A professional exporter of all kinds of bearings include Ball bearings, Special bearings, Automobile bearings, Needle bearings, Spherical Plain bearings, Pillow block ball bearings, Roller bearings, Linear bearings, Thrust ball bearings, Double row self-aligning bearings, Angular contact ball bearings.
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Inner Ring


Shaft Diameter Designation Boundary Dimensions Mass Approx
d F B
mm mm g
5 IR5*8*12 5 8 12 2.79
IR5*8*16 5 8 16 3.75
6 IR6*9*12 6 9 12 3.17
IR6*9*16 6 9 16 4.3
?IR6*10*10 6 10 10 3.7
IR6*10*12 6 10 12 4.6
7 IR/LR7*10*10.5 7 10 10.5 3.09
IR7*10*12 7 10 12 3.61
IR7*10*16 7 10 16 4.9
7.8 IR06*12*10.5C 7.8 12.2 10.7
8 ?IR8*12*10 8 12 10 4.8
IR/LR8*12*10.5 8 12 10.5 5
IR8*12*12 8 12 12 5.7
IR/LR8*12*12.5 8 12 12.5 5.9
9 IR9*12*12 9 12 12 4.5
IR9*12*16 9 12 16 6.1
10 IR/LR10*13*12.5 10 13 12.5 5.2
?IR10*14*12 10 14 12 7.3
IR10*14*13 10 14 13 7.4
IR10*14*14 10 14 14 8
IR10*14*16 10 14 16 9.2
IR10*14*20 10 14 20 11.6
12 IR12*15*12 12 15 12 5.8
IR/LR12*15*12.5 12 15 12.5 6.1
IR12*15*16 12 15 16 8
IR/LR12*15*16.5 12 15 16.5 8.1
IR/LR12*15*22.5 12 15 22.5 10.9
?IR12*16*12 12 16 12 7.9
IR12*16*13 12 16 13 8.7
IR12*16*14 12 16 14 9.5
IR12*16*16 12 16 16 10.9
IR12*16*20 12 16 20 13.5
IR12*16*22 12 16 22 14.9
IR12*16*12 12 16 12
IR12*16*22.5 12 16 22.5
IR12*14*15.5 12 17 15.5
IR12*17*22.5 12 17 22.5
14 R14*17*17 14 17 17 10

Shaft Diameter Designation Boundary Dimensions Mass Approx
d F B
mm mm g
15 LR15*18*12.5 15 18 12.5 7.2
IR15*18*16 15 18 16 9.6
IR15*18*16.5 15 18 16.5 9.9
IR15*19*16 15 19 16 12.8
IR15*19*20 15 19 20 16.4
?IR15*20*12 15 20 12 12.1
IR15*20*13 15 20 13 13.5
IR15*20*14 15 20 14 14.7
IR15*20*23 15 20 23 24.4
17 IR17*20*16 17 20 16 10.7
IR/LR17*20*16.5 17 20 16.5 11.1
IR17*20*20 17 20 20 13.5
IR/LR17*20*20.5 17 20 20.5 13.8
IR/LR17*20*30.5 17 20 30.5 20.6
IR17*21*16 17 21 16 14.3
IR17*21*20 17 21 20 18
IR17*22*13 17 22 13 14.9
IR17*22*14 17 22 14 16.4
IR17*22*16 17 22 16 18.7
IR17*22*23 17 22 23 27.1
IR17*24*20 17 24 20 33.6
20 IR20*24*16 20 24 16 16.5
IR20*24*20 20 24 20 21.3
LR20*25*12.5 20 25 12.5 16.3
?IR20*25*16 20 25 16 21.1
LR20*25*16.5 20 25 16.5 21.7
IR20*25*17 20 25 17 22.4
IR20*25*18 20 25 18 24.3
IR20*25*20 20 25 20 27.5
IR/LR20*25*20.5 20 25 20.5 28.2
IR/LR20*25*26.5 20 25 26.5 36.1
IR20*25*30 20 25 30 40.9
IR/LR20*25*38.5 20 25 38.5 52.5
IR20*28*20 20 28 20 45.2
22 IR22*26*16 22 26 16 17.5
IR22*26*20 22 26 20 23.2
IR22*28*17 22 28 17 29.8
IR22*28*20 22 28 20 35
IR/LR22*28*20.5 22 28 20.5 36

Shaft Diameter Designation Boundary Dimensions Mass Apporx
d F B
mm mm g
22 IR22*28*30 22 28 30 26.7
25 IR25*29*20 25 29 20 25.5
IR25*29*30 25 29 30 39.3
LR25*30*12.5 25 30 12.5 20
IR25*30*16 25 30 16 26
LR25*30*16 25 30 16.5 26.7
IR25*30*17 25 30 17 27.5
IR25*30*18 25 30 18 29.8
IR25*30*20 25 30 20 32.6
IR/LR25*30*20.5 25 30 20.5 33.5
IR/LR25*30*26.5 25 30 26.5 43.3
IR25*30*30 25 30 30 50.1
IR25*30*32 25 30 32 53
IR/LR25*30*38.5 25 30 38.5 63.8
IR25*32*22 25 32 22 51.7
28 IR28*32*17 28 32 17 24.5
IR28*32*20 28 32 20 28.4
IR28*32*30 28 32 30 43.8
28.575 IRB1820 28.575 34.925 32 -
29 IR29*32*13 29 32 13 14.8
30 LR30*35*12.5 30 35 12.5 23.3
IR30*35*13 30 35 13 25
IR30*35*16 30 35 16 30.8
LR30*35*16.5 30 35 16.5 21.4
IR30*35*17 30 35 17 32.3
IR30*35*18 30 35 18 35.3
IR30*35*20 30 35 20 40
IR/LR30*35*20.5 30 35 20.5 40.7
IR30*35*26 30 35 26 50.3
IR30*35*30 30 35 30 58.9
IR30*37*18 30 37 18 50
IR30*37*22 30 37 22 60.8
IR30*38*20 30 38 20 64.8
32 IR32*37*20 32 37 20 42
IR32*37*30 32 37 30 62.7
IR32*40*20 32 40 20 68
IR32*40*36 32 40 36 124
33 IR33*37*13 33 37 13 21.9
34 IR34*42*20 34 42 20 -

Shaft Diameter Designation Boundary Dimensions Mass Apporx
d F B
mm mm g
35 LR35*40*12.5 35 40 12.5 27.2
LR35*40*16.5 35 40 16.5 37.4
IR35*40*17 35 40 17 38.3
IR35*40*20 35 40 20 44.4
IR/LR35*40*20.5 35 40 20.5 46.1
IR35*40*30 35 40 30 67.9
IR35*42*20 35 42 20 63.9
IR35*42*20.5 35 42 20.5 66
IR35*42*21 35 42 21 67.7
IR35*42*23 35 42 23 74
IR35*42*36 35 42 36 117
IR35*43*22 35 43 22 82
38 IR38*43*20 38 43 20 48.1
IR38*43*30 38 43 30 73.6
40 LR40*45*16.5 40 45 16.5 41.4
IR40*45*17 40 45 17 42.5
IR40*45*20 40 45 20 50.5
IR/LR40*45*20.5 40 45 20.5 52.5
IR40*45*30 40 45 30 77.1
IR40*48*22 40 48 22 92.3
IR40*48*23 40 48 23 97.3
IR40*48*40 40 48 40 170
IR40*50*20 40 50 20 106
IR40*50*22 40 50 22 118
IR40*45*22.5 40 45 22.5
42 IR42*47*20 42 47 20 53.5
IR42*47*30 45 47 30 81
45 LR45*50*20.5 45 50 20.5 58.8
IR45*50*25 45 50 25 71.1
IR/LR45*50*25.5 45 50 25.5 73.7
IR45*50*35 45 50 35 101
IR45*52*22 45 52 22 89
IR45*52*23 45 52 23 93
IR45*52*40 45 52 40 164
IR45*55*20 45 55 20 117
IR45*55*22 45 55 22 130
IR45*50*20 45 50 20 -
IR45*50*26 45 50 26 -
IR45*50*40 45 50 40 -

Shaft Diameter Designation Boundary Dimensions Mass Apporx
d F B
mm mm g
45.2 IR45.2*58*36 45.2 58 36 -
47 IR47*60*35 47 60 35 -
50 IR50*55*20 50 55 20 62.6
LR50*55*20.5 50 55 20.5 64.1
IR50*55*25 50 55 25 77.8
IR50*55*35 50 55 35 112
IR50*58*22 50 58 22 115
IR50*58*23 50 58 23 119
IR50*58*40 50 58 40 209
IR50*60*20 50 60 20 129
IR50*60*25 50 60 25 163
IR50*60*28 50 60 28 183
55 IR55*60*25 55 60 25 86
IR55*60*35 55 60 35 121
IR55*63*25 55 63 25 141
IR55*63*45 55 63 45 256
IR55*65*28 55 65 28 198
60 IR60*68*25 60 68 25 152
IR60*68*35 60 68 35 213
IR60*68*45 60 68 45 275
IR60*70*25 60 70 25 195
IR60*70*28 60 70 28 216
IR60*65*41 60 65 41
65 IR65*72*25 65 72 25 142
IR65*72*45 65 72 45 259
IR65*73*25 65 73 25 164
IR65*73*35 65 73 35 232
IR65*75*28 65 75 28 230
70 IR70*80*25 70 80 25 224
IR70*80*30 70 80 30 267
IR70*80*35 70 80 35 313
IR70*80*54 70 80 54 487
IR70*80*56 70 80 56 506
75 IR75*85*25 75 85 25 238
IR75*85*30 75 85 30 287
IR75*85*35 75 85 35 336
IR75*85*54 75 85 54 520
80 IR80*90*25 80 90 25 254
IR80*90*30 80 90 30 304

Shaft Diameter Designation Boundary Dimensions Mass Apporx
d F B
mm mm g
80 IR80*90*35 80 90 35 355
IR80*90*54 80 90 54 550
85 IR85*95*26 85 95 26 280
IR85*95*36 85 95 36 390
IR85*100*35 85 100 35 580
IR85*100*63 85 100 63 1050
88 IR88*100*30 88 100 30 -
90 IR90*100*26 90 100 26 294
IR90*100*30 90 100 30 340
IR90*100*36 90 100 36 406
IR90*105*35 90 105 35 610
IR90*105*63 90 105 63 1110
95 IR95*105*26 95 105 26 313
IR95*105*36 95 105 36 430
IR95*110*35 95 110 35 643
IRV95*110*63 95 110 63 1170
100 IR100*110*30 100 110 30 370
IR100*110*40 100 110 40 505
IR100*115*40 100 115 40 775
110 IR110*120*30 110 120 30 409
IR100*110*40 110 125 40 840
120 IR120*130*30 120 130 30 442
IR120*135*45 120 135 45 1000
130 IR130*145*35 130 145 35 855
IR130*150*50 130 150 50 1690
140 IR140*155*35 140 155 35 917
IR140*160*50 140 160 50 1800
150 IR150*165*40 150 165 40 1120
160 IR160*175*40 160 175 40 1200
 
 
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