KOYO tapered roller bearings
| Boundary dimensions
d D T B C r r1 mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. |
Bearing No. 1) |
(Refer.)
Mass (kg) |
|||||||||
| 257.175 | 10.1250
10.1250 |
342.900
358.775 |
13.5000
14.1250 |
57.150
71.438 |
2.2500
2.8125 |
57.150 2.2500 76.200 3.0000 | 44.450 1.7500 53.975 2.1250 | 6.4
1.6 |
3.2
3.2 |
M349549/M349510
M249747/M249710 |
13.3
21 |
| 258.763 | 10.1875 | 400.050 | 15.7500 | 69.850 | 2.7500 | 67.470 2.6563 | 46.038 1.8125 | 9.5 | 6.4 | EE221018/221575 | 26.7 |
| 260 | —
— |
360
400 |
63.5
87 |
63.5 —
87 — |
48 — 65 — | 3
5 |
2.5
4 |
32952JR
32052JR |
18.9
39.5 |
||
| 260.350 | 10.2500
10.2500 10.2500 |
365.125
419.100 422.275 |
14.3750
16.5000 16.6250 |
58.738
85.725 86.121 |
2.3125
3.3750 3.3906 |
58.738 2.3125 84.138 3.3125 79.771 3.1406 | 42.863 1.6875 61.913 2.4375 66.675 2.6250 | 6.4
6.4 6.7 |
6.4
3.2 3.2 |
EE134102/134143
EE435102/435165 HM252348/HM252310 |
17.1
42.3 41.2 |
| 263.525 | 10.3750 | 325.438 | 12.8125 | 28.575 | 1.1250 | 28.575 1.1250 | 25.400 1.0000 | 1.6 | 1.6 | 38880/38820 | 5.08 |
| 264.975 | 10.4321 | 355.600 | 14.0000 | 57.150 | 2.2500 | 62.000 2.4409 | 44.450 1.7500 | 3.6 | 3.2 | LM451347/LM451310 | 15.3 |
| 266.700 | 10.5000
10.5000 10.5000 10.5000 |
325.438
355.600 393.700 444.500 |
12.8125
14.0000 15.5000 17.5000 |
28.575
57.150 73.817 120.650 |
1.1250
2.2500 2.9062 4.7500 |
28.575 1.1250 57.150 2.2500 69.850 2.7500
117.475 4.6250 |
25.400 1.0000 44.450 1.7500 50.005 1.9687
88.900 3.5000 |
1.6
3.6 6.4 6.4 |
1.6
3.2 6.4 6.4 |
38885/38820
LM451349/LM451310 EE275105/275155 H852849/H852810 |
4.79
14.7 28.3 71.2 |
| 269.875 | 10.6250 | 381.000 | 15.0000 | 74.613 | 2.9375 | 74.613 2.9375 | 57.150 2.2500 | 6.4 | 3.2 | M252349/M252310 | 24.5 |
| 276.225 | 10.8750 | 352.425 | 13.8750 | 36.513 | 1.4375 | 34.925 1.3750 | 23.813 0.9375 | 3.6 | 3.2 | L853049/L853010 | 7.53 |
| 279.400 | 11.0000
11.0000 |
469.900
488.950 |
18.5000
19.2500 |
95.250
120.650 |
3.7500
4.7500 |
93.663 3.6875 120.650 4.7500 | 69.850 2.7500 92.075 3.6250 | 9.5
1.2 |
3.2
6.4 |
EE722110/722185
EE295110/295193 |
60.7
85.5 |
| 280 | —
— |
380
420 |
63.5
87 |
63.5 —
87 — |
48 — 65 — | 3
5 |
2.5
4 |
32956JR
32056JR |
20.1
41.7 |
||
| 285.750 | 11.2500 | 358.775 | 14.1250 | 33.338 | 1.3125 | 31.750 1.2500 | 22.225 0.8750 | 3.6 | 3.2 | 545112/545141 | 6.75 |
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