in our electronic product catalogue.
We therefore reserve the right to make changes to the data and illus-
trations in this catalogue. This catalogue reflects the status at the time
of printing. More recent publications released by us (as printed or
digital media) will automatically precede this catalogue if they involve
the same subject. Therefore, please always use our electronic product
catalogue to check whether more up-to-date information or modification
notices exist for your desired product.
Link to electronic product catalogue
The following link will take you to the Schaeffler electronic product
catalogue: uhttps://medias.schaeffler.com.
q43
Relubrication
using a grease gun
Needle-point nozzle,
opening angle
60°
000A41FD000A41FDhttps://www.schaeffler.de/std/1D65
Legal notice regarding data freshness
Track rollers | Yoke type roller bearing track rollers, stud type roller bearing track rollers |
The grease used for relubrication should be the same as that used
for initial greasing. If this is not possible, the miscibility and compatibility
of the greases must be checked. Relubrication should continue until
a fresh collar of grease appears at the seal gaps. The old grease must be
able to leave the bearing unhindered.
Schaeffler Mounting Handbook
✎ Rolling bearings must be
handled with great care
Rolling bearings are well-proven precision machine elements for the
design of economical and reliable bearing arrangements, which offer
high operational security. In order that these products can function
correctly and achieve the envisaged operating life without detrimental
effect, they must be handled with care.
The Schaeffler Mounting Handbook MH 1 gives comprehensive infor-
mation about the correct storage, mounting, dismounting and mainten-
ance of rotary rolling bearings uhttps://www.schaeffler.de/std/1D53.
It also provides information which should be observed by the designer,
in relation to the mounting, dismounting and maintenance of bearings,
in the original design of the bearing position. This book is available from
Schaeffler on request.
1.18 Legal notice regarding
data freshness✎ The further development
of products may also result
in technical changes
to catalogue products
Of central interest to Schaeffler is the further development and opti-
misation of its products and the satisfaction of its customers. In order that
you, as the customer, can keep yourself optimally informed about the pro-
gress that is being made here and with regard to the current technical
status of the products, we publish any product changes which differ from
the printed version in our electronic product catalogue.
We therefore reserve the right to make changes to the data and illus-
trations in this catalogue. This catalogue reflects the status at the time
of printing. More recent publications released by us (as printed or
digital media) will automatically precede this catalogue if they involve
the same subject. Therefore, please always use our electronic product
catalogue to check whether more up-to-date information or modification
notices exist for your desired product.
Link to electronic product catalogue
The following link will take you to the Schaeffler electronic product
catalogue: uhttps://medias.schaeffler.com.
q43
Relubrication
using a grease gun
Needle-point nozzle,
opening angle
60°
000A41FD000A41FDhttps://www.schaeffler.de/std/1D65
1416 HR 1
r D = 16 – 90 mm
Yoke type roller bearing track rollers without axial guidance, open
Yoke type rollerbearingtrack rollers without axial guidance,open
Yoke type roller
bearing track rollers
Without axial guidance
Open
D = 16 – 90 mm
RSTO
000A422D000A422D
STO
000A4236000A4236
medias uhttps://www.schaeffler.de/std/1E1D
1) F = raceway diameter of inner ring; F w = needle roller enveloping circle in tolerance class F6.
Main dimensions Basic load ratings Fatigue
limit load
Speed Mass Without
inner ring
Designation
Dimensions
D F
Fw1) C dyn.
C r w
stat.
C0r w
C ur w nD G m u1398|1.12
u1399|1.13
E r
N N N min–1 g min.
16 7 7,8 2 550 2 600 330 16 000 8,5 RSTO5-TV 10 0,3
19 10 9,8 3 750 4 550 650 10 000 12,5 RSTO6-TV 13 0,3
24 12 9,8 4 200 5 500 780 8 000 21 RSTO8-TV 15 0,3
30 14 11,8 8 400 9 300 1 370 5 500 42 RSTO10 20 0,3
32 16 11,8 9 000 10 300 1 530 4 500 49 RSTO12 22 0,3
35 20 11,8 9 100 10 900 1 640 3 300 50 RSTO15 26 0,3
40 22 15,8 14 200 17 900 2 550 2 800 88 RSTO17 29 0,3
47 25 15,8 16 100 21 700 3 050 2 400 130 RSTO20 32 0,3
52 30 15,8 16 400 23 200 3 300 1 800 150 RSTO25 37 0,3
62 38 19,8 23 100 35 000 4 700 1 300 255 RSTO30 46 0,6
72 42 19,8 25 000 40 500 5 400 1 100 375 RSTO35 50 0,6
80 50 19,8 23 700 39 500 5 900 850 420 RSTO40 58 1
85 55 19,8 25 000 43 500 5 900 750 453 RSTO45 63 1
90 60 19,8 25 500 46 000 6 300 650 481 RSTO50 68 1
Main dimensions Basic load ratings Fatigue
limit load
Speed Mass With
inner ring
Designation
Dimensions
D F1) C dyn.
C r w
stat.
C0r w
C ur w nD G m u1398|1.12
u1399|1.13
d B E r
N N N min–1 g min.
19 10 9,8 3 750 4 550 650 10 000 17 STO6-TV 6 10 13 0,3
24 12 9,8 4 200 5 500 780 8 000 26 STO8-TV 8 10 15 0,3
30 14 11,8 8 400 9 300 1 370 5 500 49 STO10 10 12 20 0,3
32 16 11,8 9 000 10 300 1 530 4 500 57 STO12 12 12 22 0,3
35 20 11,8 9 100 10 900 1 640 3 300 63 STO15 15 12 26 0,3
40 22 15,8 14 200 17 900 2 550 2 800 107 STO17 17 16 29 0,3
47 25 15,8 16 100 21 700 3 050 2 400 152 STO20 20 16 32 0,3
52 30 15,8 16 400 23 200 3 300 1 800 177 STO25 25 16 37 0,3
62 38 19,8 23 100 35 000 4 700 1 300 308 STO30 30 20 46 0,6
72 42 19,8 25 000 40 500 5 400 1 100 441 STO35 35 20 50 0,6
80 50 19,8 23 700 39 500 5 900 850 530 STO40 40 20 58 1
85 55 19,8 25 000 43 500 5 900 750 576 STO45 45 20 63 1
90 60 19,8 25 500 46 000 6 300 650 617 STO50 50 20 68 1https://www.schaeffler.de/std/1D65
r D = 16 – 90 mm
Yoke type roller bearing track rollers without axial guidance, open
Yoke type rollerbearingtrack rollers without axial guidance,open
Yoke type roller
bearing track rollers
Without axial guidance
Open
D = 16 – 90 mm
RSTO
000A422D000A422D
STO
000A4236000A4236
medias uhttps://www.schaeffler.de/std/1E1D
1) F = raceway diameter of inner ring; F w = needle roller enveloping circle in tolerance class F6.
Main dimensions Basic load ratings Fatigue
limit load
Speed Mass Without
inner ring
Designation
Dimensions
D F
Fw1) C dyn.
C r w
stat.
C0r w
C ur w nD G m u1398|1.12
u1399|1.13
E r
N N N min–1 g min.
16 7 7,8 2 550 2 600 330 16 000 8,5 RSTO5-TV 10 0,3
19 10 9,8 3 750 4 550 650 10 000 12,5 RSTO6-TV 13 0,3
24 12 9,8 4 200 5 500 780 8 000 21 RSTO8-TV 15 0,3
30 14 11,8 8 400 9 300 1 370 5 500 42 RSTO10 20 0,3
32 16 11,8 9 000 10 300 1 530 4 500 49 RSTO12 22 0,3
35 20 11,8 9 100 10 900 1 640 3 300 50 RSTO15 26 0,3
40 22 15,8 14 200 17 900 2 550 2 800 88 RSTO17 29 0,3
47 25 15,8 16 100 21 700 3 050 2 400 130 RSTO20 32 0,3
52 30 15,8 16 400 23 200 3 300 1 800 150 RSTO25 37 0,3
62 38 19,8 23 100 35 000 4 700 1 300 255 RSTO30 46 0,6
72 42 19,8 25 000 40 500 5 400 1 100 375 RSTO35 50 0,6
80 50 19,8 23 700 39 500 5 900 850 420 RSTO40 58 1
85 55 19,8 25 000 43 500 5 900 750 453 RSTO45 63 1
90 60 19,8 25 500 46 000 6 300 650 481 RSTO50 68 1
Main dimensions Basic load ratings Fatigue
limit load
Speed Mass With
inner ring
Designation
Dimensions
D F1) C dyn.
C r w
stat.
C0r w
C ur w nD G m u1398|1.12
u1399|1.13
d B E r
N N N min–1 g min.
19 10 9,8 3 750 4 550 650 10 000 17 STO6-TV 6 10 13 0,3
24 12 9,8 4 200 5 500 780 8 000 26 STO8-TV 8 10 15 0,3
30 14 11,8 8 400 9 300 1 370 5 500 49 STO10 10 12 20 0,3
32 16 11,8 9 000 10 300 1 530 4 500 57 STO12 12 12 22 0,3
35 20 11,8 9 100 10 900 1 640 3 300 63 STO15 15 12 26 0,3
40 22 15,8 14 200 17 900 2 550 2 800 107 STO17 17 16 29 0,3
47 25 15,8 16 100 21 700 3 050 2 400 152 STO20 20 16 32 0,3
52 30 15,8 16 400 23 200 3 300 1 800 177 STO25 25 16 37 0,3
62 38 19,8 23 100 35 000 4 700 1 300 308 STO30 30 20 46 0,6
72 42 19,8 25 000 40 500 5 400 1 100 441 STO35 35 20 50 0,6
80 50 19,8 23 700 39 500 5 900 850 530 STO40 40 20 58 1
85 55 19,8 25 000 43 500 5 900 750 576 STO45 45 20 63 1
90 60 19,8 25 500 46 000 6 300 650 617 STO50 50 20 68 1https://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1417
D = 19 – 90 mm rYoke type roller bearing track rollers, without axial guidance, sealed
Yoke type rollerbearingtrack rollers, without axialguidance,sealed
Yoke type roller
bearing track rollers
Without axial guidance
Sealed
D = 19 – 90 mm
RNA22
With seal 2RSR
000A4278000A4278
NA22
With seal 2RSR
000A4290000A4290
medias uhttps://www.schaeffler.de/std/1E1E
1) F = raceway diameter of inner ring; Fw = needle roller enveloping circle in tolerance class F6.
Main dimensions Basic load ratings Fatigue
limit load
Speed Mass Without
inner ring
Designation
Dimensions
D F
Fw1) C dyn.
C r w
stat.
C0r w
C ur w n D G m u1398|1.12
u1399|1.13
D1 r
N N N min–1 g min. min.
19 10 11,8 3 900 3 700 485 9 000 18 RNA22/6-2RSR 15,15 0,3
24 12 11,8 4 800 4 300 630 7 000 29 RNA22/8-2RSR 18 0,3
30 14 13,8 7 000 6 900 1 090 5 500 52 RNA2200-2RSR 20 0,6
32 16 13,8 7 500 8 300 1 270 4 700 57 RNA2201-2RSR 22 0,6
35 20 13,8 7 600 9 800 1 370 3 400 60 RNA2202-2RSR 26 0,6
40 22 15,8 9 900 14 000 1 840 3 000 94 RNA2203-2RSR 28 1
47 25 17,8 14 000 19 100 2 650 2 300 152 RNA2204-2RSR 33 1
52 30 17,8 14 400 20 800 2 900 1 800 179 RNA2205-2RSR 38 1
62 35 19,8 17 100 26 000 3 550 1 400 284 RNA2206-2RSR 43 1
72 42 22,7 21 500 36 000 5 200 1 100 432 RNA2207-2RSR 50 1,1
80 48 22,7 26 000 41 000 5 300 850 530 RNA2208-2RSR 57 1,1
Main dimensions Basic load ratings Fatigue
limit load
Speed Mass With
inner ring
Designation
Dimensions
D F1) C dyn.
C r w
stat.
C0r w
C ur w n D G m u1398|1.12
u1399|1.13
d B D1 r r 1
N N N min–1 g min. min. min.
19 10 11,8 3 900 3 700 485 9 000 22 NA22/6-2RSR 6 12 16 0,3 0,3
24 12 11,8 4 800 4 300 630 7 000 34 NA22/8-2RSR 8 12 18 0,3 0,3
30 14 13,8 7 000 6 900 1 090 5 500 60 NA2200-2RSR 10 14 20 0,6 0,3
32 16 13,8 7 500 8 300 1 270 4 700 67 NA2201-2RSR 12 14 22 0,6 0,3
35 20 13,8 7 600 9 800 1 370 3 400 75 NA2202-2RSR 15 14 26 0,6 0,3
40 22 15,8 9 900 14 000 1 840 3 000 112 NA2203-2RSR 17 16 28 1 0,3
47 25 17,8 14 000 19 100 2 650 2 300 177 NA2204-2RSR 20 18 33 1 0,3
52 30 17,8 14 400 20 800 2 900 1 800 209 NA2205-2RSR 25 18 38 1 0,3
62 35 19,8 17 100 26 000 3 550 1 400 324 NA2206-2RSR 30 20 43 1 0,3
72 42 22,7 21 500 36 000 5 200 1 100 505 NA2207-2RSR 35 23 50 1,1 0,6
80 48 22,7 26 000 41 000 5 300 850 628 NA2208-2RSR 40 23 57 1,1 0,6
90 58 22,7 26 000 43 000 5 600 650 690 NA2210-2RSR 50 23 68 1,1 0,6https://www.schaeffler.de/std/1D65
D = 19 – 90 mm rYoke type roller bearing track rollers, without axial guidance, sealed
Yoke type rollerbearingtrack rollers, without axialguidance,sealed
Yoke type roller
bearing track rollers
Without axial guidance
Sealed
D = 19 – 90 mm
RNA22
With seal 2RSR
000A4278000A4278
NA22
With seal 2RSR
000A4290000A4290
medias uhttps://www.schaeffler.de/std/1E1E
1) F = raceway diameter of inner ring; Fw = needle roller enveloping circle in tolerance class F6.
Main dimensions Basic load ratings Fatigue
limit load
Speed Mass Without
inner ring
Designation
Dimensions
D F
Fw1) C dyn.
C r w
stat.
C0r w
C ur w n D G m u1398|1.12
u1399|1.13
D1 r
N N N min–1 g min. min.
19 10 11,8 3 900 3 700 485 9 000 18 RNA22/6-2RSR 15,15 0,3
24 12 11,8 4 800 4 300 630 7 000 29 RNA22/8-2RSR 18 0,3
30 14 13,8 7 000 6 900 1 090 5 500 52 RNA2200-2RSR 20 0,6
32 16 13,8 7 500 8 300 1 270 4 700 57 RNA2201-2RSR 22 0,6
35 20 13,8 7 600 9 800 1 370 3 400 60 RNA2202-2RSR 26 0,6
40 22 15,8 9 900 14 000 1 840 3 000 94 RNA2203-2RSR 28 1
47 25 17,8 14 000 19 100 2 650 2 300 152 RNA2204-2RSR 33 1
52 30 17,8 14 400 20 800 2 900 1 800 179 RNA2205-2RSR 38 1
62 35 19,8 17 100 26 000 3 550 1 400 284 RNA2206-2RSR 43 1
72 42 22,7 21 500 36 000 5 200 1 100 432 RNA2207-2RSR 50 1,1
80 48 22,7 26 000 41 000 5 300 850 530 RNA2208-2RSR 57 1,1
Main dimensions Basic load ratings Fatigue
limit load
Speed Mass With
inner ring
Designation
Dimensions
D F1) C dyn.
C r w
stat.
C0r w
C ur w n D G m u1398|1.12
u1399|1.13
d B D1 r r 1
N N N min–1 g min. min. min.
19 10 11,8 3 900 3 700 485 9 000 22 NA22/6-2RSR 6 12 16 0,3 0,3
24 12 11,8 4 800 4 300 630 7 000 34 NA22/8-2RSR 8 12 18 0,3 0,3
30 14 13,8 7 000 6 900 1 090 5 500 60 NA2200-2RSR 10 14 20 0,6 0,3
32 16 13,8 7 500 8 300 1 270 4 700 67 NA2201-2RSR 12 14 22 0,6 0,3
35 20 13,8 7 600 9 800 1 370 3 400 75 NA2202-2RSR 15 14 26 0,6 0,3
40 22 15,8 9 900 14 000 1 840 3 000 112 NA2203-2RSR 17 16 28 1 0,3
47 25 17,8 14 000 19 100 2 650 2 300 177 NA2204-2RSR 20 18 33 1 0,3
52 30 17,8 14 400 20 800 2 900 1 800 209 NA2205-2RSR 25 18 38 1 0,3
62 35 19,8 17 100 26 000 3 550 1 400 324 NA2206-2RSR 30 20 43 1 0,3
72 42 22,7 21 500 36 000 5 200 1 100 505 NA2207-2RSR 35 23 50 1,1 0,6
80 48 22,7 26 000 41 000 5 300 850 628 NA2208-2RSR 40 23 57 1,1 0,6
90 58 22,7 26 000 43 000 5 600 650 690 NA2210-2RSR 50 23 68 1,1 0,6https://www.schaeffler.de/std/1D65
1418 HR 1
r D = 5 – 50 mm
Yoke type roller bearing track rollers, with axial guidance, gap seal or
axial plain washer
Yoke type rollerbearingtrack rollers,withaxial guidance,gapsealor axial plainwasher
Yoke type roller
bearing track
rollers
With axial guidance
Gap seal or
axial plain washer
D = 5 – 50 mm
NATR (R = 500 mm)
With gap seal
000A429A000A429A
NATV (R = 500 mm)
With gap seal
000A42A3000A42A3
NATR, NATV
With optimised INA profile
With axial plain washer
000A84E3000A84E3
medias uhttps://www.schaeffler.de/std/1E1F
1) Bearings with gap seals and radius of curvature of R = 500 mm.
2) Bearings with plastic axial plain washer and optimised INA profile.
Permissible operating temperature: –30 °C to +100 °C (continuous operation).
Main
dimensions
Basic load ratings Fatigue
limit load
Speed Mass Designation 1) Mass Designation 2) Dimensions
d D B dyn.
C r w
stat.
C 0r w
Cur w nD G m u1398|1.12
u1399|1.13
m u1398|1.12
u1399|1.13
C d2 r
N N N min–1 g g min.
5 16 12 3 150 3 350 450 14 000 14 NATR5 14 NATR5-PP 11 12,5 0,15
16 12 4 900 6 600 950 3 800 15 NATV5 15 NATV5-PP 11 12,5 0,15
6 19 12 3 500 4 000 540 11 000 20 NATR6 19 NATR6-PP 11 15 0,15
19 12 5 400 8 000 1 170 3 100 21 NATV6 21 NATV6-PP 11 15 0,15
8 24 15 5 500 6 600 930 7 500 41 NATR8 38 NATR8-PP 14 19 0,3
24 15 7 800 11 600 1 590 2 500 42 NATV8 41 NATV8-PP 14 19 0,3
10 30 15 6 800 8 600 1 220 5 500 64 NATR10 64 NATR10-PP 14 23 0,6
30 15 9 500 14 900 2 050 2 100 65 NATV10 64 NATV10-PP 14 23 0,6
12 32 15 7 000 9 000 1 290 4 500 71 NATR12 66 NATR12-PP 14 25 0,6
32 15 9 700 15 700 2 170 1 800 72 NATV12 69 NATV12-PP 14 25 0,6
15 35 19 9 700 14 300 1 830 3 600 101 NATR15 95 NATR15-PP 18 27,6 0,6
35 19 12 600 23 100 3 200 1 600 109 NATV15 101 NATV15-PP 18 27,6 0,6
17 40 21 10 900 15 800 2 090 2 900 144 NATR17 139 NATR17-PP 20 31,5 1
40 21 14 700 26 500 3 500 1 400 152 NATV17 147 NATV17-PP 20 31,5 1
20 47 25 15 400 26 000 3 400 2 400 246 NATR20 236 NATR20-PP 24 36,5 1
47 25 20 300 42 000 5 900 1 300 254 NATV20 245 NATV20-PP 24 36,5 1
25 52 25 15 300 27 000 3 550 1 800 275 NATR25 271 NATR25-PP 24 41,5 1
52 25 20 200 44 000 6 200 1 000 285 NATV25 281 NATV25-PP 24 41,5 1
30 62 29 23 200 39 000 5 200 1 300 470 NATR30 444 NATR30-PP 28 51 1
62 29 30 000 62 000 8 800 850 481 NATV30 468 NATV30-PP 28 51 1
35 72 29 24 800 44 500 5 900 1 000 – – 547 NATR35-PP 28 58 1,1
72 29 32 500 71 000 10 100 750 – – 630 NATV35-PP 28 58 1,1
40 80 32 32 000 58 000 8 300 850 – – 795 NATR40-PP 30 66 1,1
80 32 40 000 88 000 13 000 650 – – 832 NATV40-PP 30 66 1,1
50 90 32 31 000 59 000 8 400 650 – – 867 NATR50-PP 30 76 1,1
90 32 39 000 92 000 13 600 550 – – 969 NATV50-PP 30 76 1,1https://www.schaeffler.de/std/1D65
r D = 5 – 50 mm
Yoke type roller bearing track rollers, with axial guidance, gap seal or
axial plain washer
Yoke type rollerbearingtrack rollers,withaxial guidance,gapsealor axial plainwasher
Yoke type roller
bearing track
rollers
With axial guidance
Gap seal or
axial plain washer
D = 5 – 50 mm
NATR (R = 500 mm)
With gap seal
000A429A000A429A
NATV (R = 500 mm)
With gap seal
000A42A3000A42A3
NATR, NATV
With optimised INA profile
With axial plain washer
000A84E3000A84E3
medias uhttps://www.schaeffler.de/std/1E1F
1) Bearings with gap seals and radius of curvature of R = 500 mm.
2) Bearings with plastic axial plain washer and optimised INA profile.
Permissible operating temperature: –30 °C to +100 °C (continuous operation).
Main
dimensions
Basic load ratings Fatigue
limit load
Speed Mass Designation 1) Mass Designation 2) Dimensions
d D B dyn.
C r w
stat.
C 0r w
Cur w nD G m u1398|1.12
u1399|1.13
m u1398|1.12
u1399|1.13
C d2 r
N N N min–1 g g min.
5 16 12 3 150 3 350 450 14 000 14 NATR5 14 NATR5-PP 11 12,5 0,15
16 12 4 900 6 600 950 3 800 15 NATV5 15 NATV5-PP 11 12,5 0,15
6 19 12 3 500 4 000 540 11 000 20 NATR6 19 NATR6-PP 11 15 0,15
19 12 5 400 8 000 1 170 3 100 21 NATV6 21 NATV6-PP 11 15 0,15
8 24 15 5 500 6 600 930 7 500 41 NATR8 38 NATR8-PP 14 19 0,3
24 15 7 800 11 600 1 590 2 500 42 NATV8 41 NATV8-PP 14 19 0,3
10 30 15 6 800 8 600 1 220 5 500 64 NATR10 64 NATR10-PP 14 23 0,6
30 15 9 500 14 900 2 050 2 100 65 NATV10 64 NATV10-PP 14 23 0,6
12 32 15 7 000 9 000 1 290 4 500 71 NATR12 66 NATR12-PP 14 25 0,6
32 15 9 700 15 700 2 170 1 800 72 NATV12 69 NATV12-PP 14 25 0,6
15 35 19 9 700 14 300 1 830 3 600 101 NATR15 95 NATR15-PP 18 27,6 0,6
35 19 12 600 23 100 3 200 1 600 109 NATV15 101 NATV15-PP 18 27,6 0,6
17 40 21 10 900 15 800 2 090 2 900 144 NATR17 139 NATR17-PP 20 31,5 1
40 21 14 700 26 500 3 500 1 400 152 NATV17 147 NATV17-PP 20 31,5 1
20 47 25 15 400 26 000 3 400 2 400 246 NATR20 236 NATR20-PP 24 36,5 1
47 25 20 300 42 000 5 900 1 300 254 NATV20 245 NATV20-PP 24 36,5 1
25 52 25 15 300 27 000 3 550 1 800 275 NATR25 271 NATR25-PP 24 41,5 1
52 25 20 200 44 000 6 200 1 000 285 NATV25 281 NATV25-PP 24 41,5 1
30 62 29 23 200 39 000 5 200 1 300 470 NATR30 444 NATR30-PP 28 51 1
62 29 30 000 62 000 8 800 850 481 NATV30 468 NATV30-PP 28 51 1
35 72 29 24 800 44 500 5 900 1 000 – – 547 NATR35-PP 28 58 1,1
72 29 32 500 71 000 10 100 750 – – 630 NATV35-PP 28 58 1,1
40 80 32 32 000 58 000 8 300 850 – – 795 NATR40-PP 30 66 1,1
80 32 40 000 88 000 13 000 650 – – 832 NATV40-PP 30 66 1,1
50 90 32 31 000 59 000 8 400 650 – – 867 NATR50-PP 30 76 1,1
90 32 39 000 92 000 13 600 550 – – 969 NATV50-PP 30 76 1,1https://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1419
D = 130 – 310 mm rYoke type roller bearing track rollers with axial guidance, sealed
Yoke type rollerbearingtrack rollers withaxialguidance, sealed
Yoke type roller bearing track rollers
With axial guidance
Sealed
D = 130 – 310 mm
NNTR
With seal 2ZL
000A42AC000A42AC
medias uhttps://www.schaeffler.de/std/1E20
1) Radius of curvature R = 10 000 for NNTR5013065-2ZL to NNTR110260115-2ZL.
Radius of curvature R = 15 000 for NNTR120290135-2ZL to NNTR130310146-2ZL.
Main
dimensions
Basic load ratings Fatigue
limit load
Speed Mass Designation1)
D d B dyn.
Cr w
stat.
C 0r w
dyn.
Fr per
stat.
F0r per
Cur w nD G m u1398|1.12
u1399|1.13
h10 N N N N N min–1 kg
130 50 65 193 000 265 000 265 000 265 000 37 000 1 100 5 200 NNTR5013065-2ZL
140 55 70 226 000 315 000 280 000 315 000 44 500 850 6 400 NNTR5514070-2ZL
150 60 75 255 000 365 000 330 000 365 000 53 000 800 7 800 NNTR6015075-2ZL
160 65 75 280 000 395 000 350 000 395 000 56 000 700 8 800 NNTR6516075-2ZL
180 70 85 355 000 510 000 465 000 510 000 75 000 600 13 000 NNTR7018085-2ZL
200 80 90 415 000 610 000 550 000 610 000 87 000 500 16 800 NNTR8020090-2ZL
220 90 100 500 000 750 000 600 000 750 000 104 000 400 22 500 NNTR90220100-2ZL
240 100 105 560 000 870 000 710 000 870 000 118 000 340 28 000 NNTR100240105-2ZL
260 110 115 670 000 1 050 000 820 000 1 050 000 143 000 300 35 600 NNTR110260115-2ZL
290 120 135 880 000 1 400 000 1 110 000 1 400 000 187 000 260 52 800 NNTR120290135-2ZL
310 130 146 1 010 000 1 630 000 1 280 000 1 630 000 216 000 240 65 200 NNTR130310146-2ZL
Dimensions Mounting dimensions Number
of lubrication
holes
Designation1)
D C r r1 d2 D1 d3 u1398|1.12
u1399|1.13
h10 min. min.
130 63 3 2 63 80 3 3 NNTR5013065-2ZL
140 68 3 2 73 91 4 3 NNTR5514070-2ZL
150 73 3 2 78 97 4 3 NNTR6015075-2ZL
160 73 3 2 82 103 5 3 NNTR6516075-2ZL
180 83 3 2 92 115 5 3 NNTR7018085-2ZL
200 88 4 2 102 127 5 3 NNTR8020090-2ZL
220 98 4 2,5 119 146 5 3 NNTR90220100-2ZL
240 103 4 2,5 132 160 6 6 NNTR100240105-2ZL
260 113 4 2,5 143 174 6 6 NNTR110260115-2ZL
290 133 4 3 155 191 8 6 NNTR120290135-2ZL
310 144 5 3 165 204 8 6 NNTR130310146-2ZLhttps://www.schaeffler.de/std/1D65
D = 130 – 310 mm rYoke type roller bearing track rollers with axial guidance, sealed
Yoke type rollerbearingtrack rollers withaxialguidance, sealed
Yoke type roller bearing track rollers
With axial guidance
Sealed
D = 130 – 310 mm
NNTR
With seal 2ZL
000A42AC000A42AC
medias uhttps://www.schaeffler.de/std/1E20
1) Radius of curvature R = 10 000 for NNTR5013065-2ZL to NNTR110260115-2ZL.
Radius of curvature R = 15 000 for NNTR120290135-2ZL to NNTR130310146-2ZL.
Main
dimensions
Basic load ratings Fatigue
limit load
Speed Mass Designation1)
D d B dyn.
Cr w
stat.
C 0r w
dyn.
Fr per
stat.
F0r per
Cur w nD G m u1398|1.12
u1399|1.13
h10 N N N N N min–1 kg
130 50 65 193 000 265 000 265 000 265 000 37 000 1 100 5 200 NNTR5013065-2ZL
140 55 70 226 000 315 000 280 000 315 000 44 500 850 6 400 NNTR5514070-2ZL
150 60 75 255 000 365 000 330 000 365 000 53 000 800 7 800 NNTR6015075-2ZL
160 65 75 280 000 395 000 350 000 395 000 56 000 700 8 800 NNTR6516075-2ZL
180 70 85 355 000 510 000 465 000 510 000 75 000 600 13 000 NNTR7018085-2ZL
200 80 90 415 000 610 000 550 000 610 000 87 000 500 16 800 NNTR8020090-2ZL
220 90 100 500 000 750 000 600 000 750 000 104 000 400 22 500 NNTR90220100-2ZL
240 100 105 560 000 870 000 710 000 870 000 118 000 340 28 000 NNTR100240105-2ZL
260 110 115 670 000 1 050 000 820 000 1 050 000 143 000 300 35 600 NNTR110260115-2ZL
290 120 135 880 000 1 400 000 1 110 000 1 400 000 187 000 260 52 800 NNTR120290135-2ZL
310 130 146 1 010 000 1 630 000 1 280 000 1 630 000 216 000 240 65 200 NNTR130310146-2ZL
Dimensions Mounting dimensions Number
of lubrication
holes
Designation1)
D C r r1 d2 D1 d3 u1398|1.12
u1399|1.13
h10 min. min.
130 63 3 2 63 80 3 3 NNTR5013065-2ZL
140 68 3 2 73 91 4 3 NNTR5514070-2ZL
150 73 3 2 78 97 4 3 NNTR6015075-2ZL
160 73 3 2 82 103 5 3 NNTR6516075-2ZL
180 83 3 2 92 115 5 3 NNTR7018085-2ZL
200 88 4 2 102 127 5 3 NNTR8020090-2ZL
220 98 4 2,5 119 146 5 3 NNTR90220100-2ZL
240 103 4 2,5 132 160 6 6 NNTR100240105-2ZL
260 113 4 2,5 143 174 6 6 NNTR110260115-2ZL
290 133 4 3 155 191 8 6 NNTR120290135-2ZL
310 144 5 3 165 204 8 6 NNTR130310146-2ZLhttps://www.schaeffler.de/std/1D65
1420 HR 1
r Yoke type roller bearing track rollers with optimised INA profile and axial guidance, sealed
Yoke type rollerbearingtrack rollers withoptimisedINAprofile andaxial guidance,sealed
Yoke type roller
bearing track rollers
With optimised INA profile
and axial guidance
Sealed
D = 35 – 110 mm
NUTR
With optimised INA profile
and labyrinth seal
000A42BE000A42BE
PWTR
With optimised INA profile
and seal 2RS
000A42C7000A42C7
medias uhttps://www.schaeffler.de/std/1E21
Main
dimensions
Basic load ratings Fatigue
limit
load
Speed Mass Designation Dimensions
D d B dyn.
Cr w
stat.
C0r w
dyn.
Fr per
stat.
F0r per
Cur w n D G m u1398|1.12
u1399|1.13
u1384
C d 2 r r1
N N N N N min–1 g min. min.
35 15 19 15 300 18 700 8 500 16 800 2 430 6 500 99 NUTR15 18 20 0,6 0,3
15 19 12 600 14 600 10 700 14 600 1 760 6 000 99 PWTR15-2RS-XL 18 20 0,6 0,3
40 17 21 18 700 24 900 13 000 24 900 3 150 5 500 147 NUTR17 20 22 1 0,5
17 21 14 300 17 900 16 500 17 900 2 160 5 000 147 PWTR17-2RS-XL 20 22 1 0,5
42 15 19 18 300 24 300 24 300 24 300 3 100 6 500 158 NUTR1542 18 20 0,6 0,3
15 19 14 700 16 200 16 200 16 200 2 140 6 000 158 PWTR1542-2RS-XL 18 20 0,6 0,3
47 17 21 21 600 30 500 30 500 30 500 3 850 5 500 220 NUTR1747 20 22 1 0,5
17 21 15 900 18 400 18 400 18 400 2 440 5 000 220 PWTR1747-2RS-XL 20 22 1 0,5
20 25 28 500 37 500 16 200 32 500 4 850 4 200 245 NUTR20 24 27 1 0,5
20 25 24 500 30 500 20 700 30 500 3 750 3 800 245 PWTR20-2RS-XL 24 27 1 0,5
52 20 25 32 000 44 000 38 000 44 000 5 700 4 200 321 NUTR2052 24 27 1 0,5
20 25 27 000 35 000 31 000 35 000 4 250 3 800 321 PWTR2052-2RS-XL 24 27 1 0,5
25 25 29 000 40 500 17 100 34 000 5 300 4 200 281 NUTR25 24 31 1 0,5
25 25 25 000 33 000 21 800 33 000 4 100 3 800 281 PWTR25-2RS-XL 24 31 1 0,5
62 25 25 35 500 54 000 54 000 54 000 6 900 4 200 450 NUTR2562 24 31 1 0,5
25 25 30 000 42 500 42 500 42 500 5 200 3 800 450 PWTR2562-2RS-XL 24 31 1 0,5
30 29 40 000 55 000 23 400 46 000 7 300 2 600 465 NUTR30 28 38 1 0,5
30 29 35 000 45 500 29 000 45 500 5 800 2 200 465 PWTR30-2RS-XL 28 38 1 0,5https://www.schaeffler.de/std/1D65
r Yoke type roller bearing track rollers with optimised INA profile and axial guidance, sealed
Yoke type rollerbearingtrack rollers withoptimisedINAprofile andaxial guidance,sealed
Yoke type roller
bearing track rollers
With optimised INA profile
and axial guidance
Sealed
D = 35 – 110 mm
NUTR
With optimised INA profile
and labyrinth seal
000A42BE000A42BE
PWTR
With optimised INA profile
and seal 2RS
000A42C7000A42C7
medias uhttps://www.schaeffler.de/std/1E21
Main
dimensions
Basic load ratings Fatigue
limit
load
Speed Mass Designation Dimensions
D d B dyn.
Cr w
stat.
C0r w
dyn.
Fr per
stat.
F0r per
Cur w n D G m u1398|1.12
u1399|1.13
u1384
C d 2 r r1
N N N N N min–1 g min. min.
35 15 19 15 300 18 700 8 500 16 800 2 430 6 500 99 NUTR15 18 20 0,6 0,3
15 19 12 600 14 600 10 700 14 600 1 760 6 000 99 PWTR15-2RS-XL 18 20 0,6 0,3
40 17 21 18 700 24 900 13 000 24 900 3 150 5 500 147 NUTR17 20 22 1 0,5
17 21 14 300 17 900 16 500 17 900 2 160 5 000 147 PWTR17-2RS-XL 20 22 1 0,5
42 15 19 18 300 24 300 24 300 24 300 3 100 6 500 158 NUTR1542 18 20 0,6 0,3
15 19 14 700 16 200 16 200 16 200 2 140 6 000 158 PWTR1542-2RS-XL 18 20 0,6 0,3
47 17 21 21 600 30 500 30 500 30 500 3 850 5 500 220 NUTR1747 20 22 1 0,5
17 21 15 900 18 400 18 400 18 400 2 440 5 000 220 PWTR1747-2RS-XL 20 22 1 0,5
20 25 28 500 37 500 16 200 32 500 4 850 4 200 245 NUTR20 24 27 1 0,5
20 25 24 500 30 500 20 700 30 500 3 750 3 800 245 PWTR20-2RS-XL 24 27 1 0,5
52 20 25 32 000 44 000 38 000 44 000 5 700 4 200 321 NUTR2052 24 27 1 0,5
20 25 27 000 35 000 31 000 35 000 4 250 3 800 321 PWTR2052-2RS-XL 24 27 1 0,5
25 25 29 000 40 500 17 100 34 000 5 300 4 200 281 NUTR25 24 31 1 0,5
25 25 25 000 33 000 21 800 33 000 4 100 3 800 281 PWTR25-2RS-XL 24 31 1 0,5
62 25 25 35 500 54 000 54 000 54 000 6 900 4 200 450 NUTR2562 24 31 1 0,5
25 25 30 000 42 500 42 500 42 500 5 200 3 800 450 PWTR2562-2RS-XL 24 31 1 0,5
30 29 40 000 55 000 23 400 46 000 7 300 2 600 465 NUTR30 28 38 1 0,5
30 29 35 000 45 500 29 000 45 500 5 800 2 200 465 PWTR30-2RS-XL 28 38 1 0,5https://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1421
D = 35 – 110 mm r
medias uhttps://www.schaeffler.de/std/1E22
Main
dimensions
Basic load ratings Fatigue
limit
load
Speed Mass Designation Dimensions
D d B dyn.
C r w
stat.
C0r w
dyn.
Fr per
stat.
F0r per
Cur w nD G m u1398|1.12
u1399|1.13
u1384
C d2 r r1
N N N N N min –1 g min. min.
72 30 29 48 000 70 000 68 000 70 000 9 200 2 600 697 NUTR3072 28 38 1 0,5
30 29 41 000 56 000 54 000 56 000 7 200 2 200 697 PWTR3072-2RS-XL 28 38 1 0,5
35 29 45 000 65 000 31 500 63 000 8 700 2 100 630 NUTR35 28 44 1,1 0,6
35 29 38 500 54 000 39 000 54 000 6 900 1 800 630 PWTR35-2RS-XL 28 44 1,1 0,6
80 35 29 51 000 78 000 76 000 78 000 10 300 2 100 836 NUTR3580 28 44 1,1 0,6
35 29 43 500 63 000 59 000 63 000 8 100 1 800 836 PWTR3580-2RS-XL 28 44 1,1 0,6
40 32 56 000 80 000 31 000 60 000 11 000 1 600 816 NUTR40 30 50,5 1,1 0,6
40 32 45 000 61 000 39 500 61 000 7 900 1 500 816 PWTR40-2RS-XL 30 50,5 1,1 0,6
85 45 32 56 000 83 000 32 000 62 000 11 500 1 400 883 NUTR45 30 55,2 1,1 0,6
45 32 45 500 63 000 41 000 63 000 8 200 1 300 883 PWTR45-2RS-XL 30 55,2 1,1 0,6
90 40 32 66 000 101 000 84 000 101 000 13 900 1 600 1 129 NUTR4090 30 50,5 1,1 0,6
40 32 52 000 75 000 67 000 75 000 9 600 1 500 1 129 PWTR4090-2RS-XL 30 50,5 1,1 0,6
50 32 56 000 86 000 32 500 63 000 11 900 1 300 950 NUTR50 30 59,8 1,1 0,6
50 32 46 000 66 000 42 000 66 000 8 500 1 100 950 PWTR50-2RS-XL 30 59,8 1,1 0,6
100 45 32 72 000 115 000 106 000 115 000 15 800 1 400 1 396 NUTR45100 30 55,2 1,1 0,6
45 32 56 000 85 000 85 000 85 000 10 900 1 300 1 396 PWTR45100-2RS-XL 30 55,2 1,1 0,6
110 50 32 76 000 128 000 128 000 128 000 17 600 1 300 1 690 NUTR50110 30 59,8 1,1 0,6
50 32 59 000 94 000 94 000 94 000 12 100 1 100 1 690 PWTR50110-2RS-XL 30 59,8 1,1 0,6https://www.schaeffler.de/std/1D65
D = 35 – 110 mm r
medias uhttps://www.schaeffler.de/std/1E22
Main
dimensions
Basic load ratings Fatigue
limit
load
Speed Mass Designation Dimensions
D d B dyn.
C r w
stat.
C0r w
dyn.
Fr per
stat.
F0r per
Cur w nD G m u1398|1.12
u1399|1.13
u1384
C d2 r r1
N N N N N min –1 g min. min.
72 30 29 48 000 70 000 68 000 70 000 9 200 2 600 697 NUTR3072 28 38 1 0,5
30 29 41 000 56 000 54 000 56 000 7 200 2 200 697 PWTR3072-2RS-XL 28 38 1 0,5
35 29 45 000 65 000 31 500 63 000 8 700 2 100 630 NUTR35 28 44 1,1 0,6
35 29 38 500 54 000 39 000 54 000 6 900 1 800 630 PWTR35-2RS-XL 28 44 1,1 0,6
80 35 29 51 000 78 000 76 000 78 000 10 300 2 100 836 NUTR3580 28 44 1,1 0,6
35 29 43 500 63 000 59 000 63 000 8 100 1 800 836 PWTR3580-2RS-XL 28 44 1,1 0,6
40 32 56 000 80 000 31 000 60 000 11 000 1 600 816 NUTR40 30 50,5 1,1 0,6
40 32 45 000 61 000 39 500 61 000 7 900 1 500 816 PWTR40-2RS-XL 30 50,5 1,1 0,6
85 45 32 56 000 83 000 32 000 62 000 11 500 1 400 883 NUTR45 30 55,2 1,1 0,6
45 32 45 500 63 000 41 000 63 000 8 200 1 300 883 PWTR45-2RS-XL 30 55,2 1,1 0,6
90 40 32 66 000 101 000 84 000 101 000 13 900 1 600 1 129 NUTR4090 30 50,5 1,1 0,6
40 32 52 000 75 000 67 000 75 000 9 600 1 500 1 129 PWTR4090-2RS-XL 30 50,5 1,1 0,6
50 32 56 000 86 000 32 500 63 000 11 900 1 300 950 NUTR50 30 59,8 1,1 0,6
50 32 46 000 66 000 42 000 66 000 8 500 1 100 950 PWTR50-2RS-XL 30 59,8 1,1 0,6
100 45 32 72 000 115 000 106 000 115 000 15 800 1 400 1 396 NUTR45100 30 55,2 1,1 0,6
45 32 56 000 85 000 85 000 85 000 10 900 1 300 1 396 PWTR45100-2RS-XL 30 55,2 1,1 0,6
110 50 32 76 000 128 000 128 000 128 000 17 600 1 300 1 690 NUTR50110 30 59,8 1,1 0,6
50 32 59 000 94 000 94 000 94 000 12 100 1 100 1 690 PWTR50110-2RS-XL 30 59,8 1,1 0,6https://www.schaeffler.de/std/1D65
1422 HR 1
r Stud type needle roller bearing track rollers with axial guidance
Studtype needle rollerbearingtrack rollers withaxialguidance
Stud type needle roller bearing
track rollers
With axial guidance
Open or sealed
D = 16 – 32 mm
D
22 mm: KR (top: R = 500 mm);
KR..-PP (bottom: with optimised INA profile)
000A42D9000A42D9
medias uhttps://www.schaeffler.de/std/1E23
1) Drive fit lubrication nipples are supplied loose. Only these lubrication nipples should be used.
2) Nominal dimension for hexagonal socket.
3) Relubrication hole only on the flange-side end face with slot for countertensioning during fitting.
4) Hexagonal socket only on the flange-side end face. No relubrication facility.
Main dimensions Basic load ratings Fatigue
limit load
Speed Mass Designation Mass With
eccentric collar
Designation
D d1 B dyn. stat. Cur w nD G m u1398|1.12
u1399|1.13
m u1398|1.12
u1399|1.13
C r w C 0r w
h7 N N N min–1 g g
16 6 28 3 150 3 350 450 14 000 19 KR163) – –
6 28 3 150 3 350 450 14 000 18 KR16-PP3) 20 KRE16-PP3)
6 28 3 150 3 350 450 14 000 19 KR16-SK-PP4) – –
6 28 4 900 6 600 950 3 800 19 KRV16-PP3) – –
19 8 32 3 500 4 000 540 11 000 29 KR193) – –
8 32 3 500 4 000 540 11 000 29 KR19-PP3) 32 KRE19-PP3)
8 32 3 500 4 000 540 11 000 29 KR19-SK-PP4) – –
8 32 5 400 8 000 1 170 3 100 31 KRV19-PP3) – –
22 10 36 4 550 5 300 730 8 000 45 KR22 – –
10 36 4 550 5 300 730 8 000 43 KR22-PP 47 KRE22-PP
10 36 6 200 9 200 1 210 2 600 45 KRV22-PP – –
26 10 36 5 100 6 400 840 8 000 59 KR26 – –
10 36 5 100 6 400 840 8 000 57 KR26-PP 62 KRE26-PP
10 36 7 300 11 500 1 500 2 600 59 KRV26-PP – –
30 12 40 6 800 8 600 1 220 5 500 92 KR30 – –
12 40 6 800 8 600 1 220 5 500 88 KR30-PP 93 KRE30-PP
12 40 9 500 14 900 2 050 2 100 91 KRV30-PP – –
32 12 40 7 100 9 200 1 290 5 500 103 KR32 – –
12 40 7 100 9 200 1 290 5 500 98 KR32-PP 104 KRE32-PP
12 40 10 000 16 100 2 200 2 100 101 KRV32-PP – –https://www.schaeffler.de/std/1D65
r Stud type needle roller bearing track rollers with axial guidance
Studtype needle rollerbearingtrack rollers withaxialguidance
Stud type needle roller bearing
track rollers
With axial guidance
Open or sealed
D = 16 – 32 mm
D
22 mm: KR (top: R = 500 mm);
KR..-PP (bottom: with optimised INA profile)
000A42D9000A42D9
medias uhttps://www.schaeffler.de/std/1E23
1) Drive fit lubrication nipples are supplied loose. Only these lubrication nipples should be used.
2) Nominal dimension for hexagonal socket.
3) Relubrication hole only on the flange-side end face with slot for countertensioning during fitting.
4) Hexagonal socket only on the flange-side end face. No relubrication facility.
Main dimensions Basic load ratings Fatigue
limit load
Speed Mass Designation Mass With
eccentric collar
Designation
D d1 B dyn. stat. Cur w nD G m u1398|1.12
u1399|1.13
m u1398|1.12
u1399|1.13
C r w C 0r w
h7 N N N min–1 g g
16 6 28 3 150 3 350 450 14 000 19 KR163) – –
6 28 3 150 3 350 450 14 000 18 KR16-PP3) 20 KRE16-PP3)
6 28 3 150 3 350 450 14 000 19 KR16-SK-PP4) – –
6 28 4 900 6 600 950 3 800 19 KRV16-PP3) – –
19 8 32 3 500 4 000 540 11 000 29 KR193) – –
8 32 3 500 4 000 540 11 000 29 KR19-PP3) 32 KRE19-PP3)
8 32 3 500 4 000 540 11 000 29 KR19-SK-PP4) – –
8 32 5 400 8 000 1 170 3 100 31 KRV19-PP3) – –
22 10 36 4 550 5 300 730 8 000 45 KR22 – –
10 36 4 550 5 300 730 8 000 43 KR22-PP 47 KRE22-PP
10 36 6 200 9 200 1 210 2 600 45 KRV22-PP – –
26 10 36 5 100 6 400 840 8 000 59 KR26 – –
10 36 5 100 6 400 840 8 000 57 KR26-PP 62 KRE26-PP
10 36 7 300 11 500 1 500 2 600 59 KRV26-PP – –
30 12 40 6 800 8 600 1 220 5 500 92 KR30 – –
12 40 6 800 8 600 1 220 5 500 88 KR30-PP 93 KRE30-PP
12 40 9 500 14 900 2 050 2 100 91 KRV30-PP – –
32 12 40 7 100 9 200 1 290 5 500 103 KR32 – –
12 40 7 100 9 200 1 290 5 500 98 KR32-PP 104 KRE32-PP
12 40 10 000 16 100 2 200 2 100 101 KRV32-PP – –https://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1423
D = 16 – 32 mm r
D
22 mm: KRE..-PP, with optimised INA profile
000A42E2000A42E2
D
22 mm: KRV..-PP, with optimised INA profile
000A432E000A432E
Dimensions Drive fit
lubrication
nipple1)
Nut
tightening
torque
D B1 B2 B3 C C 1 r d 2 d3 G lG W 2) Eccentric collar MA
d e Be e
max. min. h9 Nm
16 12,2 16 – 11 0,6 0,15 12,5 – M6 8 – – – – NIPA1 3
12,2 16 – 11 0,6 0,15 12,5 – M6 8 – 9 7 0,5 NIPA1 3
12,2 16 – 11 0,6 0,15 12,5 – M6 8 4 – – – – 3
12,2 16 – 11 0,6 0,15 12,5 – M6 8 – – – – NIPA1 3
19 12,2 20 – 11 0,6 0,15 15 – M8 10 – – – – NIPA1 8
12,2 20 – 11 0,6 0,15 15 – M8 10 – 11 9 0,5 NIPA1 8
12,2 20 – 11 0,6 0,15 15 – M8 10 4 – – – – 8
12,2 20 – 11 0,6 0,15 15 – M8 10 – – – – NIPA1 8
22 13,2 23 – 12 0,6 0,3 17,5 – M101 12 5 – – – NIPA14,5 15
13,2 23 – 12 0,6 0,3 17,5 – M101 12 5 13 10 0,5 NIPA14,5 15
13,2 23 – 12 0,6 0,3 17,5 – M101 12 5 – – – NIPA14,5 15
26 13,2 23 – 12 0,6 0,3 17,5 – M101 12 5 – – – NIPA14,5 15
13,2 23 – 12 0,6 0,3 17,5 – M101 12 5 13 10 0,5 NIPA14,5 15
13,2 23 – 12 0,6 0,3 17,5 – M101 12 5 – – – NIPA14,5 15
30 15,2 25 6 14 0,6 0,6 23 3 M121,5 13 6 – – – NIPA14,5 22
15,2 25 6 14 0,6 0,6 23 3 M121,5 13 6 15 11 0,5 NIPA14,5 22
15,2 25 6 14 0,6 0,6 23 3 M121,5 13 6 – – – NIPA14,5 22
32 15,2 25 6 14 0,6 0,6 23 3 M121,5 13 6 – – – NIPA14,5 22
15,2 25 6 14 0,6 0,6 23 3 M121,5 13 6 15 11 0,5 NIPA14,5 22
15,2 25 6 14 0,6 0,6 23 3 M121,5 13 6 – – – NIPA14,5 22
KR16, KR19 (top)
KR16-PP, KR19-PP (KRV16-PP, KRV19-PP) (bottom)
KR16-SK-PP, KR19-SK-PP
000A4372000A4372
000A4385000A4385https://www.schaeffler.de/std/1D65
D = 16 – 32 mm r
D
22 mm: KRE..-PP, with optimised INA profile
000A42E2000A42E2
D
22 mm: KRV..-PP, with optimised INA profile
000A432E000A432E
Dimensions Drive fit
lubrication
nipple1)
Nut
tightening
torque
D B1 B2 B3 C C 1 r d 2 d3 G lG W 2) Eccentric collar MA
d e Be e
max. min. h9 Nm
16 12,2 16 – 11 0,6 0,15 12,5 – M6 8 – – – – NIPA1 3
12,2 16 – 11 0,6 0,15 12,5 – M6 8 – 9 7 0,5 NIPA1 3
12,2 16 – 11 0,6 0,15 12,5 – M6 8 4 – – – – 3
12,2 16 – 11 0,6 0,15 12,5 – M6 8 – – – – NIPA1 3
19 12,2 20 – 11 0,6 0,15 15 – M8 10 – – – – NIPA1 8
12,2 20 – 11 0,6 0,15 15 – M8 10 – 11 9 0,5 NIPA1 8
12,2 20 – 11 0,6 0,15 15 – M8 10 4 – – – – 8
12,2 20 – 11 0,6 0,15 15 – M8 10 – – – – NIPA1 8
22 13,2 23 – 12 0,6 0,3 17,5 – M101 12 5 – – – NIPA14,5 15
13,2 23 – 12 0,6 0,3 17,5 – M101 12 5 13 10 0,5 NIPA14,5 15
13,2 23 – 12 0,6 0,3 17,5 – M101 12 5 – – – NIPA14,5 15
26 13,2 23 – 12 0,6 0,3 17,5 – M101 12 5 – – – NIPA14,5 15
13,2 23 – 12 0,6 0,3 17,5 – M101 12 5 13 10 0,5 NIPA14,5 15
13,2 23 – 12 0,6 0,3 17,5 – M101 12 5 – – – NIPA14,5 15
30 15,2 25 6 14 0,6 0,6 23 3 M121,5 13 6 – – – NIPA14,5 22
15,2 25 6 14 0,6 0,6 23 3 M121,5 13 6 15 11 0,5 NIPA14,5 22
15,2 25 6 14 0,6 0,6 23 3 M121,5 13 6 – – – NIPA14,5 22
32 15,2 25 6 14 0,6 0,6 23 3 M121,5 13 6 – – – NIPA14,5 22
15,2 25 6 14 0,6 0,6 23 3 M121,5 13 6 15 11 0,5 NIPA14,5 22
15,2 25 6 14 0,6 0,6 23 3 M121,5 13 6 – – – NIPA14,5 22
KR16, KR19 (top)
KR16-PP, KR19-PP (KRV16-PP, KRV19-PP) (bottom)
KR16-SK-PP, KR19-SK-PP
000A4372000A4372
000A4385000A4385https://www.schaeffler.de/std/1D65
1424 HR 1
r Stud type needle roller bearing track rollers with axial guidance
Studtype needle rollerbearingtrack rollers withaxialguidance
Stud type needle roller bearing
track rollers
With axial guidance
Open or sealed
D = 35 – 90 mm
KR (top: R = 500 mm);
KR..-PP (bottom: with optimised INA profile)
000A42D9000A42D9
medias uhttps://www.schaeffler.de/std/1E24
1) Drive fit lubrication nipples are supplied loose. Only these lubrication nipples should be used.
2) Nominal dimension for hexagonal socket.
Suitable central lubrication adapter for connection to a central lubrication system u1393.
Main dimensions Basic load ratings Fatigue
limit load
Speed Mass Designation Mass With
eccentric collar
Designation
D d1 B dyn. stat. Cur w nD G m u1398|1.12
u1399|1.13
m u1398|1.12
u1399|1.13
C r w C 0r w
h7 N N N min–1 g g
35 16 52 9 700 14 300 1 830 3 600 173 KR35 – –
16 52 9 700 14 300 1 830 3 600 164 KR35-PP 177 KRE35-PP
16 52 12 600 23 100 3 200 1 600 166 KRV35-PP – –
40 18 58 10 900 15 800 2 090 2 900 247 KR40 – –
18 58 10 900 15 800 2 090 2 900 239 KR40-PP 255 KRE40-PP
18 58 14 700 26 500 3 500 1 400 247 KRV40-PP – –
47 20 66 15 400 26 000 3 400 2 400 381 KR47-PP 400 KRE47-PP
20 66 20 300 42 000 5 900 1 300 390 KRV47-PP – –
52 20 66 16 600 29 000 3 800 2 400 454 KR52-PP 473 KRE52-PP
20 66 22 300 48 000 6 700 1 300 463 KRV52-PP – –
62 24 80 26 000 48 000 6 800 1 900 770 KR62-PP 789 KRE62-PP
24 80 33 500 75 000 11 200 1 100 787 KRV62-PP – –
72 24 80 28 000 53 000 7 200 1 900 1 010 KR72-PP 1 038 KRE72-PP
24 80 36 500 85 000 12 600 1 100 1 027 KRV72-PP – –
80 30 100 38 500 77 000 11 000 1 300 1 608 KR80-PP 1 665 KRE80-PP
30 100 48 500 117 000 17 400 850 1 636 KRV80-PP – –
90 30 100 40 500 83 000 11 700 1 300 1 975 KR90-PP 2 032 KRE90-PP
30 100 52 000 129 000 19 000 850 2 003 KRV90-PP – –https://www.schaeffler.de/std/1D65
r Stud type needle roller bearing track rollers with axial guidance
Studtype needle rollerbearingtrack rollers withaxialguidance
Stud type needle roller bearing
track rollers
With axial guidance
Open or sealed
D = 35 – 90 mm
KR (top: R = 500 mm);
KR..-PP (bottom: with optimised INA profile)
000A42D9000A42D9
medias uhttps://www.schaeffler.de/std/1E24
1) Drive fit lubrication nipples are supplied loose. Only these lubrication nipples should be used.
2) Nominal dimension for hexagonal socket.
Suitable central lubrication adapter for connection to a central lubrication system u1393.
Main dimensions Basic load ratings Fatigue
limit load
Speed Mass Designation Mass With
eccentric collar
Designation
D d1 B dyn. stat. Cur w nD G m u1398|1.12
u1399|1.13
m u1398|1.12
u1399|1.13
C r w C 0r w
h7 N N N min–1 g g
35 16 52 9 700 14 300 1 830 3 600 173 KR35 – –
16 52 9 700 14 300 1 830 3 600 164 KR35-PP 177 KRE35-PP
16 52 12 600 23 100 3 200 1 600 166 KRV35-PP – –
40 18 58 10 900 15 800 2 090 2 900 247 KR40 – –
18 58 10 900 15 800 2 090 2 900 239 KR40-PP 255 KRE40-PP
18 58 14 700 26 500 3 500 1 400 247 KRV40-PP – –
47 20 66 15 400 26 000 3 400 2 400 381 KR47-PP 400 KRE47-PP
20 66 20 300 42 000 5 900 1 300 390 KRV47-PP – –
52 20 66 16 600 29 000 3 800 2 400 454 KR52-PP 473 KRE52-PP
20 66 22 300 48 000 6 700 1 300 463 KRV52-PP – –
62 24 80 26 000 48 000 6 800 1 900 770 KR62-PP 789 KRE62-PP
24 80 33 500 75 000 11 200 1 100 787 KRV62-PP – –
72 24 80 28 000 53 000 7 200 1 900 1 010 KR72-PP 1 038 KRE72-PP
24 80 36 500 85 000 12 600 1 100 1 027 KRV72-PP – –
80 30 100 38 500 77 000 11 000 1 300 1 608 KR80-PP 1 665 KRE80-PP
30 100 48 500 117 000 17 400 850 1 636 KRV80-PP – –
90 30 100 40 500 83 000 11 700 1 300 1 975 KR90-PP 2 032 KRE90-PP
30 100 52 000 129 000 19 000 850 2 003 KRV90-PP – –https://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1425
D = 35 – 90 mm r
KRE..-PP, with optimised INA profile
000A42E2000A42E2
KRV..-PP, with optimised INA profile
000A432E000A432E
Dimensions Drive fit
lubrication
nipple1)
Nut
tightening
torque
D B1 B2 B3 C C 1 r d2 d 3 G l G W2) Eccentric collar M A
de Be e
max. min. h9 Nm
35 19,6 32,5 8 18 0,8 0,6 27,6 3 M161,5 17 8 – – – NIPA27,5 58
19,6 32,5 8 18 0,8 0,6 27,6 3 M161,5 17 8 20 14 1 NIPA27,5 58
19,6 32,5 8 18 0,8 0,6 27,6 3 M161,5 17 8 – – – NIPA27,5 58
40 21,6 36,5 8 20 0,8 1 31,5 3 M181,5 19 8 – – – NIPA27,5 87
21,6 36,5 8 20 0,8 1 31,5 3 M181,5 19 8 22 16 1 NIPA27,5 87
21,6 36,5 8 20 0,8 1 31,5 3 M181,5 19 8 – – – NIPA27,5 87
47 25,6 40,5 9 24 0,8 1 36,5 4 M201,5 21 10 24 18 1 NIPA27,5 120
25,6 40,5 9 24 0,8 1 36,5 4 M201,5 21 10 – – – NIPA27,5 120
52 25,6 40,5 9 24 0,8 1 36,5 4 M201,5 21 10 24 18 1 NIPA27,5 120
25,6 40,5 9 24 0,8 1 36,5 4 M201,5 21 10 – – – NIPA27,5 120
62 30,6 49,5 11 29 0,8 1 44 4 M241,5 25 14 28 22 1 NIPA39,5 220
30,6 49,5 11 29 0,8 1 44 4 M241,5 25 14 – – – NIPA39,5 220
72 30,6 49,5 11 29 0,8 1,1 44 4 M241,5 25 14 28 22 1 NIPA39,5 220
30,6 49,5 11 29 0,8 1,1 44 4 M241,5 25 14 – – – NIPA39,5 220
80 37 63 15 35 1 1,1 53 4 M301,5 32 14 35 29 1,5 NIPA39,5 450
37 63 15 35 1 1,1 53 4 M301,5 32 14 – – – NIPA39,5 450
90 37 63 15 35 1 1,1 53 4 M301,5 32 14 35 29 1,5 NIPA39,5 450
37 63 15 35 1 1,1 53 4 M301,5 32 14 – – – NIPA39,5 450https://www.schaeffler.de/std/1D65
D = 35 – 90 mm r
KRE..-PP, with optimised INA profile
000A42E2000A42E2
KRV..-PP, with optimised INA profile
000A432E000A432E
Dimensions Drive fit
lubrication
nipple1)
Nut
tightening
torque
D B1 B2 B3 C C 1 r d2 d 3 G l G W2) Eccentric collar M A
de Be e
max. min. h9 Nm
35 19,6 32,5 8 18 0,8 0,6 27,6 3 M161,5 17 8 – – – NIPA27,5 58
19,6 32,5 8 18 0,8 0,6 27,6 3 M161,5 17 8 20 14 1 NIPA27,5 58
19,6 32,5 8 18 0,8 0,6 27,6 3 M161,5 17 8 – – – NIPA27,5 58
40 21,6 36,5 8 20 0,8 1 31,5 3 M181,5 19 8 – – – NIPA27,5 87
21,6 36,5 8 20 0,8 1 31,5 3 M181,5 19 8 22 16 1 NIPA27,5 87
21,6 36,5 8 20 0,8 1 31,5 3 M181,5 19 8 – – – NIPA27,5 87
47 25,6 40,5 9 24 0,8 1 36,5 4 M201,5 21 10 24 18 1 NIPA27,5 120
25,6 40,5 9 24 0,8 1 36,5 4 M201,5 21 10 – – – NIPA27,5 120
52 25,6 40,5 9 24 0,8 1 36,5 4 M201,5 21 10 24 18 1 NIPA27,5 120
25,6 40,5 9 24 0,8 1 36,5 4 M201,5 21 10 – – – NIPA27,5 120
62 30,6 49,5 11 29 0,8 1 44 4 M241,5 25 14 28 22 1 NIPA39,5 220
30,6 49,5 11 29 0,8 1 44 4 M241,5 25 14 – – – NIPA39,5 220
72 30,6 49,5 11 29 0,8 1,1 44 4 M241,5 25 14 28 22 1 NIPA39,5 220
30,6 49,5 11 29 0,8 1,1 44 4 M241,5 25 14 – – – NIPA39,5 220
80 37 63 15 35 1 1,1 53 4 M301,5 32 14 35 29 1,5 NIPA39,5 450
37 63 15 35 1 1,1 53 4 M301,5 32 14 – – – NIPA39,5 450
90 37 63 15 35 1 1,1 53 4 M301,5 32 14 35 29 1,5 NIPA39,5 450
37 63 15 35 1 1,1 53 4 M301,5 32 14 – – – NIPA39,5 450https://www.schaeffler.de/std/1D65
1426 HR 1
r Stud type cylindrical roller bearing track rollers with axial guidance
Studtype cylindrical rollerbearingtrack rollers withaxialguidance
Stud type cylindrical roller bearing
track rollers
With axial guidance
D = 35 – 90 mm
NUKR, with optimised INA profile
000A43A0000A43A0
medias uhttps://www.schaeffler.de/std/1E25
1) Drive fit lubrication nipples are supplied loose. Only these lubrication nipples should be used.
2) Nominal dimension for hexagonal socket.
Suitable central lubrication adapter for connection to a central lubrication system u1393.
Main
dimensions
Basic load ratings Fatigue
limit
load
Speed Mass Without
eccentric collar
Designation
Mass With
eccentric collar
Designation
D d1 B dyn. stat. dyn. stat. C ur w n D G m u1398|1.12
u1399|1.13
u1384
m u1398|1.12
u1399|1.13
u1384
Cr w C 0r w Fr per F0r per
h7 N N N N N min–1 g g
35 16 52 15 300 18 700 8 500 16 800 2 430 6 500 164 NUKR35 – –
16 52 15 300 18 700 8 500 16 800 2 430 6 500 – – 177 NUKRE35
16 52 12 600 14 600 10 700 14 600 1 760 6 000 164 PWKR35-2RS-XL – –
16 52 12 600 14 600 10 700 14 600 1 760 6 000 – – 177 PWKRE35-2RS-XL
40 18 58 18 700 24 900 13 000 24 900 3 150 5 500 242 NUKR40 – –
18 58 18 700 24 900 13 000 24 900 3 150 5 500 – – 258 NUKRE40
18 58 14 300 17 900 16 500 17 900 2 160 5 000 242 PWKR40-2RS-XL – –
18 58 14 300 17 900 16 500 17 900 2 160 5 000 – – 258 PWKRE40-2RS-XL
47 20 66 28 500 37 500 16 200 32 500 4 850 4 200 380 NUKR47 400 NUKRE47
20 66 24 500 30 500 20 700 30 500 3 750 3 800 380 PWKR47-2RS-XL 400 PWKRE47-2RS-XL
52 20 66 29 000 40 500 17 100 34 000 5 300 4 200 450 NUKR52 470 NUKRE52
20 66 25 000 33 000 21 800 33 000 4 100 3 800 450 PWKR52-2RS-XL 470 PWKRE52-2RS-XL
62 24 80 40 000 55 000 23 400 46 000 7 300 2 600 795 NUKR62 824 NUKRE62
24 80 35 000 45 500 29 000 45 500 5 800 2 200 795 PWKR62-2RS-XL 824 PWKRE62-2RS-XL
72 24 80 45 000 65 000 31 500 63 000 8 700 2 600 1 020 NUKR72 1 050 NUKRE72
24 80 38 500 54 000 39 000 54 000 6 900 2 200 1 020 PWKR72-2RS-XL 1 050 PWKRE72-2RS-XL
80 30 100 69 000 104 000 47 500 95 000 14 100 1 800 1 600 NUKR80 1 670 NUKRE80
30 100 56 000 79 000 60 000 79 000 10 600 1 800 1 600 PWKR80-2RS-XL 1 670 PWKRE80-2RS-XL
90 30 100 78 000 123 000 76 000 123 000 16 700 1 800 1 960 NUKR90 2 020 NUKRE90
30 100 62 000 92 000 92 000 92 000 12 200 1 800 1 960 PWKR90-2RS-XL 2 020 PWKRE90-2RS-XLhttps://www.schaeffler.de/std/1D65
r Stud type cylindrical roller bearing track rollers with axial guidance
Studtype cylindrical rollerbearingtrack rollers withaxialguidance
Stud type cylindrical roller bearing
track rollers
With axial guidance
D = 35 – 90 mm
NUKR, with optimised INA profile
000A43A0000A43A0
medias uhttps://www.schaeffler.de/std/1E25
1) Drive fit lubrication nipples are supplied loose. Only these lubrication nipples should be used.
2) Nominal dimension for hexagonal socket.
Suitable central lubrication adapter for connection to a central lubrication system u1393.
Main
dimensions
Basic load ratings Fatigue
limit
load
Speed Mass Without
eccentric collar
Designation
Mass With
eccentric collar
Designation
D d1 B dyn. stat. dyn. stat. C ur w n D G m u1398|1.12
u1399|1.13
u1384
m u1398|1.12
u1399|1.13
u1384
Cr w C 0r w Fr per F0r per
h7 N N N N N min–1 g g
35 16 52 15 300 18 700 8 500 16 800 2 430 6 500 164 NUKR35 – –
16 52 15 300 18 700 8 500 16 800 2 430 6 500 – – 177 NUKRE35
16 52 12 600 14 600 10 700 14 600 1 760 6 000 164 PWKR35-2RS-XL – –
16 52 12 600 14 600 10 700 14 600 1 760 6 000 – – 177 PWKRE35-2RS-XL
40 18 58 18 700 24 900 13 000 24 900 3 150 5 500 242 NUKR40 – –
18 58 18 700 24 900 13 000 24 900 3 150 5 500 – – 258 NUKRE40
18 58 14 300 17 900 16 500 17 900 2 160 5 000 242 PWKR40-2RS-XL – –
18 58 14 300 17 900 16 500 17 900 2 160 5 000 – – 258 PWKRE40-2RS-XL
47 20 66 28 500 37 500 16 200 32 500 4 850 4 200 380 NUKR47 400 NUKRE47
20 66 24 500 30 500 20 700 30 500 3 750 3 800 380 PWKR47-2RS-XL 400 PWKRE47-2RS-XL
52 20 66 29 000 40 500 17 100 34 000 5 300 4 200 450 NUKR52 470 NUKRE52
20 66 25 000 33 000 21 800 33 000 4 100 3 800 450 PWKR52-2RS-XL 470 PWKRE52-2RS-XL
62 24 80 40 000 55 000 23 400 46 000 7 300 2 600 795 NUKR62 824 NUKRE62
24 80 35 000 45 500 29 000 45 500 5 800 2 200 795 PWKR62-2RS-XL 824 PWKRE62-2RS-XL
72 24 80 45 000 65 000 31 500 63 000 8 700 2 600 1 020 NUKR72 1 050 NUKRE72
24 80 38 500 54 000 39 000 54 000 6 900 2 200 1 020 PWKR72-2RS-XL 1 050 PWKRE72-2RS-XL
80 30 100 69 000 104 000 47 500 95 000 14 100 1 800 1 600 NUKR80 1 670 NUKRE80
30 100 56 000 79 000 60 000 79 000 10 600 1 800 1 600 PWKR80-2RS-XL 1 670 PWKRE80-2RS-XL
90 30 100 78 000 123 000 76 000 123 000 16 700 1 800 1 960 NUKR90 2 020 NUKRE90
30 100 62 000 92 000 92 000 92 000 12 200 1 800 1 960 PWKR90-2RS-XL 2 020 PWKRE90-2RS-XLhttps://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1427
D = 35 – 90 mm r
NUKRE35/NUKRE40 (top)
PWKRE35-2RS/PWKRE40-2RS (bottom)
with optimised INA profile
000A43B2000A43B2
NUKRE (top)
PWKRE..-2RS (bottom)
with optimised INA profile
000A43C4000A43C4
Dimensions Drive fit
lubrication
nipple 1)
Nut
tightening
torque
D B1 B2 B3 C C 1 r d2 d3 G l G W2) Eccentric collar M A
de Be e
max. min. h9 Nm
35 19,6 32,5 7,8 18 0,8 0,6 20 3 M161,5 17 8 – – – NIPA27,5 58
22,6 29,5 – 18 3,8 0,6 27,6 – M161,5 17 8 20 12 1 NIPA27,5 58
19,6 32,5 7,8 18 0,8 0,6 20 3 M161,5 17 8 – – – NIPA27,5 58
22,6 29,5 – 18 3,8 0,6 27,6 – M161,5 17 8 20 12 1 NIPA27,5 58
40 21,6 36,5 8 20 0,8 1 22 3 M181,5 19 8 – – – NIPA27,5 87
24,6 33,5 – 20 3,8 1 30 – M181,5 19 8 22 14 1 NIPA27,5 87
21,6 36,5 8 20 0,8 1 22 3 M181,5 19 8 – – – NIPA27,5 87
24,6 33,5 – 20 3,8 1 30 – M181,5 19 8 22 14 1 NIPA27,5 87
47 25,6 40,5 9 24 0,8 1 27 4 M201,5 21 10 24 18 1 NIPA27,5 120
25,6 40,5 9 24 0,8 1 27 4 M201,5 21 10 24 18 1 NIPA27,5 120
52 25,6 40,5 9 24 0,8 1 31 4 M201,5 21 10 24 18 1 NIPA27,5 120
25,6 40,5 9 24 0,8 1 31 4 M201,5 21 10 24 18 1 NIPA27,5 120
62 30,6 49,5 11 28 1,3 1 38 4 M241,5 25 14 28 22 1 NIPA39,5 220
30,6 49,5 11 28 1,3 1 38 4 M241,5 25 14 28 22 1 NIPA39,5 220
72 30,6 49,5 11 28 1,3 1,1 44 4 M241,5 25 14 28 22 1 NIPA39,5 220
30,6 49,5 11 28 1,3 1,1 44 4 M241,5 25 14 28 22 1 NIPA39,5 220
80 37 63 15 35 1 1,1 47 4 M301,5 32 14 35 29 1,5 NIPA39,5 450
37 63 15 35 1 1,1 47 4 M301,5 32 14 35 29 1,5 NIPA39,5 450
90 37 63 15 35 1 1,1 47 4 M301,5 32 14 35 29 1,5 NIPA39,5 450
37 63 15 35 1 1,1 47 4 M301,5 32 14 35 29 1,5 NIPA39,5 450
PWKR..-2RS, with optimised INA profile
000A43A9000A43A9https://www.schaeffler.de/std/1D65
D = 35 – 90 mm r
NUKRE35/NUKRE40 (top)
PWKRE35-2RS/PWKRE40-2RS (bottom)
with optimised INA profile
000A43B2000A43B2
NUKRE (top)
PWKRE..-2RS (bottom)
with optimised INA profile
000A43C4000A43C4
Dimensions Drive fit
lubrication
nipple 1)
Nut
tightening
torque
D B1 B2 B3 C C 1 r d2 d3 G l G W2) Eccentric collar M A
de Be e
max. min. h9 Nm
35 19,6 32,5 7,8 18 0,8 0,6 20 3 M161,5 17 8 – – – NIPA27,5 58
22,6 29,5 – 18 3,8 0,6 27,6 – M161,5 17 8 20 12 1 NIPA27,5 58
19,6 32,5 7,8 18 0,8 0,6 20 3 M161,5 17 8 – – – NIPA27,5 58
22,6 29,5 – 18 3,8 0,6 27,6 – M161,5 17 8 20 12 1 NIPA27,5 58
40 21,6 36,5 8 20 0,8 1 22 3 M181,5 19 8 – – – NIPA27,5 87
24,6 33,5 – 20 3,8 1 30 – M181,5 19 8 22 14 1 NIPA27,5 87
21,6 36,5 8 20 0,8 1 22 3 M181,5 19 8 – – – NIPA27,5 87
24,6 33,5 – 20 3,8 1 30 – M181,5 19 8 22 14 1 NIPA27,5 87
47 25,6 40,5 9 24 0,8 1 27 4 M201,5 21 10 24 18 1 NIPA27,5 120
25,6 40,5 9 24 0,8 1 27 4 M201,5 21 10 24 18 1 NIPA27,5 120
52 25,6 40,5 9 24 0,8 1 31 4 M201,5 21 10 24 18 1 NIPA27,5 120
25,6 40,5 9 24 0,8 1 31 4 M201,5 21 10 24 18 1 NIPA27,5 120
62 30,6 49,5 11 28 1,3 1 38 4 M241,5 25 14 28 22 1 NIPA39,5 220
30,6 49,5 11 28 1,3 1 38 4 M241,5 25 14 28 22 1 NIPA39,5 220
72 30,6 49,5 11 28 1,3 1,1 44 4 M241,5 25 14 28 22 1 NIPA39,5 220
30,6 49,5 11 28 1,3 1,1 44 4 M241,5 25 14 28 22 1 NIPA39,5 220
80 37 63 15 35 1 1,1 47 4 M301,5 32 14 35 29 1,5 NIPA39,5 450
37 63 15 35 1 1,1 47 4 M301,5 32 14 35 29 1,5 NIPA39,5 450
90 37 63 15 35 1 1,1 47 4 M301,5 32 14 35 29 1,5 NIPA39,5 450
37 63 15 35 1 1,1 47 4 M301,5 32 14 35 29 1,5 NIPA39,5 450
PWKR..-2RS, with optimised INA profile
000A43A9000A43A9https://www.schaeffler.de/std/1D65
1428 HR 1
Bearing design
Track rollers | Yoke type ball bearing track rollers, stud type ball bearing track rollers |
2 Yoke type ball bearing
track rollers, stud type
ball bearing track rollers
Ball bearing track rollers:
■ are ready-to-fit, single or double row rolling bearings based
on deep groove or angular contact ball bearings u1429|q2
to u1431|q6
■ are supplied with or without a stud
(designs without a stud are mounted on shafts or studs)
■ have particularly thick-walled outer rings with a crowned or
cylindrical outside surface u1428|2.1
■ can support high radial loads u1431|2.2
■ tolerate axial loads which are due to small misalignment defects,
skewed running or temporary contact running impacts
■ are sealed on both sides u1432|2.5
■ are also available with a plastic tyre on the outer ring
for low-noise running u1428|2.1, u1431|q6
■ are not mounted in a housing bore, but are supported on a flat
mating track u1428|q1 and u1430|q5
■ can be adjusted to the mating track in the design with the eccentric
collar, thus permitting, for example, larger manufacturing tolerances
in the adjacent construction.
2.1 Bearing design
✎ Design variants The bearings are available as:
■ yoke type track rollers (single or double row) u1429|q2
■ stud type track rollers (single or double row) u1430|q3
to u1430|q5
■ track rollers with plastic outer tyre u1431|q6.
Ball bearing track rollers (general)
✎ Characterised
by a thick-walled outer ring
Ball bearing track rollers are self-retaining, single or double row ball
bearings with particularly thick-walled outer rings. In addition to high
radial forces, these bearings can also support axial forces in both direc-
tions. Ball bearing track rollers are available for various applications
with an inner ring, with a stud and with a plastic tyre on the outer ring
u1429|q2 to u1431|q6.
q1
Double row stud type track roller
supported on a flat mating track
Mating trackhttps://www.schaeffler.de/std/1D65
Bearing design
Track rollers | Yoke type ball bearing track rollers, stud type ball bearing track rollers |
2 Yoke type ball bearing
track rollers, stud type
ball bearing track rollers
Ball bearing track rollers:
■ are ready-to-fit, single or double row rolling bearings based
on deep groove or angular contact ball bearings u1429|q2
to u1431|q6
■ are supplied with or without a stud
(designs without a stud are mounted on shafts or studs)
■ have particularly thick-walled outer rings with a crowned or
cylindrical outside surface u1428|2.1
■ can support high radial loads u1431|2.2
■ tolerate axial loads which are due to small misalignment defects,
skewed running or temporary contact running impacts
■ are sealed on both sides u1432|2.5
■ are also available with a plastic tyre on the outer ring
for low-noise running u1428|2.1, u1431|q6
■ are not mounted in a housing bore, but are supported on a flat
mating track u1428|q1 and u1430|q5
■ can be adjusted to the mating track in the design with the eccentric
collar, thus permitting, for example, larger manufacturing tolerances
in the adjacent construction.
2.1 Bearing design
✎ Design variants The bearings are available as:
■ yoke type track rollers (single or double row) u1429|q2
■ stud type track rollers (single or double row) u1430|q3
to u1430|q5
■ track rollers with plastic outer tyre u1431|q6.
Ball bearing track rollers (general)
✎ Characterised
by a thick-walled outer ring
Ball bearing track rollers are self-retaining, single or double row ball
bearings with particularly thick-walled outer rings. In addition to high
radial forces, these bearings can also support axial forces in both direc-
tions. Ball bearing track rollers are available for various applications
with an inner ring, with a stud and with a plastic tyre on the outer ring
u1429|q2 to u1431|q6.
q1
Double row stud type track roller
supported on a flat mating track
Mating trackhttps://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1429
Bearing design✎ Applications Typical areas of application of these products include cam gears,
bed ways, conveying equipment and linear guidance systems.
Outside surface profile of the outer ring
✎ Spherical or cylindrical
outside surface
Yoke type track rollers and stud type track rollers with a crowned outside
surface have a radius of curvature of R = 500 mm. Yoke type track rollers
with a cylindrical outside surface have the suffix X u1435|e3.
✎ The crowned outside
surface prevents edge
stresses under skewing
Yoke type track rollers with a crowned outside surface are used where
skewing can occur relative to the mating track. The crowned design
reduces the risk of edge stresses u1391.
Corrosion protection by Corrotect
✎ Special coating Corrotect For applications requiring increased protection against corrosion,
yoke type track rollers with the special Cr(VI)-free coating Corrotect
are available by agreement as a special design; description of
Corrotect u1389.
Yoke type track rollers
✎ Comparable in design
to deep groove or
angular contact ball bearings
Yoke type track rollers are similar in construction to deep groove or angular
contact ball bearings and are mounted on shafts or studs u1429|q2.
They have outer rings with a crowned or cylindrical outside surface,
inner rings and ball and cage assemblies with plastic cages. Yoke type
track rollers LR6, LR60 and LR2 are single row, LR50, LR52 and LR53 are
double row.
Double row design
✎ LR52, LR53 While the outer dimensions remain unchanged, the internal construction
of yoke type track rollers LR52 and LR53 has been optimised. This has
brought about an increase in load carrying capacity and speed in continu-
ous operation, and in grease lubrication nD G. These yoke type track rollers
are X-life bearings u1431.
Stud type track rollers
✎ Heavy-section
roller stud, with or
without eccentric collar
Stud type track rollers have outer rings with a crowned outside surface,
heavy-section roller studs and ball and cage assemblies with plastic cages
u1430|q3 and u1430|q4. The yoke type track rollers are available
with and without an eccentric collar.
For ease of mounting, the roller stud is produced in one of the following
designs:
■ with a threaded hole and mounting slot u1430|q3
■ with an external thread and hexagonal socket u1430|q4
■ with an external thread and flat areas on both sides u1430|q5.
Track rollers ZL2 are single row, ZL52, ZLE52 and KR52 are double row.
✎ Design
without eccentric collar
Stud type track rollers without an eccentric collar are suitable for appli-
cations where a defined requirement for adjustment of the outer ring
outside surface in relation to the mating track on the adjacent construction
is not present u1430|q3 and u1430|q4.
q2
Yoke type track rollers,
sealed on both sides
Fr = radial load
Fa = axial load
Single row, lip seals,
with radial sealing action
(LR6..-2RSR)
Double row, sealing shields
(LR52..-2Z)
000A67F6000A67F6https://www.schaeffler.de/std/1D65
Bearing design✎ Applications Typical areas of application of these products include cam gears,
bed ways, conveying equipment and linear guidance systems.
Outside surface profile of the outer ring
✎ Spherical or cylindrical
outside surface
Yoke type track rollers and stud type track rollers with a crowned outside
surface have a radius of curvature of R = 500 mm. Yoke type track rollers
with a cylindrical outside surface have the suffix X u1435|e3.
✎ The crowned outside
surface prevents edge
stresses under skewing
Yoke type track rollers with a crowned outside surface are used where
skewing can occur relative to the mating track. The crowned design
reduces the risk of edge stresses u1391.
Corrosion protection by Corrotect
✎ Special coating Corrotect For applications requiring increased protection against corrosion,
yoke type track rollers with the special Cr(VI)-free coating Corrotect
are available by agreement as a special design; description of
Corrotect u1389.
Yoke type track rollers
✎ Comparable in design
to deep groove or
angular contact ball bearings
Yoke type track rollers are similar in construction to deep groove or angular
contact ball bearings and are mounted on shafts or studs u1429|q2.
They have outer rings with a crowned or cylindrical outside surface,
inner rings and ball and cage assemblies with plastic cages. Yoke type
track rollers LR6, LR60 and LR2 are single row, LR50, LR52 and LR53 are
double row.
Double row design
✎ LR52, LR53 While the outer dimensions remain unchanged, the internal construction
of yoke type track rollers LR52 and LR53 has been optimised. This has
brought about an increase in load carrying capacity and speed in continu-
ous operation, and in grease lubrication nD G. These yoke type track rollers
are X-life bearings u1431.
Stud type track rollers
✎ Heavy-section
roller stud, with or
without eccentric collar
Stud type track rollers have outer rings with a crowned outside surface,
heavy-section roller studs and ball and cage assemblies with plastic cages
u1430|q3 and u1430|q4. The yoke type track rollers are available
with and without an eccentric collar.
For ease of mounting, the roller stud is produced in one of the following
designs:
■ with a threaded hole and mounting slot u1430|q3
■ with an external thread and hexagonal socket u1430|q4
■ with an external thread and flat areas on both sides u1430|q5.
Track rollers ZL2 are single row, ZL52, ZLE52 and KR52 are double row.
✎ Design
without eccentric collar
Stud type track rollers without an eccentric collar are suitable for appli-
cations where a defined requirement for adjustment of the outer ring
outside surface in relation to the mating track on the adjacent construction
is not present u1430|q3 and u1430|q4.
q2
Yoke type track rollers,
sealed on both sides
Fr = radial load
Fa = axial load
Single row, lip seals,
with radial sealing action
(LR6..-2RSR)
Double row, sealing shields
(LR52..-2Z)
000A67F6000A67F6https://www.schaeffler.de/std/1D65
1430 HR 1
Bearing design
Track rollers | Yoke type ball bearing track rollers, stud type ball bearing track rollers |
✎ Design
with eccentric collar
Stud type track rollers ZLE52 have an eccentric collar u1430|q5.
The eccentric collar can be used to adjust the outside surface of the outer
ring clearance-free against the mating track. This gives optimum geomet-
rical locking between the track roller and mating track. Furthermore, larger
manufacturing tolerances can be tolerated in the adjacent construction.
The load distribution when several stud type track rollers are used is also
more uniform. For countertensioning during fitting, this series has flat
areas on both sides of the roller stud. Threaded connections must be
provided on the two end faces for relubrication, dimensions u1446|r.
Track rollers with plastic outer tyre
✎ Suitable for low loads and
high demands
on low-noise running
Track rollers KLRU and KLRZ comprise single row deep groove ball bearings
with a shrink-fitted polyamide outer ring (PA) u1431|q6. Polyamide can
tolerate higher specific contact pressures than elastomer and is relatively
resistant to abrasion. These track rollers are mounted on shafts or studs
and are used where low loads are present and the bearings are required to
run particularly quietly.
q3
Stud type track rollers,
without eccentric collar,
short roller stud with threaded
hole, sealed on both sides
Fr = radial load
Fa = axial load
Single row, lip seal on stud side
plus sealing shield and cover
(ZL..-DRS)
Double row, lip seal on stud side
plus sealing shield and cover
(ZL52..-DRS)
000A67F7000A67F7
q4
Stud type track roller,
without eccentric collar,
long roller stud with external
thread, sealed on both sides
Fr = radial load
Fa = axial load
Double row, lip seals, with axial
sealing action (KR52..-2RS)
000A67F9000A67F9
q5
Stud type track roller,
with eccentric collar, long roller
stud with external thread,
sealed on both sides
Fr = radial load
Fa = axial load
Double row, sealing shields
(ZLE52..-2Z)
000A67FB000A67FBhttps://www.schaeffler.de/std/1D65
Bearing design
Track rollers | Yoke type ball bearing track rollers, stud type ball bearing track rollers |
✎ Design
with eccentric collar
Stud type track rollers ZLE52 have an eccentric collar u1430|q5.
The eccentric collar can be used to adjust the outside surface of the outer
ring clearance-free against the mating track. This gives optimum geomet-
rical locking between the track roller and mating track. Furthermore, larger
manufacturing tolerances can be tolerated in the adjacent construction.
The load distribution when several stud type track rollers are used is also
more uniform. For countertensioning during fitting, this series has flat
areas on both sides of the roller stud. Threaded connections must be
provided on the two end faces for relubrication, dimensions u1446|r.
Track rollers with plastic outer tyre
✎ Suitable for low loads and
high demands
on low-noise running
Track rollers KLRU and KLRZ comprise single row deep groove ball bearings
with a shrink-fitted polyamide outer ring (PA) u1431|q6. Polyamide can
tolerate higher specific contact pressures than elastomer and is relatively
resistant to abrasion. These track rollers are mounted on shafts or studs
and are used where low loads are present and the bearings are required to
run particularly quietly.
q3
Stud type track rollers,
without eccentric collar,
short roller stud with threaded
hole, sealed on both sides
Fr = radial load
Fa = axial load
Single row, lip seal on stud side
plus sealing shield and cover
(ZL..-DRS)
Double row, lip seal on stud side
plus sealing shield and cover
(ZL52..-DRS)
000A67F7000A67F7
q4
Stud type track roller,
without eccentric collar,
long roller stud with external
thread, sealed on both sides
Fr = radial load
Fa = axial load
Double row, lip seals, with axial
sealing action (KR52..-2RS)
000A67F9000A67F9
q5
Stud type track roller,
with eccentric collar, long roller
stud with external thread,
sealed on both sides
Fr = radial load
Fa = axial load
Double row, sealing shields
(ZLE52..-2Z)
000A67FB000A67FBhttps://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1431
Load carrying capacity
Outside surface profile of the outer ring
✎ Spherical or cylindrical
outside surface
Track rollers KLRU have an outer ring with a crowned outside surface.
The radius of curvature is indicated in the product table. Series KLRZ has
a cylindrical outside surface.
Maximum radial load
The maximum radial load is determined by the permissible contact
pressure; the values Fr per in the product tables must not be exceeded.
X-life premium quality
Track rollers LR52 and LR53, which have undergone comprehensive fur-
ther development, are supplied in the X-life design. These track rollers are
characterised by a longer rating life and operating life, due to higher basic
dynamic load ratings compared with standard track rollers.
This higher performance results from the use of state of the art manufac-
turing techniques and improved internal constructions. They lead to better
and more uniform surfaces and contact areas and thus optimised load
distribution in the bearing.
✎ Increased customer
benefits due to X-life
This opens up expanded design possibilities:
■ Under the same load and with an unchanged design envelope,
X-life bearings have a longer rating life. Maintenance intervals can be
extended
■ Conversely, an X-life bearing in the same design envelope and
with the same rating life can support higher loads
■ Where the rating life and load remain unchanged, X-life bearings allow
higher performance density, facilitating optimisation of the design
envelope and reductions in mass.
✎ Lower operating costs,
higher machine availability
In conclusion, these advantages improve the overall cost-efficiency
of the bearing position significantly and thus bring about a sustainable
increase in the efficiency of the machine and equipment.
✎ Suffix XL X-life track rollers include the suffix XL in the designation.
2.2 Load carrying capacity✎ Suitable for high radial
loads
The track rollers can support high radial loads as well as axial loads arising
from slight misalignment and skewed running.
Installation as track roller
✎ If used as a track roller,
the outer ring undergoes
elastic deformation
In the case of track rollers, the outer ring is supported on the mating track
at certain points and undergoes elastic deformation (oval deformation)
u1432|q7. Compared to rolling bearings supported in a housing bore,
track rollers therefore have:
■ a modified load distribution in the bearing (load is supported by fewer
rolling elements in the loaded zone). This is taken into consideration
by the reduced effective basic load ratings C r w and C0r w used in
the calculation of the rating life.
q6
Track rollers with plastic outer
tyre, sealed on both sides
Fr = radial load
Fa = axial load
Crowned outside surface,
sealing shields (KLRU..-2Z)
Cylindrical outside surface,
sealing shields (KLRZ..-2Z)
000A67FD000A67FDhttps://www.schaeffler.de/std/1D65
Load carrying capacity
Outside surface profile of the outer ring
✎ Spherical or cylindrical
outside surface
Track rollers KLRU have an outer ring with a crowned outside surface.
The radius of curvature is indicated in the product table. Series KLRZ has
a cylindrical outside surface.
Maximum radial load
The maximum radial load is determined by the permissible contact
pressure; the values Fr per in the product tables must not be exceeded.
X-life premium quality
Track rollers LR52 and LR53, which have undergone comprehensive fur-
ther development, are supplied in the X-life design. These track rollers are
characterised by a longer rating life and operating life, due to higher basic
dynamic load ratings compared with standard track rollers.
This higher performance results from the use of state of the art manufac-
turing techniques and improved internal constructions. They lead to better
and more uniform surfaces and contact areas and thus optimised load
distribution in the bearing.
✎ Increased customer
benefits due to X-life
This opens up expanded design possibilities:
■ Under the same load and with an unchanged design envelope,
X-life bearings have a longer rating life. Maintenance intervals can be
extended
■ Conversely, an X-life bearing in the same design envelope and
with the same rating life can support higher loads
■ Where the rating life and load remain unchanged, X-life bearings allow
higher performance density, facilitating optimisation of the design
envelope and reductions in mass.
✎ Lower operating costs,
higher machine availability
In conclusion, these advantages improve the overall cost-efficiency
of the bearing position significantly and thus bring about a sustainable
increase in the efficiency of the machine and equipment.
✎ Suffix XL X-life track rollers include the suffix XL in the designation.
2.2 Load carrying capacity✎ Suitable for high radial
loads
The track rollers can support high radial loads as well as axial loads arising
from slight misalignment and skewed running.
Installation as track roller
✎ If used as a track roller,
the outer ring undergoes
elastic deformation
In the case of track rollers, the outer ring is supported on the mating track
at certain points and undergoes elastic deformation (oval deformation)
u1432|q7. Compared to rolling bearings supported in a housing bore,
track rollers therefore have:
■ a modified load distribution in the bearing (load is supported by fewer
rolling elements in the loaded zone). This is taken into consideration
by the reduced effective basic load ratings C r w and C0r w used in
the calculation of the rating life.
q6
Track rollers with plastic outer
tyre, sealed on both sides
Fr = radial load
Fa = axial load
Crowned outside surface,
sealing shields (KLRU..-2Z)
Cylindrical outside surface,
sealing shields (KLRZ..-2Z)
000A67FD000A67FDhttps://www.schaeffler.de/std/1D65
1432 HR 1
Compensation of angular misalignments
Track rollers | Yoke type ball bearing track rollers, stud type ball bearing track rollers |
■ bending stresses and reverse bending strengths in the outer ring.
These are taken into consideration by the permissible effective
radial loads Fr per and F0r per. The bending stresses and reverse bending
strengths must not exceed the permissible strength values of
the material.
2.3 Compensation of angular misalignments
✎ Not suitable
for the compensation
of angular misalignments
Track rollers are not suitable for the compensation of angular misalign-
ments, but can tolerate small misalignments and slight skewed running;
for limits see chapter Yoke type roller bearing track rollers, stud type roller
bearing track rollers u1380
✎ Skewed running Skewed running leads to additional axial loading of the bearing and
to elastic axial slippage in rolling contact between the outer ring and
the mating track.
✎ Tilted running If tilting occurs during running, increased edge stresses occur,
especially in track rollers with a cylindrical outside surface of the outer
ring. Track rollers with a crowned outer ring are less sensitive to tilting
and should therefore be used in preference if tilting is expected.
2.4 Lubrication
✎ Greased using
a grease to GA13
The track rollers are greased using a lithium soap grease to GA13.
In the case of stud type track rollers, series ZLE52 can be lubricated via the
roller stud. Track rollers with a plastic outer tyre cannot be relubricated.
Suitable greases for relubrication u1392|e1.
✎ LR52, LR53 Double row track rollers are also greased using a lithium soap grease
to GA13. Due to the improved internal construction, less friction occurs
and less strain is placed on the lubricant. This leads to lower bearing
temperatures.
Two contact zones
✎ Lubricate the rolling
elements and mating track
Two contact zones must be lubricated and considered separately:
■ the rolling elements and rolling element raceway
■ the outside surface of the track roller and the mating track.
Track rollers are also available as a special design with a lubrication hole
in the inner ring. These bearings have the suffix IS1 u1435|e3.
2.5 Sealing
Yoke type track rollers
✎ Bearings
with the suffix 2RSR
Yoke type track rollers with the suffix 2RSR have lip seals with radial seal-
ing action on both sides. In some sizes, RS seals with axial sealing action
are fitted for reasons of space.
q7
Installation as track roller:
deformation of the outer ring when
used against a flat mating track
000A7546000A7546https://www.schaeffler.de/std/1D65
Compensation of angular misalignments
Track rollers | Yoke type ball bearing track rollers, stud type ball bearing track rollers |
■ bending stresses and reverse bending strengths in the outer ring.
These are taken into consideration by the permissible effective
radial loads Fr per and F0r per. The bending stresses and reverse bending
strengths must not exceed the permissible strength values of
the material.
2.3 Compensation of angular misalignments
✎ Not suitable
for the compensation
of angular misalignments
Track rollers are not suitable for the compensation of angular misalign-
ments, but can tolerate small misalignments and slight skewed running;
for limits see chapter Yoke type roller bearing track rollers, stud type roller
bearing track rollers u1380
✎ Skewed running Skewed running leads to additional axial loading of the bearing and
to elastic axial slippage in rolling contact between the outer ring and
the mating track.
✎ Tilted running If tilting occurs during running, increased edge stresses occur,
especially in track rollers with a cylindrical outside surface of the outer
ring. Track rollers with a crowned outer ring are less sensitive to tilting
and should therefore be used in preference if tilting is expected.
2.4 Lubrication
✎ Greased using
a grease to GA13
The track rollers are greased using a lithium soap grease to GA13.
In the case of stud type track rollers, series ZLE52 can be lubricated via the
roller stud. Track rollers with a plastic outer tyre cannot be relubricated.
Suitable greases for relubrication u1392|e1.
✎ LR52, LR53 Double row track rollers are also greased using a lithium soap grease
to GA13. Due to the improved internal construction, less friction occurs
and less strain is placed on the lubricant. This leads to lower bearing
temperatures.
Two contact zones
✎ Lubricate the rolling
elements and mating track
Two contact zones must be lubricated and considered separately:
■ the rolling elements and rolling element raceway
■ the outside surface of the track roller and the mating track.
Track rollers are also available as a special design with a lubrication hole
in the inner ring. These bearings have the suffix IS1 u1435|e3.
2.5 Sealing
Yoke type track rollers
✎ Bearings
with the suffix 2RSR
Yoke type track rollers with the suffix 2RSR have lip seals with radial seal-
ing action on both sides. In some sizes, RS seals with axial sealing action
are fitted for reasons of space.
q7
Installation as track roller:
deformation of the outer ring when
used against a flat mating track
000A7546000A7546https://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1433
Noise✎ 2HRS or 2Z seal Double row yoke type track rollers in X-life quality have a revised sealing
concept with a significantly improved sealing action compared to the pre-
vious design u1433|q8. Further information on HRS seals u219|e2.
As standard, the bearings (suffix 2HRS) have DEHP-free lip seals on both
sides.
Stud type track rollers
✎ Series ZL2 and ZL52 Stud type track rollers ZL2 and ZL52 have lip seals on the stud side
and the suffix DRS. The opposite side can be sealed using the plastic cover
supplied.
✎ Series ZLE52 Stud type track rollers ZLE52 have sealing shields on both sides and
the suffix 2Z.
Track rollers with plastic outer tyre✎ Sealing shields or lip seals These track rollers have sealing shields on both sides (suffix 2Z) or lip
seals with radial sealing action (suffix 2RSR).
2.6 Speeds
✎ Speeds nD G The maximum permissible speed for track rollers is essentially determined
by the permissible operating temperature of the track rollers. The speed
thus depends on the type of bearing, the load, the lubrication conditions
and the cooling conditions.
✎ Speeds with lip seals The speed of track rollers with lip seals is additionally restricted by
the permissible sliding speed at the seal lip.
✎ Speeds during
continuous operation
The speeds n D G in the product tables are guide values and are valid for
grease lubrication.
Additional information on the subject of speeds in the chapter Yoke type
roller bearing track rollers, stud type roller bearing track rollers must be
observed u1396|1.6.
2.7 Noise
Schaeffler Noise Index
The Schaeffler Noise Index (SGI) is not yet available for this bearing
type u69. The data for these bearing series will be introduced and
updated in stages.
Further information:
■ medias uhttps://medias.schaeffler.com.
q8
Lip seal 2HRS or sealing shield 2Z
Innovative geometry of lip
seal 2HRS with axial contact
between sealing ring and
inner ring
Sealing shield 2Z
with labyrinth seal
000A727D000A727Dhttps://www.schaeffler.de/std/1D65
Noise✎ 2HRS or 2Z seal Double row yoke type track rollers in X-life quality have a revised sealing
concept with a significantly improved sealing action compared to the pre-
vious design u1433|q8. Further information on HRS seals u219|e2.
As standard, the bearings (suffix 2HRS) have DEHP-free lip seals on both
sides.
Stud type track rollers
✎ Series ZL2 and ZL52 Stud type track rollers ZL2 and ZL52 have lip seals on the stud side
and the suffix DRS. The opposite side can be sealed using the plastic cover
supplied.
✎ Series ZLE52 Stud type track rollers ZLE52 have sealing shields on both sides and
the suffix 2Z.
Track rollers with plastic outer tyre✎ Sealing shields or lip seals These track rollers have sealing shields on both sides (suffix 2Z) or lip
seals with radial sealing action (suffix 2RSR).
2.6 Speeds
✎ Speeds nD G The maximum permissible speed for track rollers is essentially determined
by the permissible operating temperature of the track rollers. The speed
thus depends on the type of bearing, the load, the lubrication conditions
and the cooling conditions.
✎ Speeds with lip seals The speed of track rollers with lip seals is additionally restricted by
the permissible sliding speed at the seal lip.
✎ Speeds during
continuous operation
The speeds n D G in the product tables are guide values and are valid for
grease lubrication.
Additional information on the subject of speeds in the chapter Yoke type
roller bearing track rollers, stud type roller bearing track rollers must be
observed u1396|1.6.
2.7 Noise
Schaeffler Noise Index
The Schaeffler Noise Index (SGI) is not yet available for this bearing
type u69. The data for these bearing series will be introduced and
updated in stages.
Further information:
■ medias uhttps://medias.schaeffler.com.
q8
Lip seal 2HRS or sealing shield 2Z
Innovative geometry of lip
seal 2HRS with axial contact
between sealing ring and
inner ring
Sealing shield 2Z
with labyrinth seal
000A727D000A727Dhttps://www.schaeffler.de/std/1D65
1434 HR 1
Temperature range
Track rollers | Yoke type ball bearing track rollers, stud type ball bearing track rollers |
2.8 Temperature range
✎ Limiting values The operating temperature of the track rollers is limited by:
■ the dimensional stability of the bearing rings and rolling elements
■ the cage
■ the lubricant
■ the seals
■ the plastic outer tyre.
Possible operating temperatures of the track rollers u1434|e1.
e1
Permissible temperature ranges
In the event of anticipated temperatures which lie outside the stated
values, please contact Schaeffler.
2.9 Cages
✎ Solid cages made
from polyamide PA66
are used as standard
The cages used in the track rollers are plastic cages made from glass fibre
reinforced polyamide PA66. These cages have a low mass as well as good
sliding and emergency running characteristics. Track rollers in the X-life
design have an optimised polyamide cage as standard.
2.10 Internal clearance
Radial internal clearance
✎ The standard is CN Track rollers are manufactured as standard with radial internal clearance
CN (normal) u1434|e2. CN is not stated in the designation.
The values for radial internal clearance correspond to DIN 620-4:2004
(ISO 5753-1:2009). These are valid for bearings which are free from load
and measurement forces (without elastic deformation).
e2
Radial internal clearance
for yoke and stud type track rollers
Operating
temperature
Yoke type track rollers
with plastic outer tyre KLRU and KLRZ without plastic outer tyre
–20 °C to +80 °C –20 °C to +120 °C
Nominal
bore diameter
Radial internal clearance
d C2
(Group 2)
CN
(Group N)
C3
(Group 3)
C4
(Group 4)
C5
(Group 5)
mm m m m m m
over incl. min. max. min. max. min. max. min. max. min. max.
2,5 10 0 7 2 13 8 23 14 29 20 37
10 18 0 9 3 18 11 25 18 33 25 45
18 24 0 10 5 20 13 28 20 36 28 48
24 30 1 11 5 20 13 28 23 41 30 53
30 40 1 11 6 20 15 33 28 46 40 64
40 50 1 11 6 23 18 36 30 51 45 73
50 65 1 15 8 28 23 43 38 61 55 90https://www.schaeffler.de/std/1D65
Temperature range
Track rollers | Yoke type ball bearing track rollers, stud type ball bearing track rollers |
2.8 Temperature range
✎ Limiting values The operating temperature of the track rollers is limited by:
■ the dimensional stability of the bearing rings and rolling elements
■ the cage
■ the lubricant
■ the seals
■ the plastic outer tyre.
Possible operating temperatures of the track rollers u1434|e1.
e1
Permissible temperature ranges
In the event of anticipated temperatures which lie outside the stated
values, please contact Schaeffler.
2.9 Cages
✎ Solid cages made
from polyamide PA66
are used as standard
The cages used in the track rollers are plastic cages made from glass fibre
reinforced polyamide PA66. These cages have a low mass as well as good
sliding and emergency running characteristics. Track rollers in the X-life
design have an optimised polyamide cage as standard.
2.10 Internal clearance
Radial internal clearance
✎ The standard is CN Track rollers are manufactured as standard with radial internal clearance
CN (normal) u1434|e2. CN is not stated in the designation.
The values for radial internal clearance correspond to DIN 620-4:2004
(ISO 5753-1:2009). These are valid for bearings which are free from load
and measurement forces (without elastic deformation).
e2
Radial internal clearance
for yoke and stud type track rollers
Operating
temperature
Yoke type track rollers
with plastic outer tyre KLRU and KLRZ without plastic outer tyre
–20 °C to +80 °C –20 °C to +120 °C
Nominal
bore diameter
Radial internal clearance
d C2
(Group 2)
CN
(Group N)
C3
(Group 3)
C4
(Group 4)
C5
(Group 5)
mm m m m m m
over incl. min. max. min. max. min. max. min. max. min. max.
2,5 10 0 7 2 13 8 23 14 29 20 37
10 18 0 9 3 18 11 25 18 33 25 45
18 24 0 10 5 20 13 28 20 36 28 48
24 30 1 11 5 20 13 28 23 41 30 53
30 40 1 11 6 20 15 33 28 46 40 64
40 50 1 11 6 23 18 36 30 51 45 73
50 65 1 15 8 28 23 43 38 61 55 90https://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1435
Structure of bearing designation
2.11 Dimensions, tolerances
Tolerances
The tolerances for the dimensional and running accuracy of track rollers
correspond to tolerance class Normal in accordance with ISO 492:2014.
In a deviation from ISO 492, the diameter tolerance of the profiled outside
surface is 0/–0,05 mm.
✎ Stud tolerances The stud diameter tolerances for stud type track rollers are:
■ in tolerance class r6 for ZL2 and ZL52
■ in tolerance class h7 for KR52
■ in tolerance class h9 for ZLE52.
2.12 Suffixes
For a description of the suffixes used in this chapter u1435|e3 and
medias interchange uhttps://www.schaeffler.de/std/1D52.
e3
Suffixes and
corresponding descriptions
2.13 Structure of bearing designation✎ Examples of composition
of bearing designation
The designation of bearings follows a set model. Examples u1435|q9
to u1436|q11.
Suffix Description of suffix
DRS Lip seal on stud side, axial sealing action
Sealing shield with cover on the end face
Standard
IS1 Lubrication hole in inner ring Special design,
available
by agreement
RR Protected against corrosion by Corrotect special
coating
TVH Cage made from glass fibre reinforced polyamide Standard
X Cylindrical outside surface
XL X-life design
2HRS Lip seal on both sides with optimised geometry,
low friction
2RS Lip seal on both sides, with axial sealing action
2RSR Lip seal on both sides, with radial sealing action
2Z Sealing shield on both sides
q9
Single row yoke type track roller,
lip seal on both sides:
designation structure
000B1120000B1120
q10
Double row yoke type track roller,
2HRS seal on both sides,
cage made from glass fibre
reinforced polyamide,
X-life design:
designation structure
000B1156000B1156https://www.schaeffler.de/std/1D65
Structure of bearing designation
2.11 Dimensions, tolerances
Tolerances
The tolerances for the dimensional and running accuracy of track rollers
correspond to tolerance class Normal in accordance with ISO 492:2014.
In a deviation from ISO 492, the diameter tolerance of the profiled outside
surface is 0/–0,05 mm.
✎ Stud tolerances The stud diameter tolerances for stud type track rollers are:
■ in tolerance class r6 for ZL2 and ZL52
■ in tolerance class h7 for KR52
■ in tolerance class h9 for ZLE52.
2.12 Suffixes
For a description of the suffixes used in this chapter u1435|e3 and
medias interchange uhttps://www.schaeffler.de/std/1D52.
e3
Suffixes and
corresponding descriptions
2.13 Structure of bearing designation✎ Examples of composition
of bearing designation
The designation of bearings follows a set model. Examples u1435|q9
to u1436|q11.
Suffix Description of suffix
DRS Lip seal on stud side, axial sealing action
Sealing shield with cover on the end face
Standard
IS1 Lubrication hole in inner ring Special design,
available
by agreement
RR Protected against corrosion by Corrotect special
coating
TVH Cage made from glass fibre reinforced polyamide Standard
X Cylindrical outside surface
XL X-life design
2HRS Lip seal on both sides with optimised geometry,
low friction
2RS Lip seal on both sides, with axial sealing action
2RSR Lip seal on both sides, with radial sealing action
2Z Sealing shield on both sides
q9
Single row yoke type track roller,
lip seal on both sides:
designation structure
000B1120000B1120
q10
Double row yoke type track roller,
2HRS seal on both sides,
cage made from glass fibre
reinforced polyamide,
X-life design:
designation structure
000B1156000B1156https://www.schaeffler.de/std/1D65
1436 HR 1
Dimensioning
Track rollers | Yoke type ball bearing track rollers, stud type ball bearing track rollers |
2.14 Dimensioning
✎ Calculation
of the rating life
The methods for calculating the rating life are:
■ the basic rating life to DIN ISO 281
■ the adjusted basic rating life to DIN ISO 281
■ the expanded calculation of the adjusted reference rating life
to DIN ISO 281-4.
✎ Use effective basic
dynamic/ static load ratings
These methods are described in the chapter Load carrying capacity
and life. For track rollers, the following values must be replaced:
■ C r , C0r = C r w , C0r w
Effective basic dynamic or static load rating
■ C ur = C ur w
Fatigue limit load as track roller.
Further equations for calculating the rating life are given in the chapter
Yoke type roller bearing track rollers, stud type roller bearing track rollers.
The instructions and information provided there must be observed.
Static load safety factor
✎ S0 = C0r w/F0r In addition to the basic rating life L, it is also always necessary to check
the static load safety factor S0 u1436|w1.
Legend S0 – Static load safety factor
C0r w N Effective radial basic static load rating in accordance
with product table
F0r N Maximum static radial load on track roller.
Track rollers are regarded as heavily loaded at a static load safety factor
of S0 8. Static load safety factors of S0 1 cause plastic deformation
of the rolling elements and the raceways, which can impair smooth
running. This is only permissible for bearings with small rotary motions or
in secondary applications.
If an application has a static load safety factor S0 2, please consult
Schaeffler.
2.15 Minimum load
✎ Minimum load
C 0r w/Fr
60
In order to ensure that the outer ring is driven, that no slippage occurs
and that the track roller does not lift from the mating track, the track roller
must be subjected to a minimum load in dynamic operation. In general,
the minimum load is calculated using the ratio C0r w /Fr 60.
q11
Double row stud type track roller
with eccentric collar,
sealing shield on both sides:
designation structure
000B1129000B1129
w1
Static load safety factorhttps://www.schaeffler.de/std/1D65
Dimensioning
Track rollers | Yoke type ball bearing track rollers, stud type ball bearing track rollers |
2.14 Dimensioning
✎ Calculation
of the rating life
The methods for calculating the rating life are:
■ the basic rating life to DIN ISO 281
■ the adjusted basic rating life to DIN ISO 281
■ the expanded calculation of the adjusted reference rating life
to DIN ISO 281-4.
✎ Use effective basic
dynamic/ static load ratings
These methods are described in the chapter Load carrying capacity
and life. For track rollers, the following values must be replaced:
■ C r , C0r = C r w , C0r w
Effective basic dynamic or static load rating
■ C ur = C ur w
Fatigue limit load as track roller.
Further equations for calculating the rating life are given in the chapter
Yoke type roller bearing track rollers, stud type roller bearing track rollers.
The instructions and information provided there must be observed.
Static load safety factor
✎ S0 = C0r w/F0r In addition to the basic rating life L, it is also always necessary to check
the static load safety factor S0 u1436|w1.
Legend S0 – Static load safety factor
C0r w N Effective radial basic static load rating in accordance
with product table
F0r N Maximum static radial load on track roller.
Track rollers are regarded as heavily loaded at a static load safety factor
of S0 8. Static load safety factors of S0 1 cause plastic deformation
of the rolling elements and the raceways, which can impair smooth
running. This is only permissible for bearings with small rotary motions or
in secondary applications.
If an application has a static load safety factor S0 2, please consult
Schaeffler.
2.15 Minimum load
✎ Minimum load
C 0r w/Fr
60
In order to ensure that the outer ring is driven, that no slippage occurs
and that the track roller does not lift from the mating track, the track roller
must be subjected to a minimum load in dynamic operation. In general,
the minimum load is calculated using the ratio C0r w /Fr 60.
q11
Double row stud type track roller
with eccentric collar,
sealing shield on both sides:
designation structure
000B1129000B1129
w1
Static load safety factorhttps://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1437
Mounting and dismounting
2.16 Design of bearing arrangements
Adjacent construction of yoke type track rollers
✎ The value for dimension
“d 2” must not be less
than the value stated
The abutment surfaces for the bearings must be flat and perpendicular.
Due to the contact pressure occurring, they must not be less than
the dimension d2 ; see product tables for values u1440|r.
✎ Yoke type track rollers LR Yoke type track rollers LR can be axially clamped or located by means
of conventional fasteners such as snap rings.
Shaft tolerances
✎ Tolerance class h6 e In general, yoke type track rollers have point load on the inner ring.
In order to ensure adequate support and to largely avoid fretting corrosion,
the shaft tolerance should be in the tolerance class h6 e.
Adjacent construction of stud type track rollers
✎ The value for dimension
“d 2” must not be less
than the value stated
The abutment surfaces for the track rollers must be flat and perpendicular.
Due to the contact pressure occurring, they must not be less than
the dimension d2 ; see product tables for values u1444|r.
✎ Lead chamfer The lead chamfer on the locating bore must not be more than 0,545°.
Stud type track rollers ZL and KR must be axially clamped. The abutment
surface for the nut must have sufficiently high strength and the tightening
torque M A for the fixing nut must be observed; see product table for values
u1444|r. The roller stud can only transmit the permissible radial load if
the correct tightening torque is applied. If the tightening torque for the nut
cannot be adhered to, an interference fit is required.
Locating bore tolerance
✎ Tolerance class H7 e For series ZL2, ZL52, KR52 and ZLE52, Schaeffler recommends locating
bores to tolerance class H7 e.
2.17 Mounting and dismounting
The mounting and dismounting options for track rollers, by mechanical
or hydraulic methods, must be taken into consideration in the design
of the bearing position.
Schaeffler Mounting Handbook
✎ Rolling bearings must be
handled with great care
Rolling bearings are well-proven precision machine elements for the
design of economical and reliable bearing arrangements, which offer
high operational security. In order that these products can function
correctly and achieve the envisaged operating life without detrimental
effect, they must be handled with care.
The Schaeffler Mounting Handbook MH 1 gives comprehensive infor-
mation about the correct storage, mounting, dismounting and mainten-
ance of rotary rolling bearings uhttps://www.schaeffler.de/std/1D53.
It also provides information which should be observed by the designer,
in relation to the mounting, dismounting and maintenance of bearings,
in the original design of the bearing position. This book is available from
Schaeffler on request.https://www.schaeffler.de/std/1D65
Mounting and dismounting
2.16 Design of bearing arrangements
Adjacent construction of yoke type track rollers
✎ The value for dimension
“d 2” must not be less
than the value stated
The abutment surfaces for the bearings must be flat and perpendicular.
Due to the contact pressure occurring, they must not be less than
the dimension d2 ; see product tables for values u1440|r.
✎ Yoke type track rollers LR Yoke type track rollers LR can be axially clamped or located by means
of conventional fasteners such as snap rings.
Shaft tolerances
✎ Tolerance class h6 e In general, yoke type track rollers have point load on the inner ring.
In order to ensure adequate support and to largely avoid fretting corrosion,
the shaft tolerance should be in the tolerance class h6 e.
Adjacent construction of stud type track rollers
✎ The value for dimension
“d 2” must not be less
than the value stated
The abutment surfaces for the track rollers must be flat and perpendicular.
Due to the contact pressure occurring, they must not be less than
the dimension d2 ; see product tables for values u1444|r.
✎ Lead chamfer The lead chamfer on the locating bore must not be more than 0,545°.
Stud type track rollers ZL and KR must be axially clamped. The abutment
surface for the nut must have sufficiently high strength and the tightening
torque M A for the fixing nut must be observed; see product table for values
u1444|r. The roller stud can only transmit the permissible radial load if
the correct tightening torque is applied. If the tightening torque for the nut
cannot be adhered to, an interference fit is required.
Locating bore tolerance
✎ Tolerance class H7 e For series ZL2, ZL52, KR52 and ZLE52, Schaeffler recommends locating
bores to tolerance class H7 e.
2.17 Mounting and dismounting
The mounting and dismounting options for track rollers, by mechanical
or hydraulic methods, must be taken into consideration in the design
of the bearing position.
Schaeffler Mounting Handbook
✎ Rolling bearings must be
handled with great care
Rolling bearings are well-proven precision machine elements for the
design of economical and reliable bearing arrangements, which offer
high operational security. In order that these products can function
correctly and achieve the envisaged operating life without detrimental
effect, they must be handled with care.
The Schaeffler Mounting Handbook MH 1 gives comprehensive infor-
mation about the correct storage, mounting, dismounting and mainten-
ance of rotary rolling bearings uhttps://www.schaeffler.de/std/1D53.
It also provides information which should be observed by the designer,
in relation to the mounting, dismounting and maintenance of bearings,
in the original design of the bearing position. This book is available from
Schaeffler on request.https://www.schaeffler.de/std/1D65
1438 HR 1
Mounting and dismounting
Track rollers | Yoke type ball bearing track rollers, stud type ball bearing track rollers |
Mounting guidelines for yoke type track rollers
✎ Guidelines If the tolerances are unfavourable, the yoke type track rollers should be
pressed onto the shaft or stud using a mounting press u1438|q12.
The inner ring must be fitted such that the pressing-in force is distributed
uniformly on the end face of the inner ring. The press-in force must not be
directed through the rolling elements. Ensure that the seals are not dam-
aged while mounting the yoke type track rollers. Yoke type track rollers
must be secured axially after mounting.
Stud type track rollers
✎ Guidelines for mounting Stud type track rollers are mounted and dismounted using the methods
applied to yoke type track rollers u1438|q13. The tightening
torques M A given in the product tables must be observed. It is only in this
way that the permissible radial load can be ensured. Screws and nuts of
grade 8.8 or better must be used.
q12
Mounting of yoke type track roller
using a mounting press
Mounting press
000A43CD000A43CD
q13
Mounting of stud type track roller
000A4469000A4469https://www.schaeffler.de/std/1D65
Mounting and dismounting
Track rollers | Yoke type ball bearing track rollers, stud type ball bearing track rollers |
Mounting guidelines for yoke type track rollers
✎ Guidelines If the tolerances are unfavourable, the yoke type track rollers should be
pressed onto the shaft or stud using a mounting press u1438|q12.
The inner ring must be fitted such that the pressing-in force is distributed
uniformly on the end face of the inner ring. The press-in force must not be
directed through the rolling elements. Ensure that the seals are not dam-
aged while mounting the yoke type track rollers. Yoke type track rollers
must be secured axially after mounting.
Stud type track rollers
✎ Guidelines for mounting Stud type track rollers are mounted and dismounted using the methods
applied to yoke type track rollers u1438|q13. The tightening
torques M A given in the product tables must be observed. It is only in this
way that the permissible radial load can be ensured. Screws and nuts of
grade 8.8 or better must be used.
q12
Mounting of yoke type track roller
using a mounting press
Mounting press
000A43CD000A43CD
q13
Mounting of stud type track roller
000A4469000A4469https://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1439
Further information
2.18 Legal notice regarding data freshness✎ The further development
of products may also result
in technical changes
to catalogue products
Of central interest to Schaeffler is the further development and opti-
misation of its products and the satisfaction of its customers. In order that
you, as the customer, can keep yourself optimally informed about the pro-
gress that is being made here and with regard to the current technical
status of the products, we publish any product changes which differ from
the printed version in our electronic product catalogue.
We therefore reserve the right to make changes to the data and illus-
trations in this catalogue. This catalogue reflects the status at the time
of printing. More recent publications released by us (as printed or
digital media) will automatically precede this catalogue if they involve
the same subject. Therefore, please always use our electronic product
catalogue to check whether more up-to-date information or modification
notices exist for your desired product.
Link to electronic product catalogue
The following link will take you to the Schaeffler electronic product
catalogue: uhttps://medias.schaeffler.com.
2.19 Further information
For reliable and problem-free operation of track rollers, it is essential
that attention is paid to the following information in the chapter Yoke
type roller bearing track rollers, stud type roller bearing track rollers:
■ installation as yoke or stud type track roller u1390
■ permissible dynamic or static radial load u1391
■ load carrying capacity and life u1400
■ operating life u1400
■ minimum load u1402
■ angular misalignment and tilting u1391
■ speeds u1396
■ lubrication u1392.https://www.schaeffler.de/std/1D65
Further information
2.18 Legal notice regarding data freshness✎ The further development
of products may also result
in technical changes
to catalogue products
Of central interest to Schaeffler is the further development and opti-
misation of its products and the satisfaction of its customers. In order that
you, as the customer, can keep yourself optimally informed about the pro-
gress that is being made here and with regard to the current technical
status of the products, we publish any product changes which differ from
the printed version in our electronic product catalogue.
We therefore reserve the right to make changes to the data and illus-
trations in this catalogue. This catalogue reflects the status at the time
of printing. More recent publications released by us (as printed or
digital media) will automatically precede this catalogue if they involve
the same subject. Therefore, please always use our electronic product
catalogue to check whether more up-to-date information or modification
notices exist for your desired product.
Link to electronic product catalogue
The following link will take you to the Schaeffler electronic product
catalogue: uhttps://medias.schaeffler.com.
2.19 Further information
For reliable and problem-free operation of track rollers, it is essential
that attention is paid to the following information in the chapter Yoke
type roller bearing track rollers, stud type roller bearing track rollers:
■ installation as yoke or stud type track roller u1390
■ permissible dynamic or static radial load u1391
■ load carrying capacity and life u1400
■ operating life u1400
■ minimum load u1402
■ angular misalignment and tilting u1391
■ speeds u1396
■ lubrication u1392.https://www.schaeffler.de/std/1D65
1440 HR 1
r D = 13 – 90 mm
Yoke type ball bearing track rollers, single row, sealed
Yoke type ballbearingtrackrollers, single row,sealed
Yoke type ball bearing track rollers
Single row
Sealed
D = 13 – 90 mm
With seal 2RSR, 2RS
000A4478000A4478
medias uhttps://www.schaeffler.de/std/1D95
1) Track roller with cylindrical outside surface.
Main dimensions Basic load ratings Fatigue
limit load
Speed Mass Designation Dimensions
D d C dyn.
C r w
stat.
C 0r w
Cur w nD G m u1435|2.12
u1435|2.13
d2 r
N N N min–1 g min.
13 4 4 920 350 18,1 24 000 10 LR604-2RSR 6,1 0,2
16 5 5 1 290 510 25,5 23 000 10 LR605-2RSR 7,5 0,2
19 6 6 1 940 790 39,5 22 000 10 LR606-2RSR 8,7 0,3
22 7 6 2 250 880 42,5 20 000 10 LR607-2RSR 9 0,3
24 8 7 2 950 1 240 63 19 000 20 LR608-2RSR 10 0,3
28 10 8 5 000 2 490 126 16 000 20 LR6000-2RSR 14,6 0,3
30 12 8 5 300 2 750 144 15 000 30 LR6001-2RSR 16,6 0,3
32 10 9 5 100 2 310 117 13 000 50 LR200-2RSR 16,6 0,6
10 9 5 100 2 310 117 13 000 50 LR200-X-2RSR 16,6 0,6
35 12 10 6 000 2 750 137 12 000 50 LR201-2RSR 18,3 0,6
12 10 6 000 2 750 137 12 000 50 LR201-X-2RSR1) 18,3 0,6
40 15 11 7 000 3 350 170 11 000 70 LR202-2RSR 21 0,6
15 11 7 000 3 350 170 11 000 70 LR202-X-2RSR1) 21 0,6
47 17 12 8 900 4 450 223 9 000 110 LR203-2RSR 24 0,6
17 12 8 900 4 450 223 9 000 110 LR203-X-2RSR1) 24 0,6
52 20 14 11 300 5 700 295 8 000 150 LR204-2RSR 29 1
20 14 11 300 5 700 295 8 000 150 LR204-X-2RSR1) 29 1
62 25 15 13 300 7 100 360 7 000 230 LR205-2RSR 33,5 1
25 15 13 300 7 100 360 7 000 230 LR205-X-2RSR1) 33,5 1
72 30 16 17 600 9 700 500 5 500 330 LR206-2RS 37,4 1
30 16 17 600 9 700 500 5 500 330 LR206-X-2RS1) 37,4 1
80 35 17 21 900 12 100 640 4 500 400 LR207-2RS 42,4 1,1
35 17 21 900 12 100 640 4 500 400 LR207-X-2RS1) 42,4 1,1
90 45 19 23 700 13 700 730 3 600 500 LR209-2RS 53,2 1,1
45 19 23 700 13 700 730 3 600 500 LR209-X-2RS1) 53,2 1,1https://www.schaeffler.de/std/1D65
r D = 13 – 90 mm
Yoke type ball bearing track rollers, single row, sealed
Yoke type ballbearingtrackrollers, single row,sealed
Yoke type ball bearing track rollers
Single row
Sealed
D = 13 – 90 mm
With seal 2RSR, 2RS
000A4478000A4478
medias uhttps://www.schaeffler.de/std/1D95
1) Track roller with cylindrical outside surface.
Main dimensions Basic load ratings Fatigue
limit load
Speed Mass Designation Dimensions
D d C dyn.
C r w
stat.
C 0r w
Cur w nD G m u1435|2.12
u1435|2.13
d2 r
N N N min–1 g min.
13 4 4 920 350 18,1 24 000 10 LR604-2RSR 6,1 0,2
16 5 5 1 290 510 25,5 23 000 10 LR605-2RSR 7,5 0,2
19 6 6 1 940 790 39,5 22 000 10 LR606-2RSR 8,7 0,3
22 7 6 2 250 880 42,5 20 000 10 LR607-2RSR 9 0,3
24 8 7 2 950 1 240 63 19 000 20 LR608-2RSR 10 0,3
28 10 8 5 000 2 490 126 16 000 20 LR6000-2RSR 14,6 0,3
30 12 8 5 300 2 750 144 15 000 30 LR6001-2RSR 16,6 0,3
32 10 9 5 100 2 310 117 13 000 50 LR200-2RSR 16,6 0,6
10 9 5 100 2 310 117 13 000 50 LR200-X-2RSR 16,6 0,6
35 12 10 6 000 2 750 137 12 000 50 LR201-2RSR 18,3 0,6
12 10 6 000 2 750 137 12 000 50 LR201-X-2RSR1) 18,3 0,6
40 15 11 7 000 3 350 170 11 000 70 LR202-2RSR 21 0,6
15 11 7 000 3 350 170 11 000 70 LR202-X-2RSR1) 21 0,6
47 17 12 8 900 4 450 223 9 000 110 LR203-2RSR 24 0,6
17 12 8 900 4 450 223 9 000 110 LR203-X-2RSR1) 24 0,6
52 20 14 11 300 5 700 295 8 000 150 LR204-2RSR 29 1
20 14 11 300 5 700 295 8 000 150 LR204-X-2RSR1) 29 1
62 25 15 13 300 7 100 360 7 000 230 LR205-2RSR 33,5 1
25 15 13 300 7 100 360 7 000 230 LR205-X-2RSR1) 33,5 1
72 30 16 17 600 9 700 500 5 500 330 LR206-2RS 37,4 1
30 16 17 600 9 700 500 5 500 330 LR206-X-2RS1) 37,4 1
80 35 17 21 900 12 100 640 4 500 400 LR207-2RS 42,4 1,1
35 17 21 900 12 100 640 4 500 400 LR207-X-2RS1) 42,4 1,1
90 45 19 23 700 13 700 730 3 600 500 LR209-2RS 53,2 1,1
45 19 23 700 13 700 730 3 600 500 LR209-X-2RS1) 53,2 1,1https://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1441
D = 17 – 68 mm rYoke type ball bearing track rollers, double row, sealed
Yoke type ballbearingtrackrollers,double row,sealed
Yoke type ball bearing track rollers
Double row
Sealed
D = 17 – 68 mm
With seal 2RSR, 2RS
000A448A000A448A
medias uhttps://www.schaeffler.de/std/1D96
Main dimensions Basic load ratings Fatigue
limit load
Speed Mass Designation Dimensions
D d C dyn.
C r w
stat.
C 0r w Fr per
Cur w n D G m u1435|2.12
u1435|2.13
d 2 r
N N N N min –1 g min.
17 5 7 1 690 940 940 48,5 12 000 10 LR50/5-2RSR 8,2 0,2
19 6 9 2 700 1 370 1 370 66 11 000 20 LR50/6-2RSR 9,3 0,3
22 7 10 3 300 1 700 1 700 81 10 000 20 LR50/7-2RSR 10,5 0,3
24 8 11 4 300 2 390 2 390 119 10 000 30 LR50/8-2RSR 10,5 0,3
28 10 12 4 750 2 850 2 850 145 9 000 30 LR5000-2RS 13,5 0,3
30 12 12 5 100 3 100 3 100 161 8 500 30 LR5001-2RS 15,5 0,3
35 15 13 6 500 4 150 4 150 217 7 000 50 LR5002-2RS 20,4 0,3
40 17 14 7 800 5 200 5 200 270 6 000 70 LR5003-2RS 21,6 0,3
47 20 16 11 700 7 700 7 700 400 5 500 120 LR5004-2RS 25,2 0,6
52 25 16 11 800 8 200 8 200 440 4 700 150 LR5005-2RS 29,8 0,6
62 30 19 16 100 11 900 11 900 630 4 000 250 LR5006-2RS 35,5 1
68 35 20 17 800 13 300 13 300 720 4 300 300 LR5007-2RS 41,7 1https://www.schaeffler.de/std/1D65
D = 17 – 68 mm rYoke type ball bearing track rollers, double row, sealed
Yoke type ballbearingtrackrollers,double row,sealed
Yoke type ball bearing track rollers
Double row
Sealed
D = 17 – 68 mm
With seal 2RSR, 2RS
000A448A000A448A
medias uhttps://www.schaeffler.de/std/1D96
Main dimensions Basic load ratings Fatigue
limit load
Speed Mass Designation Dimensions
D d C dyn.
C r w
stat.
C 0r w Fr per
Cur w n D G m u1435|2.12
u1435|2.13
d 2 r
N N N N min –1 g min.
17 5 7 1 690 940 940 48,5 12 000 10 LR50/5-2RSR 8,2 0,2
19 6 9 2 700 1 370 1 370 66 11 000 20 LR50/6-2RSR 9,3 0,3
22 7 10 3 300 1 700 1 700 81 10 000 20 LR50/7-2RSR 10,5 0,3
24 8 11 4 300 2 390 2 390 119 10 000 30 LR50/8-2RSR 10,5 0,3
28 10 12 4 750 2 850 2 850 145 9 000 30 LR5000-2RS 13,5 0,3
30 12 12 5 100 3 100 3 100 161 8 500 30 LR5001-2RS 15,5 0,3
35 15 13 6 500 4 150 4 150 217 7 000 50 LR5002-2RS 20,4 0,3
40 17 14 7 800 5 200 5 200 270 6 000 70 LR5003-2RS 21,6 0,3
47 20 16 11 700 7 700 7 700 400 5 500 120 LR5004-2RS 25,2 0,6
52 25 16 11 800 8 200 8 200 440 4 700 150 LR5005-2RS 29,8 0,6
62 30 19 16 100 11 900 11 900 630 4 000 250 LR5006-2RS 35,5 1
68 35 20 17 800 13 300 13 300 720 4 300 300 LR5007-2RS 41,7 1https://www.schaeffler.de/std/1D65
1442 HR 1
r Yoke type ball bearing track rollers, double row, sealed
Yoke type ballbearingtrackrollers, double row,sealed
Yoke type ball bearing
track rollers
Double row
Sealed
Without relubrication hole 1)
D = 32 – 100 mm
With seal 2HRS
000A726B000A726B
With seal 2Z
000A7274000A7274
medias uhttps://www.schaeffler.de/std/1D97
1) With relubrication hole by agreement.
2) Track roller with cylindrical outside surface.
Main dimensions Basic load ratings Outer ring
limit load
Fatigue
limit load
Speed Mass Designation Dimensions
D d C dyn.
Cr w
stat.
C0r w
Fr per C ur w n D G m u1435|2.12
u1435|2.13
u1431
d2 r
N N N N min –1 g min.
32 10 14 7 200 4 800 4 800 243 9 200 70 LR5200-2HRS-TVH-XL 17 0,6
10 14 7 200 4 800 4 800 243 13 000 70 LR5200-2Z-TVH-XL 17 0,6
10 14 7 200 4 800 4 800 243 13 000 70 LR5200-X-2Z-TVH-XL2) 17 0,6
35 12 15,9 8 800 6 000 4 800 305 8 100 80 LR5201-2HRS-TVH-XL 19,1 0,6
12 15,9 8 800 6 000 4 800 305 11 100 80 LR5201-2Z-TVH-XL 19,1 0,6
12 15,9 8 800 6 000 4 800 305 11 100 80 LR5201-X-2Z-TVH-XL2) 19,1 0,6
40 15 15,9 10 800 7 500 7 500 385 7 400 110 LR5202-2HRS-TVH-XL 21 0,6
15 15,9 10 800 7 500 7 500 385 10 200 110 LR5202-2Z-TVH-XL 21 0,6
15 15,9 10 800 7 500 7 500 385 10 200 110 LR5202-X-2Z-TVH-XL2) 21 0,6
47 17 17,5 13 700 9 800 9 800 495 6 300 170 LR5203-2HRS-TVH-XL 24,4 0,6
17 17,5 13 700 9 800 9 800 495 8 900 170 LR5203-2Z-TVH-XL 24,4 0,6
17 17,5 13 700 9 800 9 800 495 8 900 170 LR5203-X-2Z-TVH-XL2) 24,4 0,6
52 20 20,6 16 900 12 300 10 200 640 5 300 230 LR5204-2HRS-TVH-XL 29,2 1
20 20,6 16 900 12 300 10 200 640 7 300 230 LR5204-2Z-TVH-XL 29,2 1
20 20,6 16 900 12 300 10 200 640 7 300 230 LR5204-X-2Z-TVH-XL2) 29,2 1
17 22,2 19 100 13 400 11 400 670 5 700 210 LR5303-2HRS-TVH-XL 27,1 1
62 25 20,6 19 700 15 400 15 400 790 4 500 340 LR5205-2HRS-TVH-XL 34,2 1
25 20,6 19 700 15 400 15 400 790 6 500 340 LR5205-2Z-TVH-XL 34,2 1
25 20,6 19 700 15 400 15 400 790 6 500 340 LR5205-X-2Z-TVH-XL2) 34,2 1
20 22,2 22 200 16 700 16 700 840 4 850 340 LR5304-2HRS-TVH-XL 31,9 1,1
20 22,2 22 200 16 700 16 700 840 6 700 340 LR5304-2Z-TVH-XL 31,9 1,1https://www.schaeffler.de/std/1D65
r Yoke type ball bearing track rollers, double row, sealed
Yoke type ballbearingtrackrollers, double row,sealed
Yoke type ball bearing
track rollers
Double row
Sealed
Without relubrication hole 1)
D = 32 – 100 mm
With seal 2HRS
000A726B000A726B
With seal 2Z
000A7274000A7274
medias uhttps://www.schaeffler.de/std/1D97
1) With relubrication hole by agreement.
2) Track roller with cylindrical outside surface.
Main dimensions Basic load ratings Outer ring
limit load
Fatigue
limit load
Speed Mass Designation Dimensions
D d C dyn.
Cr w
stat.
C0r w
Fr per C ur w n D G m u1435|2.12
u1435|2.13
u1431
d2 r
N N N N min –1 g min.
32 10 14 7 200 4 800 4 800 243 9 200 70 LR5200-2HRS-TVH-XL 17 0,6
10 14 7 200 4 800 4 800 243 13 000 70 LR5200-2Z-TVH-XL 17 0,6
10 14 7 200 4 800 4 800 243 13 000 70 LR5200-X-2Z-TVH-XL2) 17 0,6
35 12 15,9 8 800 6 000 4 800 305 8 100 80 LR5201-2HRS-TVH-XL 19,1 0,6
12 15,9 8 800 6 000 4 800 305 11 100 80 LR5201-2Z-TVH-XL 19,1 0,6
12 15,9 8 800 6 000 4 800 305 11 100 80 LR5201-X-2Z-TVH-XL2) 19,1 0,6
40 15 15,9 10 800 7 500 7 500 385 7 400 110 LR5202-2HRS-TVH-XL 21 0,6
15 15,9 10 800 7 500 7 500 385 10 200 110 LR5202-2Z-TVH-XL 21 0,6
15 15,9 10 800 7 500 7 500 385 10 200 110 LR5202-X-2Z-TVH-XL2) 21 0,6
47 17 17,5 13 700 9 800 9 800 495 6 300 170 LR5203-2HRS-TVH-XL 24,4 0,6
17 17,5 13 700 9 800 9 800 495 8 900 170 LR5203-2Z-TVH-XL 24,4 0,6
17 17,5 13 700 9 800 9 800 495 8 900 170 LR5203-X-2Z-TVH-XL2) 24,4 0,6
52 20 20,6 16 900 12 300 10 200 640 5 300 230 LR5204-2HRS-TVH-XL 29,2 1
20 20,6 16 900 12 300 10 200 640 7 300 230 LR5204-2Z-TVH-XL 29,2 1
20 20,6 16 900 12 300 10 200 640 7 300 230 LR5204-X-2Z-TVH-XL2) 29,2 1
17 22,2 19 100 13 400 11 400 670 5 700 210 LR5303-2HRS-TVH-XL 27,1 1
62 25 20,6 19 700 15 400 15 400 790 4 500 340 LR5205-2HRS-TVH-XL 34,2 1
25 20,6 19 700 15 400 15 400 790 6 500 340 LR5205-2Z-TVH-XL 34,2 1
25 20,6 19 700 15 400 15 400 790 6 500 340 LR5205-X-2Z-TVH-XL2) 34,2 1
20 22,2 22 200 16 700 16 700 840 4 850 340 LR5304-2HRS-TVH-XL 31,9 1,1
20 22,2 22 200 16 700 16 700 840 6 700 340 LR5304-2Z-TVH-XL 31,9 1,1https://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1443
D = 32 – 100 mm r
medias uhttps://www.schaeffler.de/std/1D98
1) Available with relubrication hole by agreement.
2) Track roller with cylindrical outside surface.
Main dimensions Basic load ratings Outer ring
limit load
Fatigue
limit load
Speed Mass Designation Dimensions
D d C dyn.
C r w
stat.
C 0r w
Fr per C ur w nD G m u1435|2.12
u1435|2.13
u1431
d2 r
N N N N min–1 g min.
72 30 23,8 26 500 21 400 21 400 1 110 3 800 510 LR5206-2HRS-TVH-XL 40,3 1
30 23,8 26 500 21 400 21 400 1 110 5 500 510 LR5206-2Z-TVH-XL 40,3 1
30 23,8 26 500 21 400 21 400 1 110 5 500 510 LR5206-X-2Z-TVH-XL2) 40,3 1
25 25,4 28 000 21 900 21 900 1 110 4 100 500 LR5305-2HRS-TVH-XL 37,6 1,1
25 25,4 28 000 21 900 21 900 1 110 5 700 500 LR5305-2Z-TVH-XL 37,6 1,1
80 35 27 33 000 26 500 22 200 1 410 3 100 660 LR5207-2HRS-TVH-XL 47 1,1
35 27 33 000 26 500 22 200 1 410 4 650 660 LR5207-2Z-TVH-XL 47 1,1
35 27 33 000 26 500 22 200 1 410 4 650 660 LR5207-X-2Z-TVH-XL2) 47 1,1
30 30,2 36 000 28 500 27 000 1 480 3 450 670 LR5306-2HRS-TVH-XL 44,4 1,1
30 30,2 36 000 28 500 27 000 1 480 4 750 670 LR5306-2Z-TVH-XL 44,4 1,1
85 40 30,2 36 500 30 000 16 300 1 600 2 900 750 LR5208-2HRS-TVH-XL 52,8 1,1
40 30,2 36 500 30 000 16 300 1 600 4 100 750 LR5208-2Z-TVH-XL 52,8 1,1
40 30,2 36 500 30 000 16 300 1 600 4 100 750 LR5208-X-2Z-TVH-XL2) 52,8 1,1
90 35 34,9 45 500 36 000 27 000 1 820 3 100 970 LR5307-2HRS-TVH-XL 49,6 1,5
35 34,9 45 500 36 000 27 000 1 820 4 100 970 LR5307-2Z-TVH-XL 49,6 1,5
100 40 36,5 54 000 44 500 35 500 2 310 2 700 1 200 LR5308-2HRS-TVH-XL 56,8 1,5
40 36,5 54 000 44 500 35 500 2 310 3 650 1 200 LR5308-2Z-TVH-XL 56,8 1,5https://www.schaeffler.de/std/1D65
D = 32 – 100 mm r
medias uhttps://www.schaeffler.de/std/1D98
1) Available with relubrication hole by agreement.
2) Track roller with cylindrical outside surface.
Main dimensions Basic load ratings Outer ring
limit load
Fatigue
limit load
Speed Mass Designation Dimensions
D d C dyn.
C r w
stat.
C 0r w
Fr per C ur w nD G m u1435|2.12
u1435|2.13
u1431
d2 r
N N N N min–1 g min.
72 30 23,8 26 500 21 400 21 400 1 110 3 800 510 LR5206-2HRS-TVH-XL 40,3 1
30 23,8 26 500 21 400 21 400 1 110 5 500 510 LR5206-2Z-TVH-XL 40,3 1
30 23,8 26 500 21 400 21 400 1 110 5 500 510 LR5206-X-2Z-TVH-XL2) 40,3 1
25 25,4 28 000 21 900 21 900 1 110 4 100 500 LR5305-2HRS-TVH-XL 37,6 1,1
25 25,4 28 000 21 900 21 900 1 110 5 700 500 LR5305-2Z-TVH-XL 37,6 1,1
80 35 27 33 000 26 500 22 200 1 410 3 100 660 LR5207-2HRS-TVH-XL 47 1,1
35 27 33 000 26 500 22 200 1 410 4 650 660 LR5207-2Z-TVH-XL 47 1,1
35 27 33 000 26 500 22 200 1 410 4 650 660 LR5207-X-2Z-TVH-XL2) 47 1,1
30 30,2 36 000 28 500 27 000 1 480 3 450 670 LR5306-2HRS-TVH-XL 44,4 1,1
30 30,2 36 000 28 500 27 000 1 480 4 750 670 LR5306-2Z-TVH-XL 44,4 1,1
85 40 30,2 36 500 30 000 16 300 1 600 2 900 750 LR5208-2HRS-TVH-XL 52,8 1,1
40 30,2 36 500 30 000 16 300 1 600 4 100 750 LR5208-2Z-TVH-XL 52,8 1,1
40 30,2 36 500 30 000 16 300 1 600 4 100 750 LR5208-X-2Z-TVH-XL2) 52,8 1,1
90 35 34,9 45 500 36 000 27 000 1 820 3 100 970 LR5307-2HRS-TVH-XL 49,6 1,5
35 34,9 45 500 36 000 27 000 1 820 4 100 970 LR5307-2Z-TVH-XL 49,6 1,5
100 40 36,5 54 000 44 500 35 500 2 310 2 700 1 200 LR5308-2HRS-TVH-XL 56,8 1,5
40 36,5 54 000 44 500 35 500 2 310 3 650 1 200 LR5308-2Z-TVH-XL 56,8 1,5https://www.schaeffler.de/std/1D65
1444 HR 1
r Stud type ball bearing track rollers, sealed
Studtype ballbearingtrackrollers, sealed
Stud type ball bearing track rollers
Sealed
D = 35 – 80 mm
ZL2..-DRS
000A44B7000A44B7
medias uhttps://www.schaeffler.de/std/1D99
Main dimensions Basic load ratings Fatigue
limit load
Speed Mass Designation
D d1 B dyn.
Cr w
stat.
C 0r w
Cur w nD G m u1435|2.12
u1435|2.13
N N N min –1 g
35 14 33,2 8 700 5 200 260 7 500 90 ZL5201-DRS
12 49,2 8 700 5 200 260 7 500 120 KR5201-2RS
40 16 23,8 7 000 3 350 170 8 500 80 ZL202-DRS
16 36,2 10 000 6 300 320 7 000 120 ZL5202-DRS
16 53,2 10 000 6 300 320 7 000 190 KR5202-2RS
47 18 26,5 8 900 4 450 223 6 500 120 ZL203-DRS
18 39,5 12 800 8 400 420 5 500 190 ZL5203-DRS
18 58,8 12 800 8 400 420 5 500 290 KR5203-2RS
52 20 30,7 11 300 5 700 295 6 000 170 ZL204-DRS
20 45,3 16 100 10 700 550 5 000 250 ZL5204-DRS
20 63,6 16 100 10 700 550 5 000 380 KR5204-2RS
62 25 33,8 13 300 7 100 360 5 500 250 ZL205-DRS
25 50,4 18 800 13 200 670 4 500 380 ZL5205-DRS
24 70,9 18 800 13 200 670 4 500 580 KR5205-2RS
72 30 59 25 000 18 000 930 3 500 550 ZL5206-DRS
24 74,1 25 000 18 000 930 3 500 800 KR5206-2RS
80 35 69,2 31 000 22 800 1 200 2 800 710 ZL5207-DRS
30 91 31 000 22 800 1 200 2 800 1 200 KR5207-2RShttps://www.schaeffler.de/std/1D65
r Stud type ball bearing track rollers, sealed
Studtype ballbearingtrackrollers, sealed
Stud type ball bearing track rollers
Sealed
D = 35 – 80 mm
ZL2..-DRS
000A44B7000A44B7
medias uhttps://www.schaeffler.de/std/1D99
Main dimensions Basic load ratings Fatigue
limit load
Speed Mass Designation
D d1 B dyn.
Cr w
stat.
C 0r w
Cur w nD G m u1435|2.12
u1435|2.13
N N N min –1 g
35 14 33,2 8 700 5 200 260 7 500 90 ZL5201-DRS
12 49,2 8 700 5 200 260 7 500 120 KR5201-2RS
40 16 23,8 7 000 3 350 170 8 500 80 ZL202-DRS
16 36,2 10 000 6 300 320 7 000 120 ZL5202-DRS
16 53,2 10 000 6 300 320 7 000 190 KR5202-2RS
47 18 26,5 8 900 4 450 223 6 500 120 ZL203-DRS
18 39,5 12 800 8 400 420 5 500 190 ZL5203-DRS
18 58,8 12 800 8 400 420 5 500 290 KR5203-2RS
52 20 30,7 11 300 5 700 295 6 000 170 ZL204-DRS
20 45,3 16 100 10 700 550 5 000 250 ZL5204-DRS
20 63,6 16 100 10 700 550 5 000 380 KR5204-2RS
62 25 33,8 13 300 7 100 360 5 500 250 ZL205-DRS
25 50,4 18 800 13 200 670 4 500 380 ZL5205-DRS
24 70,9 18 800 13 200 670 4 500 580 KR5205-2RS
72 30 59 25 000 18 000 930 3 500 550 ZL5206-DRS
24 74,1 25 000 18 000 930 3 500 800 KR5206-2RS
80 35 69,2 31 000 22 800 1 200 2 800 710 ZL5207-DRS
30 91 31 000 22 800 1 200 2 800 1 200 KR5207-2RShttps://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1445
D = 35 – 80 mm r
ZL52..-DRS
000A44D4000A44D4
KR52..-2RS
000A44DD000A44DD
Dimensions Tightening
torque
D B1 B2 B4 C C1 d 2 r G l G g lg W MA
max. min. Nm
35 19,5 14 31 15,9 2,6 17,1 0,6 – – M8 14 – –
17 32,5 0 15,9 0,8 17,1 0,6 M121,5 17 – – 6 45
40 14 10 21,5 11 2 20 0,6 – – M8 15 – –
20,5 16 34 15,9 3,5 20 0,6 – – M8 15 – –
17 36,5 0 15,9 0,8 20 0,6 M161,5 19 – – 8 70
47 14,5 12 24,5 12 2 22,9 0,6 – – M8 16 – –
21,5 18 37,5 17,5 3,5 22,9 0,6 – – M8 15 – –
18,5 40,5 0 17,5 0,8 22,9 0,6 M181,5 21 – – 8 115
52 17 14 28,5 14 2 26,8 1 – – M10 18 – –
25,5 20 43 20,6 4 26,8 1 – – M10 18 – –
22,5 41,5 0 20,6 1,5 26,8 1 M201,5 21 – – 10 160
62 18 16 31 15 2 30,3 1 – – M10 19 – –
25,5 25 47,5 20,6 4 30,3 1 – – M10 18 – –
21,5 49,5 0 20,6 0,8 30,3 1 M241,5 25 – – 10 290
72 29 30 56,5 23,8 4,5 37,3 1 – – M16 20 – –
25 49,5 0 23,8 0,8 37,3 1 M241,5 25 – – 10 290
80 33,5 36 66,5 27 5,5 42,4 1,1 – – M16 20 – –
28 63 0 27 1 42,4 1,1 M301,5 32 – – 12 600https://www.schaeffler.de/std/1D65
D = 35 – 80 mm r
ZL52..-DRS
000A44D4000A44D4
KR52..-2RS
000A44DD000A44DD
Dimensions Tightening
torque
D B1 B2 B4 C C1 d 2 r G l G g lg W MA
max. min. Nm
35 19,5 14 31 15,9 2,6 17,1 0,6 – – M8 14 – –
17 32,5 0 15,9 0,8 17,1 0,6 M121,5 17 – – 6 45
40 14 10 21,5 11 2 20 0,6 – – M8 15 – –
20,5 16 34 15,9 3,5 20 0,6 – – M8 15 – –
17 36,5 0 15,9 0,8 20 0,6 M161,5 19 – – 8 70
47 14,5 12 24,5 12 2 22,9 0,6 – – M8 16 – –
21,5 18 37,5 17,5 3,5 22,9 0,6 – – M8 15 – –
18,5 40,5 0 17,5 0,8 22,9 0,6 M181,5 21 – – 8 115
52 17 14 28,5 14 2 26,8 1 – – M10 18 – –
25,5 20 43 20,6 4 26,8 1 – – M10 18 – –
22,5 41,5 0 20,6 1,5 26,8 1 M201,5 21 – – 10 160
62 18 16 31 15 2 30,3 1 – – M10 19 – –
25,5 25 47,5 20,6 4 30,3 1 – – M10 18 – –
21,5 49,5 0 20,6 0,8 30,3 1 M241,5 25 – – 10 290
72 29 30 56,5 23,8 4,5 37,3 1 – – M16 20 – –
25 49,5 0 23,8 0,8 37,3 1 M241,5 25 – – 10 290
80 33,5 36 66,5 27 5,5 42,4 1,1 – – M16 20 – –
28 63 0 27 1 42,4 1,1 M301,5 32 – – 12 600https://www.schaeffler.de/std/1D65
1446 HR 1
r D = 35 – 80 mm
Stud type ball bearing track rollers with eccentric collar, sealed
Studtype ballbearingtrackrollers witheccentric collar,sealed
Stud type ball bearing track rollers
With eccentric collar
Sealed
D = 35 – 80 mm
ZLE52..-2Z
000A47A8000A47A8
medias uhttps://www.schaeffler.de/std/1D9A
Main dimensions Basic load ratings Fatigue
limit load
Speed Mass Designation
D de B dyn.
C r w
stat.
C0r w
C ur w nD G m u1435|2.12
u1435|2.13
N N N min–1 g
35 18 65,5 8 800 6 000 305 11 100 250 ZLE5201-2Z
40 22 66,5 10 800 7 500 385 10 200 350 ZLE5202-2Z
52 24 76 16 900 12 300 640 7 300 460 ZLE5204-2Z
62 24 88 19 700 15 400 790 6 500 640 ZLE5205-2Z
80 35 99 33 000 26 500 1 410 4 650 1 300 ZLE5207-2Z
Dimensions Tightening
torque
Designation
D B1 B2 C C 1 d2 r W W1 e B e g lg G lG M A u1435|2.12
u1435|2.13
max. min. min. Nm
35 20,5 45 15,9 2 25 0,6 15 9 1 18 M6 6 M121,5 24 30 ZLE5201-2Z
40 21,5 45 15,9 2,5 27 0,6 17 10 1 16 M81 8 M14 25 40 ZLE5202-2Z
52 26 50 20,6 2,5 30 1 22 17 1 18 M81 8 M201,5 29 150 ZLE5204-2Z
62 32 56 20,6 8 30 1 22 17 1 25 M81 8 M201,5 28 150 ZLE5205-2Z
80 35 64 27 3 45 1,1 40 27 1,5 29 M81 8 M301,5 32 540 ZLE5207-2Zhttps://www.schaeffler.de/std/1D65
r D = 35 – 80 mm
Stud type ball bearing track rollers with eccentric collar, sealed
Studtype ballbearingtrackrollers witheccentric collar,sealed
Stud type ball bearing track rollers
With eccentric collar
Sealed
D = 35 – 80 mm
ZLE52..-2Z
000A47A8000A47A8
medias uhttps://www.schaeffler.de/std/1D9A
Main dimensions Basic load ratings Fatigue
limit load
Speed Mass Designation
D de B dyn.
C r w
stat.
C0r w
C ur w nD G m u1435|2.12
u1435|2.13
N N N min–1 g
35 18 65,5 8 800 6 000 305 11 100 250 ZLE5201-2Z
40 22 66,5 10 800 7 500 385 10 200 350 ZLE5202-2Z
52 24 76 16 900 12 300 640 7 300 460 ZLE5204-2Z
62 24 88 19 700 15 400 790 6 500 640 ZLE5205-2Z
80 35 99 33 000 26 500 1 410 4 650 1 300 ZLE5207-2Z
Dimensions Tightening
torque
Designation
D B1 B2 C C 1 d2 r W W1 e B e g lg G lG M A u1435|2.12
u1435|2.13
max. min. min. Nm
35 20,5 45 15,9 2 25 0,6 15 9 1 18 M6 6 M121,5 24 30 ZLE5201-2Z
40 21,5 45 15,9 2,5 27 0,6 17 10 1 16 M81 8 M14 25 40 ZLE5202-2Z
52 26 50 20,6 2,5 30 1 22 17 1 18 M81 8 M201,5 29 150 ZLE5204-2Z
62 32 56 20,6 8 30 1 22 17 1 25 M81 8 M201,5 28 150 ZLE5205-2Z
80 35 64 27 3 45 1,1 40 27 1,5 29 M81 8 M301,5 32 540 ZLE5207-2Zhttps://www.schaeffler.de/std/1D65
www.schaeffler.de/en HR 1 1447
D = 27,5 – 46,8 mm rTrack rollers with plastic outer tyre, sealed
Track rollerswithplastic outertyre,sealed
Track rollers
With plastic outer tyre
Sealed
D = 27,5 – 46,8 mm
KLRZ..-2RSR (top)
KLRZ..-2Z (bottom)
000A47B1000A47B1
KLRU..-2Z
000A47BA000A47BA
medias uhttps://www.schaeffler.de/std/1D9B
1) Valid for installation as track roller. The values apply for operating temperatures up to max. +40 °C.
Main dimensions Basic load
ratings
of track
roller1)
Deep groove
ball bearing
fitted
Basic load
ratings of
deep groove
ball bearing
Mass Designation Dimensions
D d C Fr per dyn.
Cr
stat.
C0r
m u1435|2.12
u1435|2.13
b D1 R r
+0,3
–0,3 N N N g min.
27,5 +0,05
–0,05
8 11 250 608-2Z 3 500 1 370 16 KLRU082811-2Z 7 20 500 0,3
30 +0,3
–0,3
10 10 250 6000-2Z 4 850 1 970 50 KLRZ103010-2Z 8 24 – 0,3
34,8 +0,05
–0,05
12 12 340 6001-2Z 5 400 2 370 30 KLRU123512-2Z 8 26 300 0,3
41 +0,3
–0,3
12 16 500 6201-2RSR 7 300 3 100 50 KLRZ124116-2RSR 10 29,5 – 0,6
46,8 +0,05
–0,05
12 20 500 6201-2Z 7 300 3 100 45 KLRU124720-2Z 10 28,5 300 0,6
46,8 +0,05
–0,05
15 20 500 6202-2Z 8 200 3 750 50 KLRU154720-2Z 11 31,5 300 0,6https://www.schaeffler.de/std/1D65
D = 27,5 – 46,8 mm rTrack rollers with plastic outer tyre, sealed
Track rollerswithplastic outertyre,sealed
Track rollers
With plastic outer tyre
Sealed
D = 27,5 – 46,8 mm
KLRZ..-2RSR (top)
KLRZ..-2Z (bottom)
000A47B1000A47B1
KLRU..-2Z
000A47BA000A47BA
medias uhttps://www.schaeffler.de/std/1D9B
1) Valid for installation as track roller. The values apply for operating temperatures up to max. +40 °C.
Main dimensions Basic load
ratings
of track
roller1)
Deep groove
ball bearing
fitted
Basic load
ratings of
deep groove
ball bearing
Mass Designation Dimensions
D d C Fr per dyn.
Cr
stat.
C0r
m u1435|2.12
u1435|2.13
b D1 R r
+0,3
–0,3 N N N g min.
27,5 +0,05
–0,05
8 11 250 608-2Z 3 500 1 370 16 KLRU082811-2Z 7 20 500 0,3
30 +0,3
–0,3
10 10 250 6000-2Z 4 850 1 970 50 KLRZ103010-2Z 8 24 – 0,3
34,8 +0,05
–0,05
12 12 340 6001-2Z 5 400 2 370 30 KLRU123512-2Z 8 26 300 0,3
41 +0,3
–0,3
12 16 500 6201-2RSR 7 300 3 100 50 KLRZ124116-2RSR 10 29,5 – 0,6
46,8 +0,05
–0,05
12 20 500 6201-2Z 7 300 3 100 45 KLRU124720-2Z 10 28,5 300 0,6
46,8 +0,05
–0,05
15 20 500 6202-2Z 8 200 3 750 50 KLRU154720-2Z 11 31,5 300 0,6https://www.schaeffler.de/std/1D65