οΏ½
βShell Type Caged Needle Roller Bearings
βShell Type Grease Retained Full Complement Needle Roller Bearings
β Structure and featuresShell Type Needle Roller Bearings are light-
weight bearings with large load ratings. They employa shell type outer ring made from a thin special-steelplate which is accurately drawn, carburized andquenched, thus providing the lowest sectional heightamong the needle roller bearings.There are two types of bearings available in thisseries; the caged type and the full complement type.The appropriate type can be selected according to theoperating conditions. The caged type has a structurein which the needle rollers are accurately guided bythe cage and thrust rings. It is useful for applicationsat high-speed rotation. The full complement type nee-dle roller bearing, on the other hand, is suitable forheavy-load applications at low-speed rotation.Since these bearings are press-fitted into the housing,no fixtures for axial positioning are needed. They areideal for use in mass-produced articles that requireeconomy, and have a wide variety of applications.
Structures of Shell Type Needle Roller Bearings
Standard Caged Type
Caged and closed end type
Caged type with two seals
Grease retained full complement type
Outer ring
Thrust ring
Cage
Needle Roller
Outer ring
Thrust ring
Cage
Needle Roller
Outer ring
Thrust ring
Cage
Seal
Outer ring
Needle Roller
Needle Roller
B1 B2
οΏ½
Table 2.1 Measuring gauges for metric seriesbearings
FwNominal roller set
bore diameter
Ring gauge
TAβ¦Z(1) TLAβ¦Z(2) Go No-go
Plug gauge
4
5
6
7
8
9
10
12
13
14
15
16
17
18
19
20
21
22
24
25
26
28
29
30
32
35
37
38
40
45
50
55
60
62
65
70
οΌοΌοΌοΌ
14.992
15.992
16.992
18.991
οΌ21.991
21.991
23.991
23.991
24.991
26.991
26.991(4)
27.991(4)
28.991
28.991(5)
29.991(5)
30.989(6)
31.989(6)
32.989
33.989
36.989
37.989
39.989
41.989
44.989
46.989
47.989
49.989
54.988
61.988
66.988
71.988
73.988
76.988
81.987
7.981
8.981
9.981
10.977
11.977
12.977
13.977
15.977(3)
17.977(3)
18.972
19.972
20.972
21.972
22.972
23.972
οΌ
25.972
οΌ
27.972
οΌ
31.967
οΌ34.967
οΌ36.967
οΌ41.967
οΌοΌ
46.967
51.961
57.961
62.961
οΌοΌοΌοΌ
4.004
5.004
6.004
7.005
8.005
9.005
10.005
12.006
13.006
14.006
15.006
16.006
17.006
18.006
19.007
20.007
21.007
22.007
24.007
25.007
26.007
28.007
29.007
30.007
32.009
35.009
37.009
38.009
40.009
45.009
50.009
55.010
60.010
62.010
65.010
70.010
4.016
5.016
6.016
7.020
8.020
9.020
10.020
12.024
13.024
14.024
15.024
16.024
17.024
18.024
19.028
20.028
21.028
22.028
24.028
25.028
26.028
28.028
29.028
30.028
32.034
35.034
37.034
38.034
40.034
45.034
50.034
55.040
60.040
62.040
65.040
70.040Notes(1) Also applicable to TAM and YT
(2) Also applicable to TLAM, YTL, TLAβ¦UU(3) The upper value is for TLA 1210Z model, and the lower
value is for TLA 1212Z model.(4) The lower value is for TA 202820Z model, and the upper
value is for models other than TA 202820Z model.(5) The lower value is for TA 223016Z and TA 223020Z
models, and the upper value is for models other thanthose models.
(6) The lower value is for TA 243216Z and TA 243220Zmodels, and the upper value is for models other thanthose models.
unit: mmTable 2.2 Measuring gauges for inch series
bearings
FwNominal roller set
bore diameter
Ring gauge
BAβ¦Z(1) BHAβ¦Z(2) Go No-go
Plug gauge
3.969
4.762
6.350
7.938
9.525
11.112
12.700
14.288
15.875
17.462
19.050
20.638
22.225
23.812
25.400
26.988
28.575
30.162
31.750
33.338
34.925
38.100
41.275
44.450
47.625
50.800
52.388
53.975
57.150
66.675
69.850
7.155
8.730
11.125
12.713
14.300
15.888
17.475
19.063
20.650
22.238
25.387
26.975
28.562
30.150
31.737
33.325
34.912
38.087
38.087
41.262
41.262
47.612
50.787
53.962
57.137
60.312
οΌ63.487
66.662
76.187
79.362
οΌοΌοΌ
14.300
15.888
17.475
19.063
20.650
22.238
23.825
26.975
28.562
30.150
οΌ33.325
οΌ38.087
οΌ41.262
οΌ44.437
οΌοΌ
57.137
οΌοΌ
64.280
οΌοΌοΌοΌ
3.990
4.783
6.388
7.976
9.563
11.151
12.738
14.326
15.913
17.501
19.063
20.650
22.238
23.825
25.413
27.000
28.588
30.175
31.763
33.350
34.938
38.113
41.288
44.463
47.638
50.815
52.413
53.990
57.165
66.700
69.875
4.016
4.808
6.414
8.001
9.588
11.176
12.764
14.351
15.938
17.526
19.088
20.676
22.263
23.851
25.438
27.026
28.613
30.201
31.788
33.378
34.966
38.143
41.318
44.496
47.671
50.848
52.451
54.028
57.203
66.738
69.914
unit: mm
unit: mm
Notes(1) Also applicable to BAM and YB(2) Also applicable to BHAM and YBH
Table 3 Tolerances of outer ring width C
Series
Metric
Inch
Tolerance
0 ο½οΌ0.20
0 ο½οΌ0.25
B41N=0.102kgf=0.2248lbs.1mm=0.03937inch
β TypesNumerous varieties of Shell Type Needle RollerBearings are available as shown in Table 1.
Shell Type Caged Needle Roller Bearings
Standard typeThis type has a narrow gap between the bore of themarked-side flange of the outer ring (brand, bearingnumber, etc. are marked) and the shaft, which pre-vents grease leaks and the entry of foreign particles.This type has wide applications.
Closed end typeThis type is completely closed on one side of theouter ring, and is ideal for use when perfect closing ofshaft ends is desired.The shape of the closed end surface of the outer ringis divided into two types, and the dimensions t1 and t2
in the illustrations shown in the dimension tablesapply to the bearings with the roller set bore diame-ters, Fw > 22 and Fw⦠22, respectively.
Type with seals at both sidesThis type has a wider outer ring than the standardtype and is installed with seals consisting of a rein-forcing ring and special synthetic rubber to preventgrease leaks and the entry of foreign particles.
Shell Type Grease Retained Full ComplementNeedle Roller Bearings
This type has full complement rollers which extend tothe full width of the outer ring raceway. It can, there-fore, withstand heavy bearing loads and is most suit-able for low and medium rotational speeds as well asrocking motions. As lubricating grease is prepackedwith the rollers, the bearing can be operated immedi-ately after being fitted.
Table 1 Type of bearing
Type
Series
Metric series
Inch series
οΌ
Heavy duty
οΌ
Heavy duty
TLA β¦Z
TA β¦Z
BA β¦Z
BHAβ¦Z
TLAM
TAM
BAM
BHAM
TLAβ¦UU
οΌ
οΌ
οΌ
YTL
YT
YB
YBH
Caged Full complement
Standard Closed end With sealsοΌ1οΌGrease retained
Note(1) When the heavy duty type with seals or the closed end
type with one seal is required, please consult .
Remark A "W" is added to the model code to indicate that therolling elements are of the double-row type.Example TAW 5045 Z
β Identification NumberThe identification number of Shell Type Needle RollerBearings consists of a model code and dimensions.Examples of the arrangement are shown below.When using with inner rings, the assembled innerrings shown in the dimension tables are used. Anexample in this case is also shown below. Inner ringsare delivered separately.
β AccuracyThe outer rings of Shell Type Needle Roller Bearingsare thin and therefore cannot avoid deformation dueto heat treatment. It is thus not appropriate to takedirect measurements of the bearing. The roller setbore diameter is measured using a plug gauge ortapered gauge after press-fitting the bearing to a suit-able ring gauge. The gauge specifications are shownin Tables 2.1 and 2.2.Tolerances of outer ring width C are shown in Table3.
Model code Dimensions
TA 18 Z
Type of bearing
20
Examples of identification number
Example 1
Example 2 (With inner ring)
Identification number ofInner Ring
TA 1820 Z γγIRT 1520 οΌ
Identification number of Shell Type Needle Roller Bearing
Outer ring widthοΌ20mmοΌ
Roller set bore diameterοΌ18mmοΌ
B3
οΏ½β Lubrication β Oil HoleBearings with prepacked grease are shown in Table6. ALVANIA GREASE S2 (SHOWA SHELL SEKIYUK.K.) is prepacked as the lubricating grease.In the case of bearings without prepacked grease,perform proper lubrication for use. If the bearings areoperated without lubrication, the wear of the rollercontact surfaces will increase and the bearing life willbe shortened.
For Shell Type Needle Roller Bearings with an oilhole, "OH" is appended to the end of the identificationnumber.
Example TA 2525 Z OHThe symbol "OH" is not marked on the bearing itself,but is shown on its packaging, etc. When bearingswith multiple oil holes are required, please consult
.
β MountingShell Type Needle Roller Bearings should be pressedinto the housings gently using the appropriate tool asshown in Fig. 1, with their marked end surface up. Asthe outer ring is thin, it must never be struck directlywith a hammer.Since the outer rings of Shell Type Needle RollerBearings are firmly fitted to housing bores with inter-ference, it is unnecessary to fix them axially. Fig. 2shows mounting examples.
β Specifications of shaft and housingShell Type Needle Roller Bearings are commonlyused without an inner ring. In such cases, the surfacehardness of the raceway surface should be 58ο½64HRC and the surface roughness should not exceed0.2ΞΌmRa. However, when the operating condition isnot severe, a surface roughness 0.8ΞΌmRa or lesscan be used.If the surface hardness is low, the load rating must becorrected by the hardness factor shown on page A20.When the shaft cannot be heat treated and finishedby grinding, the use of Inner Rings for ShellType Needle Roller Bearings (See page H1.) is rec-ommended.
β Static Safety FactorSince Shell Type Needle Roller Bearings employ anouter ring made from a thin steel plate which is drawn,carburized and quenched, excessively large loadsmust be avoided. The required static safety factor isusually more than 3.
Fig.2 Mounting examples
Fig.1 Example of mounting tool
Table 6 Bearings with prepacked grease
Bearing type
Series
Metric series
Inch series
TLAοΌTLAMοΌYTL
TAοΌTAMοΌYT
BAοΌBAMοΌYB
BHAοΌBHAMοΌYBH
Full complement
Grease retainedWith sealsClosed endStandard
Caged
Γ
Γ
Γ
Γ
Γ
Γ
Γ
Γ
γ
οΌ
οΌ
οΌ
γ
γ
γ
γ
γοΌWith prepacked grease ΓοΌWithout prepacked grease
B61N=0.102kgf=0.2248lbs.1mm=0.03937inch
β FitAs the outer ring is thin, the correct dimensions andaccuracy of Shell Type Needle Roller Bearings areobtained only after they have been press-fitted intothe housing bore. Bearing accuracy is directly affect-ed by housing dimensions, shape and rigidity. Thisshould be taken into account when considering fit andaccuracy. The radial clearance after fitting the bear-ing to the shaft and the housing bore varies with theirtolerances.
Table 4 shows the recommended fit for Shell TypeNeedle Roller Bearings.Table 5 shows a calculation example of radial clear-ance after fitting. This calculation applies to bearingswithout inner ring to be fitted into rigid steel or castiron housings. When the housing is made of lightalloy or a thin steel pipe, it is necessary to checkdimensions by actual measurement.Generally, when making the radial clearance smaller,it is recommended that the shaft diameter beincreased, without decreasing the housing bore diam-eter.
Table 4 Recommended fit
Table 5 Calculation example of radial clearance after fitting
Type of bearing
TAβ¦ZοΌBAβ¦ZοΌBHA β¦ZοΌTAMοΌBAMοΌBHAMοΌYTοΌYBοΌYBH
TLA β¦ZοΌTLAMοΌYTLοΌTLAβ¦UU
Housing material
SteelCast iron
h6
h6
h6
h6
k5(j5)
k5(j5)
k5(j5)
k5(j5)
J7
M7(N7)
N7
R7(S7)
Light alloy(Thin steel pipe)
SteelCast iron
Light alloy(Thin steel pipe)
Tolerance class
Shaft (1)
Without inner ring With inner ringHousing bore
Note(1) When housings are made of light alloy or a thin steel pipe, the roller set bore diameter is greatly affected by the housing thickness andshape. Therefore, before mass-production assembly, assembly tests should be carried out to confirm the amount of dimensionalchange and to determine the tolerance of the shaft which will give normal clearances.
Calculation procedure
1 Dimension of roller set bore diameter of bearing after it has been press-fitted into the ring gauge.Dimension of ring gauge (D0): See Tables 2.1 and 2.2 on page B4.Max. value of roller set bore dia. (Fw max): No-go dimension of plug gaugeMin. value of roller set bore dia. (Fw min ): Go dimension of plug gauge
2 Dimension of housing boreMax. value of housing bore (Dmax): See the dimension table. Min. value of housing bore (Dmin ): See the dimension table.
3 Dimension of roller set bore diameter of bearing after it has been press-fitted into the housing boreMax. value of roller set bore dia.(Fwe max)οΌ(DmaxοΌD0) οΌFw maxMin. value of roller set bore dia.(Fwe min )οΌ(Dmin οΌD0) οΌFw min
4 Dimension of shaftMax. value of shaft dia. (Fmax): See the dimension table.Min. value of shaft dia. (Fmin ): See the dimension table.
5 Radial clearance after mountingMax. value of radial clearance(Gr max)οΌFwe maxοΌFminMin. value of radial clearance(G r min)οΌFwe minοΌFmax
From Table 2.1 on page B4D0 οΌ25.972Fw maxοΌ20.028Fw minοΌ20.007
From the dimension table on page B14, DmaxοΌ25.993Dmin οΌ25.972
From the equations,Fwe maxοΌ20.049Fwe min οΌ20.007
From the dimension table on page B14, FmaxοΌ20.000FminοΌ19.987
From the equations, Gr maxοΌ0.062 G r minοΌ0.007 The radial clearanceafter mounting becomes0.007~0.062 mm.
Example of TLA 2020 Z
unit: mm
D : Housing bore diameterFw : Roller set bore diameterF : Shaft diameterG r : Radial clearance
B5
οΏ½
4.000
5.000
6.000
7.000
8.000
8.000
9.000
9.000
10.000
10.000
3.992
4.992
5.992
6.991
7.991
7.991
8.991
8.991
9.991
9.991
β
β
β
β
β
15.010
β
16.010
β
17.010
β
β
β
β
β
14.992
β
15.992
β
16.992
7.996
8.996
9.996
10.995
11.995
β
12.995
β
13.995
β
7.981
8.981
9.981
10.977
11.977
β
12.977
β
13.977
β
1 3503 010
1 8804 320
2 100
2 490
3 320
3 4705 7808 3407 530
3 5004 460
5 1406 9609 690
3 8704 9206 390
4 1505 5906 9209 990
1 0102 900
1 6004 750
1 900
2 450
3 670
2 8805 5708 9207 950
4 0405 510
4 8807 210
11 200
4 7406 4609 040
3 7805 5407 300
11 700
75 00040 000
65 00030 000
55 000
50 000
45 000
45 00045 00045 00019 000
45 00045 000
45 00045 00017 000
40 00040 00040 000
40 00040 00040 00040 000
Basic dynamicload rating
C
N
Basic staticload rating
C0
N
Allowablerotationalspeed(1)
rpm
44
55
6
7
8
8888
99
999
101010
10101010
88
99
10
11
12
15151515
1313
161616
141414
17171717
88
99
9
9
10
10152010
1012
121612
101215
10121520
Fw D
Assembledinner ring
ββ
ββ
β
β
β
ββββ
ββ
βββ
IRT 710
IRT 712
IRT 715
IRT 710
IRT 712
IRT 715
β
C
1β
1β
1
1
1
1.31.31.3β
11
1.31.3β
111
1.31.31.31.3
t2Max.
TAβ¦Z TLAβ¦Z TAM TLAM YT YTL
Standard mounting dimensions mm
Max. Min. Max. Min.J7
Housing bore dia.
Max. Min.N7h6
Shaft dia.
Boundary dimensionsmm
B81N=0.102kgf=0.2248lbs.1mm=0.03937inch
Note(1) Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remark Shell Type Grease Retained Full Complement Needle Roller Bearings are provided with prepacked grease. Standard type and closed
end type bearings are not provided with prepacked grease, so perform proper lubrication when using these types of bearings.
Shaftdia.
mm
Identification number
Mass(Ref. )
g
Standard
4
5
6
7
8
9
10
ββ
ββ
β
β
β
TA 810 ZTA 815 ZTA 820 Zβ
ββ
TA 912 ZTA 916 Zβ
βββ
TA 1010 ZTA 1012 ZTA 1015 ZTA 1020 Z
ββ
ββ
β
β
β
6.79.7
12.9β
ββ
8.711.4β
βββ
7.99.3
11.515.4
ββ
ββ
β
β
β
TAM 810TAM 815TAM 820β
ββ
TAM 912TAM 916β
βββ
TAM 1010TAM 1012TAM 1015TAM 1020
ββ
ββ
β
β
β
7.110.113.3β
ββ
9.211.9β
βββ
8.51012.216
TLA 48 Zβ
TLA 59 Zβ
TLA 69 Z
TLA 79 Z
TLA 810 Z
ββββ
TLA 910 ZTLA 912 Z
βββ
TLA 1010 ZTLA 1012 ZTLA 1015 Z
ββββ
1.54β
1.9β
2.2
2.5
3.1
ββββ
3.44
βββ
3.74.45.5
ββββ
TLAM 48β
TLAM 59β
TLAM 69
TLAM 79
TLAM 810
ββββ
TLAM 910TLAM 912
βββ
TLAM 1010TLAM 1012TLAM 1015
ββββ
1.67β
2β
2.3
2.7
3.3
ββββ
3.64.3
βββ
44.85.9
ββββ
βYTL 48
βYTL 59
β
β
β
βββ
YT 810
ββ
ββ
YT 912
βββ
ββββ
β1.73
β2.4
β
β
β
βββ7.7
ββ
ββ
10.1
βββ
ββββ
Mass(Ref. )
g
Closed end Mass(Ref. )
g
Standard Mass(Ref. )
g
Closed end Mass(Ref. )
g
Grease retained
Shaft dia. 4οΌ10mm
SHELL TYPE NEEDLE ROLLER BEARINGS
B7
οΏ½
12.000
12.000
12.000
13.000
14.000
14.000
15.000
15.000
11.989
11.989
11.989
12.989
13.989
13.989
14.989
14.989
15.995
17.995
β
18.993
19.993
β
20.993
β
15.977
17.977
β
18.972
19.972
β
20.972
β
β
β
19.012
β
β
22.012
β
22.012
β
β
18.991
β
β
21.991
β
21.991
4 3507 470
6 420
6 0007 440
10 70013 80011 800
6 760
7 0808 950
10 50013 900
7 3809 330
13 600
5 2907 1208 830
12 70016 300
5 81011 800
7 490
6 3108 320
13 30018 30015 200
8 170
8 84012 000
12 00017 200
9 52012 90020 900
5 6808 310
11 00017 60024 200
35 00013 000
35 000
35 00035 00035 00035 00013 000
30 000
30 00030 000
30 00030 000
25 00025 00025 000
25 00025 00025 00025 00025 000
Basic dynamicload rating
C
N
Basic staticload rating
C0
N
Allowablerotationalspeed(1)
rpm
1212
12
1212121212
13
1414
1414
151515
1515151515
1616
18
1919191919
19
2020
2222
212121
2222222222
1010
12
1215202512
12
1216
1620
121622
1012152025
Fw D
Assembledinner ring
IRT 810
IRT 810
IRT 812
IRT 812
IRT 815
ββ
IRT 812
IRT 1012
IRT 1012-2
IRT 1016-2
IRT 1016-2
IRT 1020-2
IRT 1212
IRT 1216
IRT 1222
IRT 1010-1
IRT 1012-1
IRT 1015-1
IRT 1020-1
IRT 1025-1
C
1β
1.3
1.31.31.31.3β
1.3
1.31.3
1.31.3
1.31.31.3
1.31.31.31.31.3
t2Max.
TAβ¦Z TLAβ¦Z TAM TLAM YT YTL
Boundary dimensionsmm
Standard mounting dimensions mm
Max. Min. Max. Min.J7
Housing bore dia.
Max. Min.N7h6
Shaft dia.
B101N=0.102kgf=0.2248lbs.1mm=0.03937inch
SHELL TYPE NEEDLE ROLLER BEARINGS
Note(1) Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remark Shell Type Grease Retained Full Complement Needle Roller Bearings are provided with prepacked grease. Standard type and closed
end type bearings are not provided with prepacked grease, so perform proper lubrication when using these types of bearings.
Shaftdia.
mm
Identification number
Mass(Ref. )
g
Standard
12
13
14
15
ββ
β
TA 1212 ZTA 1215 ZTA 1220 ZTA 1225 Zβ
β
ββ
TA 1416 ZTA 1420 Z
βββ
TA 1510 ZTA 1512 ZTA 1515 ZTA 1520 ZTA 1525 Z
ββ
β
10.513.117.321.5β
β
ββ
18.423
βββ
10.812.915.92125
ββ
β
TAM 1212TAM 1215TAM 1220TAM 1225β
β
ββ
TAM 1416TAM 1420
βββ
TAM 1510TAM 1512TAM 1515TAM 1520TAM 1525
ββ
β
11.51418.322.5β
β
ββ
19.624
βββ
12.314.317.322.526.5
TLA 1210 Zβ
TLA 1212 Z
βββββ
TLA 1312 Z
TLA 1412 ZTLA 1416 Z
ββ
TLA 1512 ZTLA 1516 ZTLA 1522 Z
βββββ
4.3β
8.6
βββββ
9.2
9.813.2
ββ
10.41419.1
βββββ
TLAM 1210β
TLAM 1212
βββββ
TLAM 1312
TLAM 1412TLAM 1416
ββ
TLAM 1512TLAM 1516TLAM 1522
βββββ
4.7β
9.4
βββββ
10.1
10.814.3
ββ
11.515.220.5
βββββ
βYTL 1210
β
ββββ
YT 1212
β
ββ
ββ
βββ
βββββ
β5.1
β
ββββ
12.8
β
ββ
ββ
βββ
βββββ
Mass(Ref. )
g
Closed end Mass(Ref. )
g
Standard Mass(Ref. )
g
Closed end Mass(Ref. )
g
Grease retained
Shaft dia. 12οΌ15mm
B9
οΏ½
17.000
17.000
18.000
18.000
19.000
16.989
16.989
17.989
17.989
18.987
β
24.012
β
25.012
27.012
β
23.991
β
24.991
26.991
22.993
β
23.993
β
β
22.972
β
23.972
β
β
7 960
9 66013 90017 90016 60027 200
8 23010 400
9 10010 10011 90013 70014 50018 600
12 20016 100
10 900
12 70020 40028 10026 00049 000
11 50015 600
12 00013 60016 90020 20021 80030 000
15 70022 600
25 000
25 00025 00025 0009 0009 000
20 00020 000
20 00020 00020 00020 00020 00020 000
20 00020 000
Basic dynamicload rating
C
N
Basic staticload rating
C0
N
Allowablerotationalspeed(1)
rpm
17
161616
1616
222222
2424
121622
1620
1.31.31.3
16.000 15.989 β β 21.993 21.9727 6709 700
14 200
10 20013 80022 400
25 00025 00025 000
IRT 1212-1
IRT 1216-1
IRT 1222-1
1.31.3
16.000 15.989 24.012 23.991 β β11 10014 700
13 30019 100
25 00025 000
IRT 1216-1
IRT 1220-1
1717171717
1818
181818181818
1919
23
2424242424
2424
252525252525
2727
12
1520251525
1216
131517192025
1620
Fw D
Assembledinner ring
β
IRT 1215-2
IRT 1220-2
IRT 1225-2
IRT 1215-2
IRT 1225-2
IRT 1512
IRT 1516
IRT 1513
IRT 1515
IRT 1517
IRT 1519
IRT 1520
IRT 1525
IRT 1516-1
IRT 1520-1
C
1.3
1.31.31.3ββ
1.31.3
1.31.31.31.31.31.3
1.31.3
t2Max.
TAβ¦Z TLAβ¦Z TAM TLAM YT
Boundary dimensionsmm
Standard mounting dimensions mm
Max. Min. Max. Min.J7
Housing bore dia.
Max. Min.N7h6
Shaft dia.
B121N=0.102kgf=0.2248lbs.1mm=0.03937inch
SHELL TYPE NEEDLE ROLLER BEARINGS
Note(1) Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remark Shell Type Grease Retained Full Complement Needle Roller Bearings are provided with prepacked grease. Standard type and closed
end type bearings are not provided with prepacked grease, so perform proper lubrication when using these types of bearings.
Shaftdia.
mm
Identification number
Mass(Ref. )
g
Standard
17
18
19
β
TA 1715 ZTA 1720 ZTA 1725 Zββ
ββ
TA 1813 ZTA 1815 ZTA 1817 ZTA 1819 ZTA 1820 ZTA 1825 Z
TA 1916 ZTA 1920 Z
β
βββ
2025
17.623.529ββ
ββ
16.418.52123.524.530.5
2329
β
TAM 1715TAM 1720TAM 1725ββ
ββ
TAM 1813TAM 1815TAM 1817TAM 1819TAM 1820TAM 1825
TAM 1916TAM 1920
β
19.52531ββ
ββ
18.520.52325.526.532.5
25.531
TLA 1712 Z
βββββ
TLA 1812 ZTLA 1816 Z
ββββββ
ββ
11.5
βββββ
1216.2
ββββββ
ββ
TLAM 1712
βββββ
TLAM 1812TLAM 1816
ββββββ
ββ
β
βββ
YT 1715YT 1725
ββ
ββββββ
ββ
13
βββββ
13.717.9
ββββββ
ββ
β
βββ
20.535.5
ββ
ββββββ
ββ
Mass(Ref. )
g
Closed end Mass(Ref. )
g
Standard Mass(Ref. )
g
Closed end Mass(Ref. )
g
Grease retained
16
βββ
TA 1616 ZTA 1620 Z
βββ
2227
βββ
TAM 1616TAM 1620
10.914.820
ββ
TLA 1612 ZTLA 1616 ZTLA 1622 Z
ββ
12.216.121.5
ββ
TLAM 1612TLAM 1616TLAM 1622
ββ
βββ
ββ
βββ
ββ
Shaft dia. 16οΌ19mm
B11
οΏ½
20.000
20.000
20.000
21.000
19.987
19.987
19.987
20.987
β
27.012
28.012
29.012
β
26.991
27.991
28.991
25.993
β
β
β
25.972
β
β
β
8 74011 10014 50022 300
10 40015 00019 20023 10018 40030 000
16 90026 800
13 30017 60022 10027 500
12 90017 50024 70042 900
14 60023 40032 20041 00030 90058 300
24 30044 600
18 10025 90035 20046 800
20 00020 00020 00020 000
20 00020 00020 00020 0007 5007 500
20 0007 500
19 00019 0007 0007 000
Basic dynamicload rating
C
N
Basic staticload rating
C0
N
Allowablerotationalspeed(1)
rpm
20202020
202020202020
2020
21212121
26262626
272727272727
2828
29292929
12162030
152025301525
2020
16201620
Fw D
Assembledinner ring
βIRT 1716
IRT 1720
IRT 1730
IRT 1515-2
IRT 1520-2
IRT 1525-2
IRT 1530-2
IRT 1515-2
IRT 1525-2
IRT 1520-2
IRT 1520-2
IRT 1716-1
IRT 1720-1
IRT 1716-1
IRT 1720-1
C
1.31.31.31.3
1.31.31.31.3ββ
1.3β
1.31.3ββ
t2Max.
TAβ¦Z TLAβ¦Z TAM TLAM YT
Boundary dimensionsmm
Standard mounting dimensions mm
Max. Min. Max. Min.J7
Housing bore dia.
Max. Min.N7h6
Shaft dia.
B141N=0.102kgf=0.2248lbs.1mm=0.03937inch
SHELL TYPE NEEDLE ROLLER BEARINGS
Note(1) Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remark Shell Type Grease Retained Full Complement Needle Roller Bearings are provided with prepacked grease. Standard type and closed
end type bearings are not provided with prepacked grease, so perform proper lubrication when using these types of bearings.
Shaftdia.
mm
Identification number
Mass(Ref. )
g
Standard
20
21
ββββ
TA 2015 ZTA 2020 ZTA 2025 ZTA 2030 Z
ββ
TA 202820 Zβ
TA 2116 ZTA 2120 Z
ββ
ββββ
2026.53339.5ββ
30β
ββββ
TAM 2015TAM 2020TAM 2025TAM 2030
ββ
TAM 202820β
TAM 2116TAM 2120
ββ
ββββ
22.52935.542ββ
32.5β
ββββ
ββββ
YT 2015YT 2025
βYT 202820
ββ
YT 2116YT 2120
ββββ
ββββ
23.541
β37.5
TLA 2012 ZTLA 2016 ZTLA 2020 ZTLA 2030 Z
ββββββ
ββ
ββββ
13.217.82233
ββββββ
ββ
TLAM 2012TLAM 2016TLAM 2020TLAM 2030
ββββββ
ββ
ββββ
15.219.92435
ββββββ
ββ
Mass(Ref. )
g
Closed end Mass(Ref. )
g
Standard Mass(Ref. )
g
Closed end Mass(Ref. )
g
Grease retained
2531.5ββ
2834.5ββ
ββββ
ββββ
ββ
3139
Shaft dia. 20οΌ21mm
B13
οΏ½
22.000
22.000
22.000
24.000
24.000
21.987
21.987
21.987
23.987
23.987
β
29.012
30.012
31.014
32.014
β
28.991
29.991
30.989
31.989
27.993
β
β
β
β
27.972
β
β
β
β
9 23011 70015 300
6 65011 10016 00019 70023 800
13 20017 50022 60028 200
17 00024 50036 800
14 20018 80023 70029 500
14 30019 30027 300
8 50016 40026 30034 30043 700
18 20026 10036 80048 900
29 20046 70079 900
20 50029 40040 10053 200
18 00018 00018 000
18 00018 00018 00018 00018 000
18 00018 0007 0007 000
16 00016 0006 500
16 00016 0006 5006 500
Basic dynamicload rating
C
N
Basic staticload rating
C0
N
Allowablerotationalspeed(1)
rpm
222222
2222222222
22222222
242424
24242424
282828
2929292929
30303030
313131
32323232
121620
1015202530
16201620
202828
16201620
Fw D
Assembledinner ring
βIRT 1716-2
IRT 1720-2
IRT 1710-2
IRT 1715-2
IRT 1720-2
IRT 1725-2
IRT 1730-2
IRT 1716-2
IRT 1720-2
IRT 1716-2
IRT 1720-2
IRT 2020
IRT 2028
IRT 2028
IRT 2016
IRT 2020
IRT 2016
IRT 2020
C
1.31.31.3
1.31.31.31.31.3
1.31.3ββ
3.43.4β
3.43.4ββ
t1οΌt2Max.
TAβ¦Z TLAβ¦Z TAM TLAMt1 (Fwβ§24)t2 (Fwβ¦22)
YT
Boundary dimensionsmm
Standard mounting dimensions mm
Max. Min. Max. Min.J7
Housing bore dia.
Max. Min.N7h6
Shaft dia.
B161N=0.102kgf=0.2248lbs.1mm=0.03937inch
SHELL TYPE NEEDLE ROLLER BEARINGS
Note(1) Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remark Shell Type Grease Retained Full Complement Needle Roller Bearings are provided with prepacked grease. Standard type and closed
end type bearings are not provided with prepacked grease, so perform proper lubrication when using these types of bearings.
Shaftdia.
mm
Identification number
Mass(Ref. )
g
Standard
22
24
βββ
TA 2210 ZTA 2215 ZTA 2220 ZTA 2225 ZTA 2230 Z
TA 223016 ZTA 223020 Z
ββ
TA 2420 ZTA 2428 Z
β
TA 243216 ZTA 243220 Z
ββ
βββ
1521.52935.542.5
2632.5ββ
3143.5β
2835.5ββ
βββ
TAM 2210TAM 2215TAM 2220TAM 2225TAM 2230
TAM 223016TAM 223020
ββ
TAM 2420TAM 2428
β
TAM 243216TAM 243220
ββ
βββ
18.124.53238.545.5
2935.5ββ
3547β
3239ββ
TLA 2212 ZTLA 2216 ZTLA 2220 Z
βββββ
ββββ
βββ
ββββ
15.621.526.5
βββββ
ββββ
βββ
ββββ
TLAM 2212TLAM 2216TLAM 2220
βββββ
ββββ
βββ
ββββ
18.12429
βββββ
ββββ
βββ
ββββ
βββ
βββββ
ββ
YT 223016YT 223020
ββ
YT 2428
ββ
YT 243216YT 243220
βββ
βββββ
ββ
3240.5
ββ
54
ββ
34.543.5
Mass(Ref. )
g
Closed end Mass(Ref. )
g
Standard Mass(Ref. )
g
Closed end Mass(Ref. )
g
Grease retained
Shaft dia. 22οΌ24mm
B15
οΏ½
25.000
25.000
25.000
26.000
28.000
28.000
24.987
24.987
24.987
25.987
27.987
27.987
β
33.014
33.014
34.014
β
37.014
β
32.989
32.989
33.989
β
36.989
31.992
β
β
β
34.992
β
31.967
β
β
β
34.967
β
9 44012 80016 90022 60028 90035 000
7 99013 40019 50024 10029 100
15 50022 70030 20037 200
15 20020 10024 70030 800
13 80018 300
21 20033 00034 700
13 90020 50029 30042 50058 50075 800
9 90019 30031 10040 80052 000
23 60038 30055 40072 500
22 90032 80043 30057 500
23 50033 600
32 30056 90061 700
15 00015 00015 00015 00015 0006 000
15 00015 00015 00015 00015 000
6 0006 0006 0006 000
15 00015 0006 0006 000
13 00013 000
13 00013 0005 500
Basic dynamicload rating
C
N
Basic staticload rating
C0
N
Allowablerotationalspeed(1)
rpm
252525252525
2525252525
25252525
26262626
2828
282828
323232323232
3333333333
33333333
34343434
3535
373737
121620263826
1015202530
10152025
16201620
1620
203020
Fw D
Assembledinner ring
ββ
IRT 2020-1
IRT 2026-1
IRT 2038-1
IRT 2026-1
IRT 2010-1
IRT 2015-1
IRT 2020-1
IRT 2025-1
IRT 2030-1
IRT 2010-1
IRT 2015-1
IRT 2020-1
IRT 2025-1
IRT 2216
IRT 2220
IRT 2216
IRT 2220
βIRT 2220-1
IRT 2220-1
IRT 2230-1
IRT 2220-1
C
2.82.82.82.82.8β
3.43.43.43.43.4
ββββ
3.43.4ββ
2.82.8
3.43.4β
t1Max.
TAβ¦Z TLAβ¦Z TAM TLAM YT YTL
Boundary dimensionsmm
Standard mounting dimensions mm
Max. Min. Max. Min.J7
Housing bore dia.
Max. Min.N7h6
Shaft dia.
B181N=0.102kgf=0.2248lbs.1mm=0.03937inch
SHELL TYPE NEEDLE ROLLER BEARINGS
Note(1) Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remarks1. "W" in the identification number indicates that rolling elements are arranged in double rows.
2. Shell Type Grease Retained Full Complement Needle Roller Bearings are provided with prepacked grease. Standard type andclosed end type bearings are not provided with prepacked grease, so perform proper lubrication when using these types ofbearings.
Shaftdia.
mm
Identification number
Mass(Ref. )
g
Standard
25
ββββββ
TA 2510 ZTA 2515 ZTA 2520 ZTA 2525 ZTA 2530 Z
ββββ
TA 2616 ZTA 2620 Zββ
ββ
TA 2820 ZTA 2830 Zβ
ββββββ
19.128.536.545.554.5
ββββ
30.538ββ
ββ
4567.5β
ββββββ
TAM 2510TAM 2515TAM 2520TAM 2525TAM 2530
ββββ
TAM 2616TAM 2620ββ
ββ
TAM 2820TAM 2830β
ββββββ
2332.540.54958.5
ββββ
34.542.5ββ
ββ
5072.5β
TLA 2512 ZTLA 2516 ZTLA 2520 ZTLA 2526 ZTLAW2538Z
β
βββββ
ββββ
ββββ
TLA 2816 ZTLA 2820 Z
βββ
19.7263241.558.5β
βββββ
ββββ
ββββ
28.535.5
βββ
TLAM 2512TLAM 2516TLAM 2520TLAM 2526TLAMW2538
β
βββββ
ββββ
ββββ
TLAM 2816TLAM 2820
βββ
23.529.53645.562β
βββββ
ββββ
ββββ
33.540.5
βββ
βββββ
YTL 2526
βββββ
YT 2510YT 2515YT 2520YT 2525
ββ
YT 2616YT 2620
ββ
ββ
YT 2820
βββββ
51.5
βββββ
22.5334557
ββ
3746.5
ββ
ββ
56.5
Mass(Ref. )
g
Closed end Mass(Ref. )
g
Standard Mass(Ref. )
g
Closed end Mass(Ref. )
g
Grease retained
26
28
Shaft dia. 25οΌ28mm
B17
οΏ½
29.000
30.000
30.000
32.000
35.000
35.000
28.987
29.987
29.987
31.984
34.984
34.984
38.014
β
40.014
42.014
β
45.014
37.989
β
39.989
41.989
β
44.989
β
36.992
β
β
41.992
β
β
36.967
β
β
41.967
β
22 00034 20035 500
10 40014 10016 40018 60024 80031 900
13 50016 80024 50031 60036 700
25 40039 50039 900
11 60015 70020 700
14 80018 50027 00034 80040 600
34 20060 30064 100
16 60024 50029 80035 10050 90070 200
16 80022 40036 30050 30060 700
38 60068 40070 100
20 00029 60042 300
19 90026 50043 10059 70072 600
13 00013 0005 000
12 00012 00012 00012 00012 00012 000
12 00012 00012 00012 00012 000
11 00011 0004 500
10 00010 00010 000
10 00010 00010 00010 00010 000
Basic dynamicload rating
C
N
Basic staticload rating
C0
N
Allowablerotationalspeed(1)
rpm
292929
303030303030
3030303030
323232
353535
3535353535
383838
373737373737
4040404040
424242
424242
4545454545
203020
121618202638
1315202530
203020
121620
1215202530
Fw D
Assembledinner ring
IRT 2520
IRT 2530
IRT 2520
βββ
IRT 2520-1
IRT 2526-1
IRT 2538-1
βIRT 2515-1
IRT 2520-1
IRT 2525-1
IRT 2530-1
IRT 2820
IRT 2830
IRT 2820
IRT 3012
βIRT 3020
IRT 3012
IRT 3015
IRT 3020
IRT 3025
IRT 3030
C
3.43.4β
2.82.82.82.82.82.8
3.43.43.43.43.4
3.43.4β
2.82.82.8
3.43.43.43.43.4
t1Max.
TAβ¦Z TLAβ¦Z TAM TLAM YT
Boundary dimensionsmm
Standard mounting dimensions mm
Max. Min. Max. Min.J7
Housing bore dia.
Max. Min.N7h6
Shaft dia.
B201N=0.102kgf=0.2248lbs.1mm=0.03937inch
SHELL TYPE NEEDLE ROLLER BEARINGS
Note(1) Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remarks1. "W" in the identification number indicates that rolling elements are arranged in double rows.
2. Shell Type Grease Retained Full Complement Needle Roller Bearings are provided with prepacked grease. Standard type andclosed end type bearings are not provided with prepacked grease, so perform proper lubrication when using these types ofbearings.
Shaftdia.
mm
Identification number
Mass(Ref. )
g
Standard
29
30
32
35
TA 2920 ZTA 2930 Zβ
ββββββ
TA 3013 ZTA 3015 ZTA 3020 ZTA 3025 ZTA 3030 Z
TA 3220 ZTA 3230 Zβ
βββ
TA 3512 ZTA 3515 ZTA 3520 ZTA 3525 ZTA 3530 Z
4770β
ββββββ
36.54254.56880
57.586β
βββ
38.54862.57897
TAM 2920TAM 2930β
ββββββ
TAM 3013TAM 3015TAM 3020TAM 3025TAM 3030
TAM 3220TAM 3230β
βββ
TAM 3512TAM 3515TAM 3520TAM 3525TAM 3530
5275.5β
ββββββ
42.547.56073.585.5
63.597.5β
βββ
46567085.5
105
βββ
TLA 3012 ZTLA 3016 ZTLA 3018 ZTLA 3020 ZTLA 3026 ZTLAW3038 Z
βββββ
βββ
TLA 3512 ZTLA 3516 ZTLA 3520 Z
βββββ
βββ
23.530.534.5384969
βββββ
βββ
273543.5
βββββ
βββ
TLAM 3012TLAM 3016TLAM 3018TLAM 3020TLAM 3026TLAMW3038
βββββ
βββ
TLAM 3512TLAM 3516TLAM 3520
βββββ
βββ
29364043.554.574.5
βββββ
βββ
34.542.551
βββββ
ββ
YT 2920
ββββββ
βββββ
ββ
YT 3220
βββ
βββββ
ββ
58.5
ββββββ
βββββ
ββ
71.5
βββ
βββββ
Mass(Ref. )
g
Closed end Mass(Ref. )
g
Standard Mass(Ref. )
g
Closed end Mass(Ref. )
g
Grease retained
Shaft dia. 29οΌ35mm
B19
οΏ½
37.000
38.000
40.000
40.000
45.000
45.000
36.984
37.984
39.984
39.984
44.984
44.984
47.014
48.014
β
50.014
β
55.018
46.989
47.989
β
49.989
β
54.988
β
β
46.992
β
51.991
β
β
β
46.967
β
51.961
β
27 80041 80043 300
19 00027 70035 60043 10055 700
12 40016 70022 100
19 50028 40036 60044 30056 70033 40055 300
17 80023 400
30 60039 40047 70061 30047 80059 100
9 5009 5004 000
9 0009 0009 0009 0009 000
8 5008 5008 500
8 5008 5008 5008 5008 5004 0004 000
7 5007 500
7 5007 5007 5007 5003 5003 500
45 40076 70081 300
28 00045 60063 10080 600
112 000
22 80033 70048 200
29 40047 80066 20084 600
116 00059 800
114 000
37 80054 000
54 60075 60096 600
133 00098 200
129 000
Basic dynamicload rating
C
N
Basic staticload rating
C0
N
Allowablerotationalspeed(1)
rpm
373737
3838383838
404040
40404040404040
4545
454545454545
474747
4848484848
474747
50505050505050
5252
555555555555
203020
1520253045
121620
15202530401525
1620
202530402025
Fw D
Assembledinner ring
IRT 3220
IRT 3230
IRT 3220
IRT 3215-1
IRT 3220-1
IRT 3225-1
IRT 3230-1
IRT 3245-1
ββ
IRT 3520
IRT 3515
IRT 3520
IRT 3525
IRT 3530
IRT 3540
IRT 3515
IRT 3525
βIRT 4020
IRT 4020
IRT 4025
IRT 4030
IRT 4040
IRT 4020
IRT 4025
C
3.43.4β
3.43.43.43.43.4
2.82.82.8
3.43.43.43.43.4ββ
2.82.8
3.43.43.43.4ββ
t1Max.
TAβ¦Z TLAβ¦Z TAM TLAM YT
Boundary dimensionsmm
Standard mounting dimensions mm
Max. Min. Max. Min.J7
Housing bore dia.
Max. Min.N7h6
Shaft dia.
B221N=0.102kgf=0.2248lbs.1mm=0.03937inch
SHELL TYPE NEEDLE ROLLER BEARINGS
Note(1) Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remarks1. "W" in the identification number indicates that rolling elements are arranged in double rows.
2. Shell Type Grease Retained Full Complement Needle Roller Bearings are provided with prepacked grease. Standard type andclosed end type bearings are not provided with prepacked grease, so perform proper lubrication when using these types ofbearings.
Shaftdia.
mm
Identification number
Mass(Ref. )
g
Standard
37
38
40
45
TA 3720 ZTA 3730 Z
β
TA 3815 ZTA 3820 ZTA 3825 ZTA 3830 ZTAW 3845 Z
βββ
TA 4015 ZTA 4020 ZTA 4025 ZTA 4030 ZTA 4040 Z
ββ
ββ
TA 4520 ZTA 4525 ZTA 4530 ZTA 4540 Z
ββ
64.5101β
5165.582.5
104149
βββ
5469.586.5
110144ββ
ββ
77102122161ββ
TAM 3720TAM 3730β
TAM 3815TAM 3820TAM 3825TAM 3830TAMW 3845
βββ
TAM 4015TAM 4020TAM 4025TAM 4030TAM 4040ββ
ββ
TAM 4520TAM 4525TAM 4530TAM 4540ββ
73110β
6074.596
114159
βββ
63.579
102120154ββ
ββ
90115135174ββ
βββ
βββββ
TLA 4012 ZTLA 4016 ZTLA 4020 Z
βββββββ
TLA 4516 ZTLA 4520 Z
ββββββ
βββ
βββββ
303949
βββββββ
43.554.5
ββββββ
βββ
βββββ
TLAM 4012TLAM 4016TLAM 4020
βββββββ
TLAM 4516TLAM 4520
ββββββ
βββ
βββββ
404958.5
βββββββ
5667
ββββββ
ββ
YT 3720
βββββ
βββ
βββββ
YT 4015YT 4025
ββ
ββββ
YT 4520YT 4525
ββ81
βββββ
βββ
βββββ63.5
109
ββ
ββββ96
122
Mass(Ref. )
g
Closed end Mass(Ref. )
g
Standard Mass(Ref. )
g
Closed end Mass(Ref. )
g
Grease retained
Shaft dia. 37οΌ45mm
B21
οΏ½
50.000
50.000
55.000
55.000
60.000
62.000
49.984
49.984
54.981
54.981
59.981
61.981
β
62.018
β
67.018
72.018
74.018
β
61.988
β
66.988
71.988
73.988
57.991
β
62.991
β
β
β
57.961
β
62.961
β
β
β
28 80036 900
17 70025 80038 00049 10059 50076 50076 700
29 80038 300
39 60051 20062 00080 00079 90091 500
54 70066 30085 70085 40097 800
20 100
6 5006 500
6 5006 5006 5006 5006 5006 5006 500
5 5005 500
5 5005 5005 5005 5005 5005 500
5 0005 0005 0005 0005 000
4 500
64 10088 400
24 00039 00064 00089 000
114 000157 000158 000
69 40095 700
69 70097 000
124 000172 000172 000205 000
108 000139 000193 000193 000229 000
30 300
Basic dynamicload rating
C
N
Basic staticload rating
C0
N
Allowablerotationalspeed(1)
rpm
5050
50505050505050
5555
555555555555
6060606060
62
5858
62626262626262
6363
676767676767
7272727272
74
2025
12152025304045
2025
202530404550
2530404550
12
Fw D
Assembledinner ring
IRT 4520
IRT 4525
IRT 4512
IRT 4515
IRT 4520
IRT 4525
IRT 4530
IRT 4540
IRT 4545
IRT 5020-1
IRT 5025-1
IRT 5020-1
IRT 5025-1
IRT 5030-1
IRT 5040-1
IRT 5045-1
IRT 5050-1
IRT 5025
IRT 5030
IRT 5040
IRT 5045
IRT 5050
IRT 5212
C
2.82.8
3.43.43.43.43.43.43.4
2.82.8
3.43.43.43.43.43.4
3.43.43.43.43.4
3.4
t1Max.
TAβ¦Z TLAβ¦Z TAM TLAM
Boundary dimensionsmm
Standard mounting dimensions mm
Max. Min. Max. Min.J7
Housing bore dia.
Max. Min.N7h6
Shaft dia.
B241N=0.102kgf=0.2248lbs.1mm=0.03937inch
SHELL TYPE NEEDLE ROLLER BEARINGS
Note(1) Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remarks1. "W" in the identification number indicates that rolling elements are arranged in double rows.
2. Shell Type Grease Retained Full Complement Needle Roller Bearings are provided with prepacked grease. Standard type andclosed end type bearings are not provided with prepacked grease, so perform proper lubrication when using these types ofbearings.
Shaftdia.
mm
Identification number
Mass(Ref. )
g
Standard
50
55
60
62
ββ
TA 5012 ZTA 5015 ZTA 5020 ZTA 5025 ZTA 5030 ZTA 5040 ZTAW 5045 Z
ββ
TA 5520 ZTA 5525 ZTA 5530 ZTA 5540 ZTAW 5545 ZTAW 5550 Z
TA 6025 ZTA 6030 ZTA 6040 ZTAW 6045 ZTAW 6050 Z
TA 6212 Z
ββ
62.578
107134161210230
ββ
116145175230250280
158191250270305
78
ββ
TAM 5012TAM 5015TAM 5020TAM 5025 TAM 5030TAM 5040TAMW 5045
ββ
TAM 5520TAM 5525TAM 5530TAM 5540TAMW 5545TAMW 5550
TAM 6025TAM 6030TAM 6040TAMW 6045TAMW 6050
TAM 6212
ββ
7898.5
123150178230245
ββ
136165195250270300
182215275295330
107
TLA 5020 ZTLA 5025 Z
βββββββ
TLA 5520 ZTLA 5525 Z
ββββββ
βββββ
β
6986
βββββββ
7598.5
ββββββ
βββββ
β
TLAM 5020TLAM 5025
βββββββ
TLAM 5520TLAM 5525
ββββββ
βββββ
β
84.5107
βββββββ
98.5118
ββββββ
βββββ
β
ββ
βββββββ
ββ
ββββββ
βββββ
β
ββ
βββββββ
ββ
ββββββ
βββββ
β
Mass(Ref. )
g
Closed end Mass(Ref. )
g
Standard Mass(Ref. )
g
Closed end Mass(Ref. )
g
Grease retained
Shaft dia. 50οΌ62mm
B23
οΏ½
65.000
70.000
64.981
69.981
77.018
82.022
76.988
81.987
β
β
β
β
56 50068 50088 300
101 000
58 50070 90092 000
105 000
116 000149 000207 000246 000
124 000159 000222 000262 000
4 0004 0004 0004 000
3 5003 5003 5003 500
Basic dynamicload rating
C
N
Basic staticload rating
C0
N
Allowablerotationalspeed(1)
rpm
65656565
70707070
77777777
82828282
25304550
25304050
Fw D
Assembledinner ring
IRT 5525
IRT 5530
IRT 5545
IRT 5550
IRT 6025
IRT 6030
IRT 6040
IRT 6050
C
3.43.43.43.4
3.43.43.43.4
t1Max.
TAβ¦Z TAM
Boundary dimensionsmm
Standard mounting dimensions mm
Max. Min. Max. Min.J7
Housing bore dia.
Max. Min.N7h6
Shaft dia.
B261N=0.102kgf=0.2248lbs.1mm=0.03937inch
SHELL TYPE NEEDLE ROLLER BEARINGS
Note(1) Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remarks1. "W" in the identification number indicates that rolling elements are arranged in double rows.
2. Shell Type Grease Retained Full Complement Needle Roller Bearings are provided with prepacked grease. Standard type andclosed end type bearings are not provided with prepacked grease, so perform proper lubrication when using these types ofbearings.
Shaftdia.
mm
Identification number
Mass(Ref. )
g
Standard
65
70
TA 6525 ZTA 6530 ZTAW 6545 ZTAW 6550 Z
TA 7025 ZTA 7030 ZTA 7040 ZTAW 7050 Z
169205290330
181220290350
TAM 6525TAM 6530TAMW 6545TAMW 6550
TAM 7025TAM 7030TAM 7040TAMW 7050
197230315355
215250320380
ββββ
ββββ
ββββ
ββββ
ββββ
ββββ
ββββ
ββββ
ββββ
ββββ
ββββ
ββββ
Mass(Ref. )
g
Closed end Mass(Ref. )
g
Standard Mass(Ref. )
g
Closed end Mass(Ref. )
g
Grease retained
Shaft dia. 65οΌ70mm
B25
οΏ½
9.525οΌ #/ 8οΌ 15.875οΌ %/ 8οΌ 12.70(.500) 1.3 9.525 9.516 15.885 15.867 4 880 4 740 40 000 β
7.938οΌ %/16οΌ 14.288οΌ (/16οΌ 11.13(.438) 1.3 7.938 7.929 14.298 14.280 4 150 3 730 45 000 β
3.969οΌ %/32οΌ
3.969οΌ %/32οΌ7.144οΌ (/32οΌ
7.144οΌ (/32οΌ
3.96(.156)6.35(.250)
ββ
3.969 3.961 7.152 7.137 1 3502 320
1 2202 440
40 00040 000
ββ
4.762οΌ #/16οΌ 8.731οΌ!!/32οΌ 6.35(.250) β 4.762 4.754 8.739 8.724 2 770 2 700 30 000 β
6.350οΌ !/ 4οΌ
6.350οΌ !/ 4οΌ
6.350οΌ !/ 4οΌ
6.350οΌ !/ 4οΌ
6.350οΌ !/ 4οΌ
11.112οΌ &/16οΌ
11.112οΌ &/16οΌ
11.112οΌ &/16οΌ
11.112οΌ &/16οΌ
11.112οΌ &/16οΌ
6.35(.250)7.92(.312)
11.13(.438)7.92(.312)
11.13(.438)
111ββ
6.350 6.341 11.122 11.104
1 7701 5102 6504 4506 320
1 3901 1202 3104 8707 650
55 00055 00055 00025 00025 000
βββββ
7.938οΌ %/16οΌ
7.938οΌ %/16οΌ
7.938οΌ %/16οΌ
7.938οΌ %/16οΌ
7.938οΌ %/16οΌ
12.700οΌ !/ 2οΌ
12.700οΌ !/ 2οΌ
12.700οΌ !/ 2οΌ
12.700οΌ !/ 2οΌ
12.700οΌ !/ 2οΌ
7.92(.312)9.52(.375)
11.13(.438)14.27(.562)7.92(.312)
1111β
7.938 7.929 12.710 12.692
1 8802 6203 3104 1905 110
1 5602 3903 2204 3606 090
45 00045 00045 00045 00020 000
βββββ
9.525οΌ #/ 8οΌ
9.525οΌ #/ 8οΌ
9.525οΌ #/ 8οΌ
9.525οΌ #/ 8οΌ
9.525οΌ #/ 8οΌ
14.288οΌ (/16οΌ
14.288οΌ (/16οΌ
14.288οΌ (/16οΌ
14.288οΌ (/16οΌ
14.288οΌ (/16οΌ
7.92(.312)9.52(.375)
12.70(.500)14.27(.562)15.88(.625)
11111
9.525 9.516 14.298 14.280
2 2203 0904 1904 9405 660
2 0103 0804 5605 6306 700
40 00040 00040 00040 00040 000
βββββ
9.525οΌ #/ 8οΌ
9.525οΌ #/ 8οΌ
9.525οΌ #/ 8οΌ
9.525οΌ #/ 8οΌ
14.288οΌ (/16οΌ
14.288οΌ (/16οΌ
14.288οΌ (/16οΌ
14.288οΌ (/16οΌ
6.35(.250)9.52(.375)
12.70(.500)15.88(.625)
ββββ
9.525 9.516 14.298 14.2804 4706 9209 210
11 300
5 3609 410
13 60017 800
16 00016 00016 00016 000
ββββ
Basic dynamicload rating
C
N
Basic staticload rating
C0
N
Allowablerotationalspeed(1)
rpm
Boundary dimensions mm(inch)
Fw D C
Standard mounting dimensions mm
Max. Min. Max. Min.
Shaft dia.h6
Housing bore dia.J7t2
Max.
Assembledinner ring
BAβ¦Z BHAβ¦Z BAM BHAM YB
B281N=0.102kgf=0.2248lbs.1mm=0.03937inch
SHELL TYPE NEEDLE ROLLER BEARINGS
Inch Series
33.64.35.4β
3.33.94.65.7β
βββββ
βββββ
ββββ
3.8
β β 6.3 6.6 β
β β β β 1.6
3.54.25.76.37
3.94.66.16.77.4
βββββ
βββββ
βββββ
ββββ
ββββ
ββββ
ββββ
3.45.37.29.1
β β 8.6 β
2.12.53.5ββ
β2.73.7ββ
βββββ
βββββ
βββ
3.24.6
YB 2.5 2.5YB 2.5 4
ββ
ββ
ββ
ββ
Shaft dia.
mm(inch)
Note(1) Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remark Shell Type Grease Retained Full Complement Needle Roller Bearings are provided with prepacked grease. Standard type and closed
end type bearings are not provided with prepacked grease, so perform proper lubrication when using these types of bearings.
Standard Closed end Standard Closed end Grease retainedMass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Identification number
ββ
ββ
ββ
ββ
3.969οΌ %//32οΌ
0.640.96
β β β β YB 344.762οΌ #/16οΌ
BA 44BA 45 ZBA 47 Zββ
βBAM 45BAM 47ββ
βββββ
βββββ
βββ
YB 45YB 47
6.350οΌ !/4οΌ
BA 55 ZBA 56 ZBA 57 ZBA 59 Zβ
BAM 55BAM 56BAM 57BAM 59β
βββββ
βββββ
ββββ
YB 55
7.938οΌ %/16οΌ
BA 65 ZBA 66 ZBA 68 ZBA 69 ZBA 610 Z
BAM 65BAM 66BAM 68BAM 69BAM 610
βββββ
βββββ
βββββ9.525
οΌ #/8οΌ
β β BHA 57 Z BHAM 57 β
ββββ
ββββ
ββββ
ββββ
YB 64YB 66YB 68YB 610
β β BHA 68 Z BHAM 68 β8.2
Shaft dia. 3.969οΌ9.525mm
B27
οΏ½
11.112οΌ &/16οΌ
11.112οΌ &/16οΌ
11.112οΌ &/16οΌ
11.112οΌ &/16οΌ
11.112οΌ &/16οΌ
15.875οΌ %/ 8οΌ
15.875οΌ %/ 8οΌ
15.875οΌ %/ 8οΌ
15.875οΌ %/ 8οΌ
15.875οΌ %/ 8οΌ
9.52(.375)11.13(.438)12.70(.500)15.88(.625)12.70(.500)
1111β
11.112 11.101 15.885 15.867
3 2904 1504 4606 020
10 100
3 4704 6805 1307 550
15 900
35 00035 00035 00035 00014 000
βββββ
11.112οΌ &/16οΌ
11.112οΌ &/16οΌ
17.462οΌ!!/16οΌ
17.462οΌ!!/16οΌ
12.70(.500)12.70(.500)
1.3β
11.112 11.101 17.472 17.454 5 68012 500
5 97015 800
35 00014 000
ββ
12.700οΌ !/ 2οΌ
12.700οΌ !/ 2οΌ
12.700οΌ !/ 2οΌ
12.700οΌ !/ 2οΌ
12.700οΌ !/ 2οΌ
12.700οΌ !/ 2οΌ
17.462οΌ!!/16οΌ
17.462οΌ!!/16οΌ
17.462οΌ!!/16οΌ
17.462οΌ!!/16οΌ
17.462οΌ!!/16οΌ
17.462οΌ!!/16οΌ
7.92(.312)9.52(.375)
11.13(.438)12.70(.500)15.88(.625)19.05(.750)
111111
12.700 12.689 17.472 17.454
2 4903 4704 3804 7106 3507 840
2 5103 8505 1905 7008 380
11 000
30 00030 00030 00030 00030 00030 000
βββ
IRB 58
ββ
12.700οΌ !/ 2οΌ
12.700οΌ !/ 2οΌ
12.700οΌ !/ 2οΌ
12.700οΌ !/ 2οΌ
12.700οΌ !/ 2οΌ
12.700οΌ !/ 2οΌ
17.462οΌ!!/16οΌ
17.462οΌ!!/16οΌ
17.462οΌ!!/16οΌ
17.462οΌ!!/16οΌ
17.462οΌ!!/16οΌ
17.462οΌ!!/16οΌ
6.35(.250)9.52(.375)
11.13(.438)12.70(.500)15.88(.625)19.05(.750)
ββββββ
12.700 12.689 17.472 17.454
5 2608 1509 530
10 80013 40015 800
7 15012 60015 30018 10023 70029 300
12 00012 00012 00012 00012 00012 000
βββ
IRB 58
ββ
12.700οΌ !/ 2οΌ
12.700οΌ !/ 2οΌ
12.700οΌ !/ 2οΌ
12.700οΌ !/ 2οΌ
12.700οΌ !/ 2οΌ
19.050οΌ #/ 4οΌ
19.050οΌ #/ 4οΌ
19.050οΌ #/ 4οΌ
19.050οΌ #/ 4οΌ
19.050οΌ #/ 4οΌ
11.13(.438)12.70(.500)15.88(.625)19.05(.750)15.88(.625)
1.31.31.31.3β
12.700 12.689 19.062 19.041
5 6706 0408 830
11 10016 300
6 1206 650
10 90014 50023 500
30 00030 00030 00030 00012 000
βIRB 58
βββ
Basic dynamicload rating
C
N
Basic staticload rating
C0
N
Allowablerotationalspeed(1)
rpm
Boundary dimensions mm(inch)
Fw D Ct2
Max.
Assembledinner ring
Standard mounting dimensions mm
Max. Min. Max. Min.
Shaft dia.h6
Housing bore dia.J7
BAβ¦Z BHAβ¦Z BAM BHAM YB YBH
B301N=0.102kgf=0.2248lbs.1mm=0.03937inch
SHELL TYPE NEEDLE ROLLER BEARINGS
Inch Series
4.45.36.37.28.9
10.6
5.26.177.99.6
11.3
ββββββ
ββββββ
ββββββ
ββββββ
ββββββ
ββββββ
ββββββ
4.36.77.99.1
11.513.9
βββββ
βββββ
9.110.412.515β
9.911.313.315.8β
ββββ
16
Shaft dia.
mm(inch)
Note(1) Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remark Shell Type Grease Retained Full Complement Needle Roller Bearings are provided with prepacked grease. Standard type and closed
end type bearings are not provided with prepacked grease, so perform proper lubrication when using these types of bearings.
Standard Closed end Standard Closed end Grease retainedMass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Identification number
BA 76 ZBA 77 ZBA 78 ZBA 710 Zβ
BAM 76BAM 77BAM 78BAM 710β
βββββ
βββββ
ββββ
YB 78
4.85.66.47.9β
11.112οΌ &/16οΌ
5.36.278.5β
βββββ
βββββ
ββββ8.2
ββ
ββ
BHA 78 Zβ
BHAM 78β
βYBH 78
ββ
ββ
9.3β
10β
β10.5
BA 85 ZBA 86 ZBA 87 ZBA 88 ZBA 810 ZBA 812 Z
BAM 85BAM 86BAM 87BAM 88BAM 810BAM 812
ββββββ
ββββββ
ββββββ
12.700οΌ !/2οΌ
ββββββ
ββββββ
ββββββ
ββββββ
YB 84YB 86YB 87YB 88YB 810YB 812
βββββ
βββββ
BHA 87 ZBHA 88 ZBHA 810 ZBHA 812 Z
β
BHAM 87BHAM 88BHAM 810BHAM 812β
ββββ
YBH 810
Shaft dia. 11.112οΌ12.700mm
B29
οΏ½
15.875οΌ %/ 8οΌ
15.875οΌ %/ 8οΌ
15.875οΌ %/ 8οΌ
15.875οΌ %/ 8οΌ
15.875οΌ %/ 8οΌ
15.875οΌ %/ 8οΌ
15.875οΌ %/ 8οΌ
15.875οΌ %/ 8οΌ
15.875οΌ %/ 8οΌ
15.875οΌ %/ 8οΌ
20.638οΌ!#/16οΌ
20.638οΌ!#/16οΌ
20.638οΌ!#/16οΌ
20.638οΌ!#/16οΌ
20.638οΌ!#/16οΌ
20.638οΌ!#/16οΌ
20.638οΌ!#/16οΌ
20.638οΌ!#/16οΌ
20.638οΌ!#/16οΌ
20.638οΌ!#/16οΌ
7.92( .312)11.13( .438)12.70( .500)15.88( .625)19.05( .750)22.22( .875)25.40(1.000)
7.92( .312)12.70( .500)19.05( .750)
1.31.31.31.31.31.31.3βββ
15.875 15.864 20.650 20.629
2 8705 0405 4207 3209 020
10 70012 3007 580
12 30017 800
3 2206 6607 310
10 70014 10017 50020 80012 20022 70036 600
25 00025 00025 00025 00025 00025 00025 0009 5009 5009 500
ββ
IRB 68-1
βIRB 612-1
IRB 714
IRB 716
βIRB 68-1
IRB 612-1
15.875οΌ %/ 8οΌ
15.875οΌ %/ 8οΌ
15.875οΌ %/ 8οΌ
15.875οΌ %/ 8οΌ
15.875οΌ %/ 8οΌ
22.225οΌ &/ 8οΌ
22.225οΌ &/ 8οΌ
22.225οΌ &/ 8οΌ
22.225οΌ &/ 8οΌ
22.225οΌ &/ 8οΌ
12.70( .500)15.88( .625)19.05( .750)25.40(1.000)12.70( .500)
1.31.31.31.3β
15.875 15.864 22.237 22.216
6 68010 20012 70017 40015 000
8 02013 80018 50027 60022 400
25 00025 00025 00025 0009 500
IRB 68-1
βIRB 612-1
IRB 716
IRB 68-1
14.288οΌ (/16οΌ
14.288οΌ (/16οΌ
14.288οΌ (/16οΌ
14.288οΌ (/16οΌ
14.288οΌ (/16οΌ
14.288οΌ (/16οΌ
14.288οΌ (/16οΌ
14.288οΌ (/16οΌ
14.288οΌ (/16οΌ
19.050οΌ #/ 4οΌ
19.050οΌ #/ 4οΌ
19.050οΌ #/ 4οΌ
19.050οΌ #/ 4οΌ
19.050οΌ #/ 4οΌ
19.050οΌ #/ 4οΌ
19.050οΌ #/ 4οΌ
19.050οΌ #/ 4οΌ
19.050οΌ #/ 4οΌ
7.92( .312)9.52( .375)
11.13( .438)12.70( .500)15.88( .625)19.05( .750)12.70( .500)15.88( .625)19.05( .750)
1.31.31.31.31.31.3βββ
14.288 14.277 19.062 19.041
2 7603 8504 8605 2207 0508 690
11 60014 30016 800
2 9704 5606 1406 7409 910
13 00020 40026 70033 000
30 00030 00030 00030 00030 00030 00011 00011 00011 000
βββ
IRB 68
βIRB 612
IRB 68
βIRB 612
14.288οΌ (/16οΌ
14.288οΌ (/16οΌ
14.288οΌ (/16οΌ
20.638οΌ!#/16οΌ
20.638οΌ!#/16οΌ
20.638οΌ!#/16οΌ
12.70( .500)15.88( .625)19.05( .750)
1.31.31.3
14.288 14.277 20.650 20.6296 3809 280
11 600
7 33011 90015 900
30 00030 00030 000
IRB 68
βIRB 612
Basic dynamicload rating
C
N
Basic staticload rating
C0
N
Allowablerotationalspeed(1)
rpm
Boundary dimensions mm(inch)
Fw D Ct2
Max.
Assembledinner ring
Standard mounting dimensions mm
Max. Min. Max. Min.
Shaft dia.h6
Housing bore dia.J7
BAβ¦Z BHAβ¦Z BAM BHAM YB YBH
B321N=0.102kgf=0.2248lbs.1mm=0.03937inch
SHELL TYPE NEEDLE ROLLER BEARINGS
5.37.68.7
10.812.915.117.3βββ
6.58.79.9
121416.218.4βββ
ββββββββββ
ββββββββββ
βββββββ6.7
1116.9
βββββ
βββββ
12.614.91824β
13.916.219.325β
ββββ
15.3
Shaft dia.
mm(inch)
Note(1) Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remark Shell Type Grease Retained Full Complement Needle Roller Bearings are provided with prepacked grease. Standard type and closed
end type bearings are not provided with prepacked grease, so perform proper lubrication when using these types of bearings.
Standard Closed end Standard Closed end Grease retainedMass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Identification number
Inch Series
BA 95 ZBA 96 ZBA 97 ZBA 98 ZBA 910 ZBA 912 Zβββ
BAM 95BAM 96BAM 97BAM 98BAM 910BAM 912βββ
βββββββββ
βββββββββ
ββββββ
YB 98YB 910YB 912
4.95.96.97.99.9
11.7βββ
14.288οΌ (/16οΌ
5.86.87.88.9
10.812.6βββ
βββββββββ
βββββββββ
ββββββ
10.112.715.4
βββ
βββ
BHA 98 ZBHA 910 ZBHA 912 Z
BHAM 98BHAM 910BHAM 912
βββ
βββ
βββ
11.413.616.3
12.514.717.4
βββ
BA 105 ZBA 107 ZBA 108 ZBA 1010 ZBA 1012 ZBA 1014 ZBA 1016 Zβββ
BAM 105BAM 107BAM 108BAM 1010BAM 1012BAM 1014BAM 1016βββ
ββββββββββ
ββββββββββ
βββββββ
YB 105YB 108YB 1012
15.875οΌ %/8οΌ
βββββ
βββββ
BHA 108 ZBHA 1010 ZBHA 1012 ZBHA 1016 Z
β
BHAM 108BHAM 1010BHAM 1012BHAM 1016
β
ββββ
YBH 108
Shaft dia. 14.288οΌ15.875mm
B31
οΏ½
26.988οΌ1 !/16οΌ19.050οΌ #/ 4οΌ 19.05( .750) 1.3 19.050 19.037 27.000 26.979 16 600 22 600 20 000 IRB 812-1
19.050οΌ #/ 4οΌ
19.050οΌ #/ 4οΌ
19.050οΌ #/ 4οΌ
19.050οΌ #/ 4οΌ
19.050οΌ #/ 4οΌ
19.050οΌ #/ 4οΌ
25.400οΌ1 οΌ
25.400οΌ1 οΌ
25.400οΌ1 οΌ
25.400οΌ1 οΌ
25.400οΌ1 οΌ
25.400οΌ1 οΌ
9.52( .375)12.70( .500)15.88( .625)19.05( .750)22.22( .875)25.40(1.000)
1.31.31.31.31.31.3
19.050 19.037 25.412 25.391
5 0406 9109 500
11 90014 20016 300
5 8508 780
13 20017 70022 20026 500
20 000 20 000 20 000 20 000 20 000 20 000
βIRB 88-1
IRB 810-1
IRB 812-1
IRB 814-1
IRB 816-1
19.050οΌ #/ 4οΌ
19.050οΌ #/ 4οΌ
19.050οΌ #/ 4οΌ
19.050οΌ #/ 4οΌ
25.400οΌ1 οΌ
25.400οΌ1 οΌ
25.400οΌ1 οΌ
25.400οΌ1 οΌ
6.35( .250)12.70( .500)15.88( .625)19.05( .750)
ββββ
19.050 19.037 25.412 25.391
7 82016 60020 50024 100
10 20026 90035 30043 400
8 0008 0008 0008 000
βIRB 88-1
IRB 810-1
IRB 812-1
17.462οΌ!!/16οΌ
17.462οΌ!!/16οΌ
17.462οΌ!!/16οΌ
17.462οΌ!!/16οΌ
17.462οΌ!!/16οΌ
22.225οΌ &/ 8οΌ
22.225οΌ &/ 8οΌ
22.225οΌ &/ 8οΌ
22.225οΌ &/ 8οΌ
22.225οΌ &/ 8οΌ
9.52( .375)12.70( .500)15.88( .625)19.05( .750)19.05( .750)
1.31.31.31.3β
17.462 17.451 22.237 22.216
4 5306 1408 280
10 20018 700
5 9808 850
13 00017 00040 300
25 00025 00025 00025 0008 500
IRB 86
IRB 88
βIRB 812
IRB 812
17.462οΌ!!/16οΌ
17.462οΌ!!/16οΌ
17.462οΌ!!/16οΌ
17.462οΌ!!/16οΌ
23.812οΌ !%//16οΌ
23.812οΌ !%//16οΌ
23.812οΌ !%//16οΌ
23.812οΌ !%//16οΌ
11.13( .438)12.70( .500)15.88( .625)19.05( .750)
1.31.31.31.3
17.462 17.451 23.824 23.803
6 8607 320
10 50013 200
8 5309 270
14 90019 900
25 00025 00025 00025 000
βIRB 88
βIRB 812
Basic dynamicload rating
C
N
Basic staticload rating
C0
N
Allowablerotationalspeed(1)
rpm
Boundary dimensions mm(inch)
Fw D Ct2
Max.
Assembledinner ring
Standard mounting dimensions mm
Max. Min. Max. Min.
Shaft dia.h6
Housing bore dia.J7
BAβ¦Z BHAβ¦Z BAM BHAM YB
B341N=0.102kgf=0.2248lbs.1mm=0.03937inch
SHELL TYPE NEEDLE ROLLER BEARINGS
1013.51720.523.527
11.715.218.6222528.5
ββββββ
ββββββ
ββββββ
ββββ
ββββ
ββββ
ββββ
8.517.822.527
β β 26.5 28.5 β
79.5
11.814β
8.410.813.215.4β
βββββ
βββββ
ββββ
18.3
ββββ
ββββ
11.913.71619.3
13.515.317.621
ββββ
Shaft dia.
mm(inch)
Note(1) Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remark Shell Type Grease Retained Full Complement Needle Roller Bearings are provided with prepacked grease. Standard type and closed
end type bearings are not provided with prepacked grease, so perform proper lubrication when using these types of bearings.
Standard Closed end Standard Closed end Grease retainedMass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Identification number
Inch Series
BA 116 ZBA 118 ZBA 1110 ZBA 1112 Zβ
BAM 116BAM 118BAM 1110BAM 1112β
βββββ
βββββ
ββββ
YB 111217.462οΌ!!/16οΌ
ββββ
ββββ
BHA 117 ZBHA 118 ZBHA 1110 ZBHA 1112 Z
BHAM 117BHAM 118BHAM 1110BHAM 1112
ββββ
BA 126 ZBA 128 ZBA 1210 ZBA 1212 ZBA 1214 ZBA 1216 Z
BAM 126BAM 128BAM 1210BAM 1212BAM 1214BAM 1216
ββββββ
ββββββ
ββββββ19.050
οΌ #/4οΌββββ
ββββ
ββββ
ββββ
YB 124YB 128YB 1210YB 1212
β β BHA 1212 Z BHAM 1212 β
Shaft dia. 17.462οΌ19.050mm
B33
οΏ½
20.638οΌ!#/16οΌ
20.638οΌ!#/16οΌ
20.638οΌ!#/16οΌ
20.638οΌ!#/16οΌ
20.638οΌ!#/16οΌ
20.638οΌ!#/16οΌ
20.638οΌ!#/16οΌ
20.638οΌ!#/16οΌ
20.638οΌ!#/16οΌ
26.988οΌ1 !/16οΌ
26.988οΌ1 !/16οΌ
26.988οΌ1 !/16οΌ
26.988οΌ1 !/16οΌ
26.988οΌ1 !/16οΌ
26.988οΌ1 !/16οΌ
26.988οΌ1 !/16οΌ
26.988οΌ1 !/16οΌ
26.988οΌ1 !/16οΌ
9.52( .375)12.70( .500)15.88( .625)19.05( .750)22.22( .875)25.40(1.000)31.75(1.250)9.52( .375)
12.70( .500)
1.31.31.31.31.31.31.3ββ
20.638 20.625 27.000 26.979
5 2307 1709 870
12 40014 70016 90021 20013 00017 400
6 3009 450
14 20019 00023 80028 50038 10020 10029 200
19 00019 00019 00019 00019 00019 00019 0007 5007 500
βIRB 98
IRB 910
IRB 912
IRB 914
IRB 916
IRB 920
βIRB 98
20.638οΌ!#/16οΌ
20.638οΌ!#/16οΌ
20.638οΌ!#/16οΌ
20.638οΌ!#/16οΌ
20.638οΌ!#/16οΌ
28.575οΌ1 !/ 8οΌ
28.575οΌ1 !/ 8οΌ
28.575οΌ1 !/ 8οΌ
28.575οΌ1 !/ 8οΌ
28.575οΌ1 !/ 8οΌ
12.70( .500)15.88( .625)19.05( .750)15.88( .625)19.05( .750)
1.31.31.3ββ
20.638 20.625 28.587 28.566
9 50013 80017 30022 90027 200
11 20018 20024 40036 30045 300
19 00019 00019 0007 5007 500
IRB 98
IRB 910
IRB 912
IRB 910
IRB 912
22.225οΌ &/ 8οΌ
22.225οΌ &/ 8οΌ
22.225οΌ &/ 8οΌ
22.225οΌ &/ 8οΌ
30.162οΌ1 #/16οΌ
30.162οΌ1 #/16οΌ
30.162οΌ1 #/16οΌ
30.162οΌ1 #/16οΌ
15.88( .625)19.05( .750)25.40(1.000)19.05( .750)
3.43.43.4β
22.225 22.212 30.176 30.151
14 30018 00023 60028 200
19 50026 10036 90049 000
18 00018 00018 0007 000
βIRB 1012
IRB 1016
IRB 1012
22.225οΌ &/ 8οΌ
22.225οΌ &/ 8οΌ
22.225οΌ &/ 8οΌ
22.225οΌ &/ 8οΌ
22.225οΌ &/ 8οΌ
22.225οΌ &/ 8οΌ
22.225οΌ &/ 8οΌ
22.225οΌ &/ 8οΌ
22.225οΌ &/ 8οΌ
22.225οΌ &/ 8οΌ
28.575οΌ1 !/ 8οΌ
28.575οΌ1 !/ 8οΌ
28.575οΌ1 !/ 8οΌ
28.575οΌ1 !/ 8οΌ
28.575οΌ1 !/ 8οΌ
28.575οΌ1 !/ 8οΌ
28.575οΌ1 !/ 8οΌ
28.575οΌ1 !/ 8οΌ
28.575οΌ1 !/ 8οΌ
28.575οΌ1 !/ 8οΌ
9.52( .375)12.70( .500)19.05( .750)22.22( .875)25.40(1.000)28.58(1.125)34.92(1.375)12.70( .500)19.05( .750)25.40(1.000)
2.82.82.82.82.82.82.8βββ
22.225 22.212 28.587 28.566
5 4307 440
12 80015 30017 60019 80024 10018 10026 30033 800
6 74010 10020 40025 50030 50035 60045 70031 40050 70070 200
18 00018 00018 00018 00018 00018 00018 0007 0007 0007 000
IRB 106
IRB 108
IRB 1012
IRB 1014
IRB 1016
βIRB 1022
IRB 108
IRB 1012
IRB 1016
Basic dynamicload rating
C
N
Basic staticload rating
C0
N
Allowablerotationalspeed(1)
rpm
Boundary dimensions mm(inch)
Fw D C
t1t2
Max.
Assembledinner ring
Standard mounting dimensions mm
Max. Min. Max. Min.
Shaft dia.h6
Housing bore dia.J7
BAβ¦Z BHAβ¦Z YB YBHBAM BHAMt1 (Fwβ§22.225)t2 (Fwβ¦20.638)
B361N=0.102kgf=0.2248lbs.1mm=0.03937inch
SHELL TYPE NEEDLE ROLLER BEARINGS
11.515.623.5273134.542.5βββ
13.817.82629.533.53744.5βββ
ββββββββββ
ββββββββββ
βββββββ20.53141.5
10.714.518.2222528.535.5ββ
12.616.42023.52730.537.5ββ
βββββββββ
βββββββββ
βββββββ
14.119.1
βββββ
βββββ
2023.528.5ββ
22.525.530.5ββ
βββ
30.537
ββββ
ββββ
253039.5β
27.532.542β
βββ
39
Shaft dia.
mm(inch)
Note(1) Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remark Shell Type Grease Retained Full Complement Needle Roller Bearings are provided with prepacked grease. Standard type and closed
end type bearings are not provided with prepacked grease, so perform proper lubrication when using these types of bearings.
Standard Closed end Standard Closed end Grease retainedMass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Identification number
Inch Series
BA 136 ZBA 138 ZBA 1310 ZBA 1312 ZBA 1314 ZBA 1316 ZBA 1320 Zββ
BAM 136BAM 138BAM 1310BAM 1312BAM 1314BAM 1316BAM 1320ββ
βββββββββ
βββββββββ
βββββββ
YB 136YB 138
20.638οΌ!#/16οΌ
βββββ
βββββ
BHA 138 ZBHA 1310 ZBHA 1312 Z
ββ
BHAM 138BHAM 1310BHAM 1312
ββ
βββ
YBH 1310YBH 1312
BA 146 ZBA 148 ZBA 1412 ZBA 1414 ZBA 1416 ZBA 1418 ZBA 1422 Zβββ
BAM 146BAM 148BAM 1412BAM 1414BAM 1416BAM 1418BAM 1422βββ
ββββββββββ
ββββββββββ
βββββββ
YB 148YB 1412YB 1416
22.225οΌ &/8οΌ
ββββ
ββββ
BHA 1410 ZBHA 1412 ZBHA 1416 Z
β
BHAM 1410 BHAM 1412BHAM 1416
β
βββ
YBH 1412
Shaft dia. 20.638οΌ22.225mm
B35
οΏ½
25.400οΌ1 οΌ
25.400οΌ1 οΌ
25.400οΌ1 οΌ
25.400οΌ1 οΌ
25.400οΌ1 οΌ
25.400οΌ1 οΌ
25.400οΌ1 οΌ
25.400οΌ1 οΌ
25.400οΌ1 οΌ
25.400οΌ1 οΌ
25.400οΌ1 οΌ
31.750οΌ1 !/ 4οΌ
31.750οΌ1 !/ 4οΌ
31.750οΌ1 !/ 4οΌ
31.750οΌ1 !/ 4οΌ
31.750οΌ1 !/ 4οΌ
31.750οΌ1 !/ 4οΌ
31.750οΌ1 !/ 4οΌ
31.750οΌ1 !/ 4οΌ
31.750οΌ1 !/ 4οΌ
31.750οΌ1 !/ 4οΌ
31.750οΌ1 !/ 4οΌ
9.52( .375)11.13( .438)12.70( .500)15.88( .625)19.05( .750)22.22( .875)25.40(1.000)31.75(1.250)12.70( .500)19.05( .750)25.40(1.000)
2.82.82.82.82.82.82.82.8βββ
25.400 25.387 31.764 31.739
6 0107 7208 240
11 30014 20016 90019 40024 40019 40028 20036 300
8 02011 10012 00018 10024 30030 40036 30048 50036 00058 00080 300
15 00015 00015 00015 00015 00015 00015 00015 0006 0006 0006 000
ββ
IRB 128
βIRB 1212
IRB 1214
IRB 1216
IRB 1220
IRB 128
IRB 1212
IRB 1216
25.400οΌ1 οΌ
25.400οΌ1 οΌ
25.400οΌ1 οΌ
25.400οΌ1 οΌ
25.400οΌ1 οΌ
25.400οΌ1 οΌ
25.400οΌ1 οΌ
25.400οΌ1 οΌ
25.400οΌ1 οΌ
25.400οΌ1 οΌ
33.338οΌ1 %/16οΌ
33.338οΌ1 %/16οΌ
33.338οΌ1 %/16οΌ
33.338οΌ1 %/16οΌ
33.338οΌ1 %/16οΌ
33.338οΌ1 %/16οΌ
33.338οΌ1 %/16οΌ
33.338οΌ1 %/16οΌ
33.338οΌ1 %/16οΌ
33.338οΌ1 %/16οΌ
12.70( .500)15.88( .625)19.05( .750)22.22( .875)25.40(1.000)31.75(1.250)38.10(1.500)12.70( .500)19.05( .750)25.40(1.000)
3.43.43.43.43.43.43.4βββ
25.400 25.387 33.352 33.327
10 20015 30019 30023 00026 40033 20039 40020 90030 70039 900
13 10022 10029 70037 20044 50059 60074 40034 10056 10078 400
15 00015 00015 00015 00015 00015 00015 0006 0006 0006 000
IRB 128
βIRB 1212
IRB 1214
IRB 1216
IRB 1220
βIRB 128
IRB 1212
IRB 1216
23.812οΌ !%/16οΌ
23.812οΌ !%/16οΌ
23.812οΌ !%/16οΌ
30.162οΌ1 #/16οΌ
30.162οΌ1 #/16οΌ
30.162οΌ1 #/16οΌ
12.70( .500)15.88( .625)25.40(1.000)
2.82.82.8
23.812 23.799 30.176 30.1518 000
11 00018 900
11 40017 10034 300
16 00016 00016 000
βIRB 1110
IRB 1116
Basic dynamicload rating
C
N
Basic staticload rating
C0
N
Allowablerotationalspeed(1)
rpm
Boundary dimensions mm(inch)
Fw D Ct1
Max.
Assembledinner ring
26.988οΌ1 !/16οΌ
26.988οΌ1 !/16οΌ
33.338οΌ1 %/16οΌ
33.338οΌ1 %/16οΌ
15.88( .625)25.40(1.000)
2.82.8
26.988 26.975 33.352 33.327 11 60020 000
19 20038 300
14 00014 000
ββ
Standard mounting dimensions mm
Max. Min. Max. Min.
Shaft dia.h6
Housing bore dia.J7
BAβ¦Z BHAβ¦Z BAM BHAM YB YBH
B381N=0.102kgf=0.2248lbs.1mm=0.03937inch
SHELL TYPE NEEDLE ROLLER BEARINGS
13.115.417.72226.53135.544βββ
1618.320.52529.533.53846.5βββ
βββββββββββ
βββββββββββ
ββββββββ
2334.546.5
ββββββββββ
ββββββββββ
242833.539.54556.567.5βββ
27313742.54859.571βββ
βββββββ
2944.559.5
16.520.533
192335.5
βββ
βββ
βββ
Shaft dia.
mm(inch)
Note(1) Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remark Shell Type Grease Retained Full Complement Needle Roller Bearings are provided with prepacked grease. Standard type and closed
end type bearings are not provided with prepacked grease, so perform proper lubrication when using these types of bearings.
Standard Closed end Standard Closed end Grease retainedMass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Identification number
Inch Series
BA 158 ZBA 1510 ZBA 1516 Z
BAM 158BAM 1510BAM 1516
βββ
βββ
βββ
23.812οΌ!%/16οΌ
BA 166 ZBA 167 Z BA 168 ZBA 1610 ZBA 1612 ZBA 1614 ZBA 1616 ZBA 1620 Zβββ
BAM 166BAM 167BAM 168BAM 1610BAM 1612BAM 1614BAM 1616BAM 1620βββ
βββββββββββ
βββββββββββ
ββββββββ
YB 168YB 1612YB 161625.400
οΌ1οΌββββββββββ
ββββββββββ
BHA 168 ZBHA 1610 ZBHA 1612 ZBHA 1614 ZBHA 1616 ZBHA 1620 ZBHA 1624 Z
βββ
BHAM 168BHAM 1610BHAM 1612BHAM 1614BHAM 1616BHAM 1620BHAM 1624
βββ
βββββββ
YBH 168YBH 1612YBH 1616
BA 1710 ZBA 1716 Z
BAM 1710BAM 1716
ββ
ββ
ββ
23.537
26.988οΌ1 !/16οΌ
26.540.5
ββ
ββ
ββ
Shaft dia. 23.812οΌ26.988mm
B37
οΏ½
30.162οΌ1 #/16οΌ
30.162οΌ1 #/16οΌ
30.162οΌ1 #/16οΌ
38.100οΌ1 !/ 2οΌ
38.100οΌ1 !/ 2οΌ
38.100οΌ1 !/ 2οΌ
15.88( .625)25.40(1.000)15.88( .625)
2.82.8β
30.162 30.146 38.114 38.08915 00025 80028 400
22 50045 30053 600
12 00012 0005 000
βββ
Basic dynamicload rating
C
N
Basic staticload rating
C0
N
Allowablerotationalspeed(1)
rpm
Boundary dimensions mm(inch)
Fw D Ct1
Max.
Assembledinner ring
28.575οΌ1 !/ 8οΌ
28.575οΌ1 !/ 8οΌ
28.575οΌ1 !/ 8οΌ
28.575οΌ1 !/ 8οΌ
28.575οΌ1 !/ 8οΌ
28.575οΌ1 !/ 8οΌ
28.575οΌ1 !/ 8οΌ
28.575οΌ1 !/ 8οΌ
34.925οΌ1 #/ 8οΌ
34.925οΌ1 #/ 8οΌ
34.925οΌ1 #/ 8οΌ
34.925οΌ1 #/ 8οΌ
34.925οΌ1 #/ 8οΌ
34.925οΌ1 #/ 8οΌ
34.925οΌ1 #/ 8οΌ
34.925οΌ1 #/ 8οΌ
9.52(. 375)12.70( .500)19.05( .750)25.40(1.000)31.75(1.250)12.70( .500)19.05( .750)25.40(1.000)
2.82.82.82.82.8βββ
28.575 28.562 34.939 34.914
6 3308 680
15 00020 50025 70020 70030 00038 700
8 91013 40026 90040 30053 90040 50065 30090 400
13 00013 00013 00013 00013 0005 5005 5005 500
βIRB 148
IRB 1412
IRB 1416
IRB 1420
IRB 148
IRB 1412
IRB 1416
28.575οΌ1 !/ 8οΌ
28.575οΌ1 !/ 8οΌ
28.575οΌ1 !/ 8οΌ
28.575οΌ1 !/ 8οΌ
38.100οΌ1 !/ 2οΌ
38.100οΌ1 !/ 2οΌ
38.100οΌ1 !/ 2οΌ
38.100οΌ1 !/ 2οΌ
19.05( .750)25.40(1.000)28.58(1.125)31.75(1.250)
3.43.43.43.4
28.575 28.562 38.114 38.089
22 50030 90034 90037 100
32 20048 60056 60061 100
13 00013 00013 00013 000
IRB 1412
IRB 1416
βIRB 1420
Standard mounting dimensions mm
Max. Min. Max. Min.
Shaft dia.h6
Housing bore dia.J7
BAβ¦Z BHAβ¦Z BAM BHAM YB
B401N=0.102kgf=0.2248lbs.1mm=0.03937inch
SHELL TYPE NEEDLE ROLLER BEARINGS
32.552
37.557β
βββ
βββ
ββ
42.5
Shaft dia.
mm(inch)
Note(1) Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remark Shell Type Grease Retained Full Complement Needle Roller Bearings are provided with prepacked grease. Standard type and closed
end type bearings are not provided with prepacked grease, so perform proper lubrication when using these types of bearings.
Standard Closed end Standard Closed end Grease retainedMass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Identification number
Inch Series
BA 186 ZBA 188 ZBA 1812 ZBA 1816 ZBA 1820 Zβββ
BAM 186BAM 188BAM 1812BAM 1816BAM 1820βββ
ββββββββ
ββββββββ
βββββ
YB 188YB 1812YB 1816
14.519.529.53948.5βββ
28.575οΌ1 !/8οΌ
18.1233342.552βββ
ββββββββ
ββββββββ
βββββ
25.538.551.5
ββββ
ββββ
BHA 1812 ZBHA 1816 ZBHA 1818 ZBHA 1820 Z
BHAM 1812BHAM 1816BHAM 1818BHAM 1820
ββββ
ββββ
ββββ
456067.573.5
496471.578
ββββ
BA 1910 ZBA 1916 Zβ
BAM 1910BAM 1916β
βββ
βββ
ββ
YB 1910
30.162οΌ1 #/16οΌ
Shaft dia. 28.575οΌ30.162mm
B39
οΏ½
33.338οΌ1 %/16οΌ
33.338οΌ1 %/16οΌ
33.338οΌ1 %/16οΌ
41.275οΌ1 %/ 8οΌ
41.275οΌ1 %/ 8οΌ
41.275οΌ1 %/ 8οΌ
12.70( .500)15.88( .625)19.05( .750)
2.82.82.8
33.338 33.322 41.289 41.26411 10015 40019 300
15 80023 90032 100
11 00011 00011 000
IRB 168-1
IRB 1610-1
IRB 1612-1
Basic dynamicload rating
C
N
Basic staticload rating
C0
N
Allowablerotationalspeed(1)
rpm
Boundary dimensions mm(inch)
Fw D Ct1
Max.
Assembledinner ring
31.750οΌ1 !/ 4οΌ
31.750οΌ1 !/ 4οΌ
31.750οΌ1 !/ 4οΌ
31.750οΌ1 !/ 4οΌ
31.750οΌ1 !/ 4οΌ
38.100οΌ1 !/ 2οΌ
38.100οΌ1 !/ 2οΌ
38.100οΌ1 !/ 2οΌ
38.100οΌ1 !/ 2οΌ
38.100οΌ1 !/ 2οΌ
12.70( .500)15.88( .625)19.05( .750)25.40(1.000)31.75(1.250)
2.82.82.82.82.8
31.750 31.734 38.114 38.089
9 10012 50015 70021 50026 900
14 70022 20029 60044 30059 200
12 00012 00012 00012 00012 000
IRB 168
IRB 1610
IRB 1612
IRB 1616
IRB 1620
31.750οΌ1 !/ 4οΌ
31.750οΌ1 !/ 4οΌ
31.750οΌ1 !/ 4οΌ
31.750οΌ1 !/ 4οΌ
31.750οΌ1 !/ 4οΌ
38.100οΌ1 !/ 2οΌ
38.100οΌ1 !/ 2οΌ
38.100οΌ1 !/ 2οΌ
38.100οΌ1 !/ 2οΌ
38.100οΌ1 !/ 2οΌ
15.88( .625)19.05( .750)25.40(1.000)28.58(1.125)31.75(1.250)
βββββ
31.750 31.734 38.114 38.089
27 00031 80040 90045 30049 400
59 00072 500
100 000114 000128 000
4 5004 5004 5004 5004 500
IRB 1610
IRB 1612
IRB 1616
βIRB 1620
31.750οΌ1 !/ 4οΌ
31.750οΌ1 !/ 4οΌ
31.750οΌ1 !/ 4οΌ
31.750οΌ1 !/ 4οΌ
41.275οΌ1 %/ 8οΌ
41.275οΌ1 %/ 8οΌ
41.275οΌ1 %/ 8οΌ
41.275οΌ1 %/ 8οΌ
12.70( .500)19.05( .750)25.40(1.000)31.75(1.250)
3.43.43.43.4
31.750 31.734 41.289 41.264
13 70024 10033 20040 000
17 60036 40055 00069 600
12 00012 00012 00012 000
IRB 168
IRB 1612
IRB 1616
IRB 1620
Standard mounting dimensions mm
Max. Min. Max. Min.
Shaft dia.h6
Housing bore dia.J7
BAβ¦Z BHAβ¦Z BAM BHAM YB
B421N=0.102kgf=0.2248lbs.1mm=0.03937inch
SHELL TYPE NEEDLE ROLLER BEARINGS
28.535.543
3541.549
βββ
βββ
βββ
Shaft dia.
mm(inch)
Note(1) Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remark Shell Type Grease Retained Full Complement Needle Roller Bearings are provided with prepacked grease. Standard type and closed
end type bearings are not provided with prepacked grease, so perform proper lubrication when using these types of bearings.
Standard Closed end Standard Closed end Grease retainedMass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Identification number
Inch Series
BA 208 ZBA 2010 ZBA 2012 ZBA 2016 ZBA 2020 Z
BAM 208BAM 2010BAM 2012BAM 2016BAM 2020
βββββ
βββββ
βββββ
21.52732.54353.5
31.750οΌ1 !/4οΌ
2631.53747.558
βββββ
βββββ
βββββ
βββββ
βββββ
βββββ
βββββ
YB 2010YB 2012YB 2016YB 2018YB 2020
βββββ
βββββ
βββββ
βββββ
3542.5576468
ββββ
ββββ
BHA 208 ZBHA 2012 ZBHA 2016 ZBHA 2020 Z
BHAM 208BHAM 2012BHAM 2016BHAM 2020
ββββ
ββββ
ββββ
34.549.56681.5
4054.57186.5
ββββ
BA 218 ZBA 2110 ZBA 2112 Z
BAM 218BAM 2110BAM 2112
βββ
βββ
βββ
33.338οΌ1 %/16οΌ
Shaft dia. 31.750οΌ33.338mm
B41
οΏ½
38.100οΌ1 !/ 2οΌ
38.100οΌ1 !/ 2οΌ
38.100οΌ1 !/ 2οΌ
38.100οΌ1 !/ 2οΌ
38.100οΌ1 !/ 2οΌ
38.100οΌ1 !/ 2οΌ
47.625οΌ1 &/ 8οΌ
47.625οΌ1 &/ 8οΌ
47.625οΌ1 &/ 8οΌ
47.625οΌ1 &/ 8οΌ
47.625οΌ1 &/ 8οΌ
47.625οΌ1 &/ 8οΌ
12.70( .500)15.88( .625)19.05( .750)22.22( .875)25.40(1.000)31.75(1.250)
2.82.82.82.82.82.8
38.100 38.084 47.639 47.614
12 90017 80022 50026 70031 10039 000
17 90027 10036 60045 60055 40074 200
9 0009 0009 0009 0009 0009 000
βIRB 2010
βIRB 2014
IRB 2016
IRB 2020
38.100οΌ1 !/ 2οΌ
38.100οΌ1 !/ 2οΌ
38.100οΌ1 !/ 2οΌ
38.100οΌ1 !/ 2οΌ
38.100οΌ1 !/ 2οΌ
47.625οΌ1 &/ 8οΌ
47.625οΌ1 &/ 8οΌ
47.625οΌ1 &/ 8οΌ
47.625οΌ1 &/ 8οΌ
47.625οΌ1 &/ 8οΌ
9.52( .375)12.70( .500)22.22( .875)25.40(1.000)31.75(1.250)
βββββ
38.100 38.084 47.639 47.614
21 00028 70048 90055 10066 800
34 10050 900
101 000118 000151 000
4 0004 0004 0004 0004 000
ββ
IRB 2014
IRB 2016
IRB 2020
Basic dynamicload rating
C
N
Basic staticload rating
C0
N
Allowablerotationalspeed(1)
rpm
Boundary dimensions mm(inch)
Fw D Ct1
Max.
Assembledinner ring
34.925οΌ1 #/ 8οΌ
34.925οΌ1 #/ 8οΌ
34.925οΌ1 #/ 8οΌ
34.925οΌ1 #/ 8οΌ
34.925οΌ1 #/ 8οΌ
34.925οΌ1 #/ 8οΌ
34.925οΌ1 #/ 8οΌ
41.275οΌ1 %/ 8οΌ
41.275οΌ1 %/ 8οΌ
41.275οΌ1 %/ 8οΌ
41.275οΌ1 %/ 8οΌ
41.275οΌ1 %/ 8οΌ
41.275οΌ1 %/ 8οΌ
41.275οΌ1 %/ 8οΌ
12.70( .500)19.05( .750)25.40(1.000)31.75(1.250)12.70( .500)19.05( .750)31.75(1.250)
2.82.82.82.8βββ
34.925 34.909 41.289 41.264
9 77016 90023 10028 90023 00033 40052 000
16 60033 50050 20067 10049 50079 800
141 000
10 00010 00010 00010 0004 5004 5004 500
IRB 188
IRB 1812
IRB 1816
IRB 1820
IRB 188
IRB 1812
IRB 1820
34.925οΌ1 #/ 8οΌ
34.925οΌ1 #/ 8οΌ
34.925οΌ1 #/ 8οΌ
34.925οΌ1 #/ 8οΌ
34.925οΌ1 #/ 8οΌ
44.450οΌ1 #/ 4οΌ
44.450οΌ1 #/ 4οΌ
44.450οΌ1 #/ 4οΌ
44.450οΌ1 #/ 4οΌ
44.450οΌ1 #/ 4οΌ
12.70( .500)15.88( .625)19.05( .750)25.40(1.000)31.75(1.250)
3.43.43.43.43.4
34.925 34.909 44.464 44.439
14 10019 70024 80034 10041 200
18 80028 80038 80058 40074 200
10 00010 00010 00010 00010 000
IRB 188
βIRB 1812
IRB 1816
IRB 1820
Standard mounting dimensions mm
Max. Min. Max. Min.
Shaft dia.h6
Housing bore dia.J7
BAβ¦Z BHAβ¦Z BAM BHAM YB
B441N=0.102kgf=0.2248lbs.1mm=0.03937inch
SHELL TYPE NEEDLE ROLLER BEARINGS
38.548.558.5697997.5
47.557.567.57888
106
ββββββ
ββββββ
ββββββ
βββββ
βββββ
βββββ
βββββ
3851.591
105131
Shaft dia.
mm(inch)
Note(1) Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remark Shell Type Grease Retained Full Complement Needle Roller Bearings are provided with prepacked grease. Standard type and closed
end type bearings are not provided with prepacked grease, so perform proper lubrication when using these types of bearings.
Standard Closed end Standard Closed end Grease retainedMass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Identification number
Inch Series
BA 228 ZBA 2212 ZBA 2216 ZBA 2220 Zβββ
BAM 228BAM 2212BAM 2216BAM 2220βββ
βββββββ
βββββββ
ββββ
YB 228YB 2212YB 2220
23.535.547.559βββ
34.925οΌ1 #/8οΌ
29415364βββ
βββββββ
βββββββ
ββββ30.54677.5
βββββ
βββββ
BHA 228 ZBHA 2210 ZBHA 2212 ZBHA 2216 ZBHA 2220 Z
BHAM 228BHAM 2210BHAM 2212BHAM 2216BHAM 2220
βββββ
βββββ
βββββ
3744537187
4350597798.5
βββββ
BA 248 ZBA 2410 ZBA 2412 ZBA 2414 ZBA 2416 ZBA 2420 Z
BAM 248BAM 2410BAM 2412BAM 2414BAM 2416BAM 2420
ββββββ
ββββββ
ββββββ38.100
οΌ1 !/2οΌβββββ
βββββ
βββββ
βββββ
YB 246YB 248YB 2414YB 2416YB 2420
Shaft dia. 34.925οΌ38.100mm
B43
οΏ½
44.450οΌ1 #/ 4οΌ
44.450οΌ1 #/ 4οΌ
44.450οΌ1 #/ 4οΌ
44.450οΌ1 #/ 4οΌ
44.450οΌ1 #/ 4οΌ
53.975οΌ2 !/ 8οΌ
53.975οΌ2 !/ 8οΌ
53.975οΌ2 !/ 8οΌ
53.975οΌ2 !/ 8οΌ
53.975οΌ2 !/ 8οΌ
19.05( .750)25.40(1.000)31.75(1.250)38.10(1.500)25.40(1.000)
2.82.82.82.8β
44.450 44.434 53.993 53.963
25 20034 80043 60052 00059 500
44 50067 40090 200
113 000136 000
7 5007 5007 5007 5003 500
IRB 2412
IRB 2416
βIRB 2424
IRB 2416
44.450οΌ1 #/ 4οΌ 57.150οΌ2 !/ 4οΌ38.10(1.500) 3.4 44.450 44.434 57.168 57.138 72 200 135 000 7 500 IRB 2424
50.800οΌ2 οΌ
50.800οΌ2 οΌ
50.800οΌ2 οΌ
50.800οΌ2 οΌ
50.800οΌ2 οΌ
50.800οΌ2 οΌ
60.325οΌ2 #/ 8οΌ
60.325οΌ2 #/ 8οΌ
60.325οΌ2 #/ 8οΌ
60.325οΌ2 #/ 8οΌ
60.325οΌ2 #/ 8οΌ
60.325οΌ2 #/ 8οΌ
12.70( .500)25.40(1.000)31.75(1.250)38.10(1.500)44.45(1.750)25.40(1.000)
2.82.82.82.82.8β
50.800 50.781 60.343 60.313
15 40037 10046 60055 50057 90064 100
24 70076 500
102 000128 000136 000156 000
6 0006 0006 0006 0006 0002 500
βIRB 2616
IRB 2720
βIRB 2628
IRB 2616
Basic dynamicload rating
C
N
Basic staticload rating
C0
N
Allowablerotationalspeed(1)
rpm
BAβ¦Z BHAβ¦Z
Boundary dimensions mm(inch)
Fw D Ct1
Max.
BAM BHAM YB
Assembledinner ring
41.275οΌ1 %/ 8οΌ
41.275οΌ1 %/ 8οΌ
41.275οΌ1 %/ 8οΌ
41.275οΌ1 %/ 8οΌ
41.275οΌ1 %/ 8οΌ
50.800οΌ2 οΌ
50.800οΌ2 οΌ
50.800οΌ2 οΌ
50.800οΌ2 οΌ
50.800οΌ2 οΌ
12.70( .500)15.88( .625)25.40(1.000)31.75(1.250)15.88( .625)
2.82.82.82.8β
41.275 41.259 50.818 50.788
13 70018 90033 00041 40037 000
19 80030 00061 40082 10071 700
8 0008 0008 0008 0003 500
βIRB 2210
βIRB 2220
IRB 2210
47.625οΌ1 &/ 8οΌ
47.625οΌ1 &/ 8οΌ
47.625οΌ1 &/ 8οΌ
47.625οΌ1 &/ 8οΌ
47.625οΌ1 &/ 8οΌ
57.150οΌ2 !/ 4οΌ
57.150οΌ2 !/ 4οΌ
57.150οΌ2 !/ 4οΌ
57.150οΌ2 !/ 4οΌ
57.150οΌ2 !/ 4οΌ
12.70( .500)15.88( .625)19.05( .750)25.40(1.000)19.05( .750)
2.82.82.82.8β
47.625 47.609 57.168 57.138
14 70020 30025 70035 40047 800
22 80034 50046 70070 600
105 000
7 0007 0007 0007 0003 000
IRB 248-1
IRB 2410-1
βββ
52.388οΌ2 !/16οΌ
52.388οΌ2 !/16οΌ
52.388οΌ2 !/16οΌ
64.294οΌ2 !&/32οΌ
64.294οΌ2 !&/32οΌ
64.294οΌ2 !&/32οΌ
19.05( .750)25.40(1.000)38.10(1.500)
3.43.43.4
52.388 52.369 64.312 64.28236 40050 60073 900
62 10094 700
154 000
6 0006 0006 000
βββ
Standard mounting dimensions mm
Max. Min. Max. Min.
Shaft dia.h6
Housing bore dia.J7
B461N=0.102kgf=0.2248lbs.1mm=0.03937inch
SHELL TYPE NEEDLE ROLLER BEARINGS
67.591
112136β
79.5103125148β
βββββ
βββββ
ββββ
119
β β 195 210 β
50104128155180β
66119144170196β
ββββββ
ββββββ
βββββ
130
Shaft dia.
mm(inch)
Note(1) Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remarks1. "W" in the identification number indicates that rolling elements are arranged in double rows.
2. Shell Type Grease Retained Full Complement Needle Roller Bearings are provided with prepacked grease. Standard type andclosed end type bearings are not provided with prepacked grease, so perform proper lubrication when using these types ofbearings.
Standard Closed end Standard Closed end Grease retainedMass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Identification number
Inch Series
BA 268 ZBA 2610 ZBA 2616 ZBA 2620 Z
β
BAM 268BAM 2610BAM 2616BAM 2620
β
βββββ
βββββ
ββββ
YB 2610
415285
105β
41.275οΌ1 %/8οΌ
51.562.595.5
115β
βββββ
βββββ
ββββ69
BA 2812 ZBA 2816 ZBA 2820 ZBA 2824 Z
β
BAM 2812BAM 2816BAM 2820BAM 2824
β
βββββ
βββββ
ββββ
YB 2816
44.450οΌ1 #/4οΌ
BA 308 ZBA 3010 ZBA 3012 ZBA 3016 Z
β
BAM 308BAM 3010BAM 3012BAM 3016
β
βββββ
βββββ
ββββ
YB 3012
47.56072.597.5β
47.625οΌ1 &/8οΌ
617486.5
112β
βββββ
βββββ
ββββ95
β β BHA 2824 Z BHAM 2824 β
BA 328 ZBA 3216 ZBA 3220 ZBA 3224 ZBAW3228Z
β
BAM 328BAM 3216BAM 3220BAM 3224BAMW3228
β
ββββββ
ββββββ
βββββ
YB 3216
50.800οΌ2οΌ
βββ
βββ
BHA 3312 ZBHA 3316 ZBHA 3324 Z
BHAM 3312BHAM 3316BHAM 3324
βββ
βββ
52.388οΌ2 !/16οΌ
βββ
104139205
122157225
βββ
Shaft dia. 41.275οΌ52.388mm
B45
οΏ½
57.150οΌ2 !/ 4οΌ
57.150οΌ2 !/ 4οΌ
57.150οΌ2 !/ 4οΌ
57.150οΌ2 !/ 4οΌ
66.675οΌ2 %/ 8οΌ
66.675οΌ2 %/ 8οΌ
66.675οΌ2 %/ 8οΌ
66.675οΌ2 %/ 8οΌ
19.05( .750)25.40(1.000)31.75(1.250)38.10(1.500)
2.82.82.82.8
57.150 57.131 66.693 66.663
28 50039 30049 40058 800
56 70085 700
115 000144 000
5 0005 0005 0005 000
ββββ
69.850οΌ2 #/ 4οΌ
69.850οΌ2 #/ 4οΌ
69.850οΌ2 #/ 4οΌ
69.850οΌ2 #/ 4οΌ
79.375οΌ3 !/ 8οΌ
79.375οΌ3 !/ 8οΌ
79.375οΌ3 !/ 8οΌ
79.375οΌ3 !/ 8οΌ
15.88( .625)19.05( .750)25.40(1.000)31.75(1.250)
2.82.82.82.8
69.850 69.831 79.393 79.363
25 00031 50043 50054 600
50 80068 700
104 000139 000
3 5003 5003 5003 500
ββ
IRB 4016
IRB 4020
Basic dynamicload rating
C
N
Basic staticload rating
C0
N
Allowablerotationalspeed(1)
rpm
BAβ¦Z
Boundary dimensions mm(inch)
Fw D Ct1
Max.
BAM
Assembledinner ring
53.975οΌ2 !/ 8οΌ
53.975οΌ2 !/ 8οΌ
53.975οΌ2 !/ 8οΌ
63.500οΌ2 !/ 2οΌ
63.500οΌ2 !/ 2οΌ
63.500οΌ2 !/ 2οΌ
12.70( .500)25.40(1.000)38.10(1.500)
2.82.82.8
53.975 53.956 63.518 63.48816 10038 70057 900
26 60082 500
138 000
5 5005 5005 500
βIRB 3016
IRB 3024
66.675οΌ2 %/ 8οΌ 76.200οΌ3 οΌ 25.40(1.000) 2.8 66.675 66.656 76.218 76.188 42 000 97 900 4 000 IRB 3616
Standard mounting dimensions mm
Max. Min. Max. Min.
Shaft dia.h6
Housing bore dia.J7
B481N=0.102kgf=0.2248lbs.1mm=0.03937inch
SHELL TYPE NEEDLE ROLLER BEARINGS
85.5115143172
105135163192
ββββ
ββββ
ββββ
85.5103139173
115133169205
ββββ
ββββ
ββββ
Shaft dia.
mm(inch)
Note(1) Allowable rotational speed applies to oil lubrication. For grease lubrication, a maximum of 60% of this value is allowable.Remark Shell Type Grease Retained Full Complement Needle Roller Bearings are provided with prepacked grease. Standard type and closed
end type bearings are not provided with prepacked grease, so perform proper lubrication when using these types of bearings.
Standard Closed end Standard Closed end Grease retainedMass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Mass(Ref. )
g
Identification number
Inch Series
BA 348 ZBA 3416 ZBA 3424 Z
BAM 348BAM 3416BAM 3424
βββ
βββ
βββ
53109162
70.5127180
βββ
βββ
βββ
BA 3612 ZBA 3616 ZBA 3620 ZBA 3624 Z
BAM 3612BAM 3616BAM 3620BAM 3624
ββββ
ββββ
ββββ
BA 4216 Z BAM 4216 β β β13366.675οΌ2 %/8οΌ 161 β β β
BA 4410 ZBA 4412 ZBA 4416 ZBA 4420 Z
BAM 4410BAM 4412BAM 4416BAM 4420
ββββ
ββββ
ββββ
53.975οΌ2 !/8οΌ
57.150οΌ2 !/4οΌ
69.850οΌ2 #/4οΌ
Shaft dia. 53.975οΌ69.850mm
B47
οΏ½
6 420
7 080
7 380
7 670
8 230
8 74011 100
9 23011 700
9 44012 800
13 800
10 40014 100
11 60015 700
12 40016 700
17 800
28 800
7 490
8 840
9 520
10 200
11 500
12 90017 500
14 30019 300
13 90020 500
23 500
16 60024 500
20 00029 600
22 80033 700
37 800
64 100
14 000
12 000
11 000
11 000
9 000
9 0009 000
8 0008 000
7 0007 000
6 000
5 5005 500
5 0005 000
4 5004 500
4 000
3 500
Basic dynamic load rating
C
N
Basic static load rating
C0
N
Allowablerotationalspeed(1)
rpm
TLAβ¦UU
B501N=0.102kgf=0.2248lbs.1mm=0.03937inch
SHELL TYPE NEEDLE ROLLER BEARINGS
Note(1) Allowable rotational speed applies to grease lubrication.Remark The type with seals is provided with prepacked grease.
Shaft dia.
mm
Identification number
12
14
15
16
18
20
22
25
28
30
35
40
45
50
TLA 1216 UU
TLA 1416 UU
TLA 1516 UU
TLA 1616 UU
TLA 1816 UU
TLA 2016 UUTLA 2020 UU
TLA 2216 UUTLA 2220 UU
TLA 2516 UUTLA 2520 UU
TLA 2820 UU
TLA 3016 UUTLA 3020 UU
TLA 3516 UUTLA 3520 UU
TLA 4016 UUTLA 4020 UU
TLA 4520 UU
TLA 5026 UU
11.7
13.3
14
14.8
16.3
17.822.5
19.425
2633
36.5
30.539
3545
39.550.5
56
89
Standard mounting dimensions mm
Max. Min. Max. Min. N7
Housing bore dia.
12
14
15
18
16
2020
2222
2525
28
3030
3535
45
50
4040
18
20
21
24
22
2626
2828
3232
35
3737
4242
52
58
4747
16
16
16
16
16
1620
1620
1620
20
1620
1620
20
26
1620
12.000
14.000
15.000
18.000
16.000
20.000
22.000
25.000
28.000
30.000
35.000
45.000
50.000
40.000
11.989
13.989
14.989
17.989
15.989
19.987
21.987
24.987
27.987
29.987
34.984
44.984
49.984
39.984
17.995
19.993
20.993
23.993
21.993
25.993
27.993
31.992
34.992
36.992
41.992
51.991
57.991
46.992
17.977
19.972
20.972
23.972
21.972
25.972
27.972
31.967
34.967
36.967
41.967
51.961
57.961
46.967
Boundary dimensions mm
D CFw
Mass (Ref. )
gh6
Shaft dia.
Shaft dia. 12οΌ50mm
With seals
B49