Boundary dimensions（mm）
Bearing numbers
Basic load rating
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Boundary dimensions（mm） |
Bearing numbers |
Basic load rating |
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| d | D | B | B1 | rs | Open Type | Shielded Type(ZZ) | Rubber Type(2RS) | Cr | Cor |
| 1.984 | 6.35 | 2.38 | 3.571 | 0.1 | R1-4 | R1-4ZZS | R1-4-2RS | 284 | 96 |
| 2.380 | 4.762 | 1.588 | - | 0.1 | R133 | - | - | 189 | 60 |
| 4.762 | - | 2.38 | 0.1 | - | R133ZZS | R133-2RS | 144 | 53 | |
| 7.938 | 2.779 | 3.571 | 0.15 | R1-5 | R1-5ZZS | R1-5-2RS | 582 | 176 | |
| 3.175 | 6.35 | 2.38 | 2.779 | 0.1 | R144 | R144ZZS | R144-2RS | 284 | 96 |
| 7.938 | 2.779 | 3.571 | 0.1 | R2-5 | R2-5ZZ | R2-5-2RS | 558 | 180 | |
| 9.525 | 2.779 | 3.571 | 0.15 | R2-6 | R2-6ZZ | R2-6-2RS | 640 | 227 | |
| 9.525 | 3.967 | 3.967 | 0.3 | R2 | R2ZZ | R2-2RS | 631 | 219 | |
| 12.7 | 4.366 | 4.366 | 0.3 | R2A | R2AZZ | R2A-2RS | 640 | 227 | |
| 3.967 | 7.938 | 2.779 | 3.175 | 0.1 | R155 | R155ZZS | R155-2RS | 359 | 150 |
| 4.762 | 7.938 | 2.779 | 3.175 | 0.1 | R156 | R156ZZS | R156-2RS | 359 | 150 |
| 9.525 | 3.175 | 3.175 | 0.1 | R166 | R166ZZ | R166-2RS | 709 | 272 | |
| 12.7 | 3.967 | 4.978 | 0.3 | R3 | R3ZZ | R3-2RS | 1301 | 488 | |
| 15.875 | 4.978 | 4.978 | 0.3 | R3A | R3AZZ | R3A-2RS | 1480 | 621 | |
| 6.35 | 9.525 | 3.175 | 3.175 | 0.1 | R168 | R168ZZS | R168-2RS | 373 | 172 |
| 12.7 | 3.175 | 4.762 | 0.15 | R188 | R188ZZ | R188-2RS | 1082 | 442 | |
| 15.875 | 4.978 | 4.978 | 0.3 | R4 | R4ZZ | R4-2RS | 1480 | 621 | |
| 19.05 | 5.558 | 7.142 | 0.4 | R4A | R4AZZ | R4A-2RS | 2336 | 896 | |
| 7.938 | 12.7 | 3.967 | 3.967 | 0.15 | R1810 | R1810ZZS | R1810-2RS | 542 | 276 |
| 9.525 | 15.875 | 3.967 | 3.967 | 0.25 | R1038 | R1038ZZ | R1038-2RS | 430 | 200 |
| 22.225 | 5.558 | 7.142 | 0.4 | R6 | R6ZZ | R6-2RS | 3332 | 1422 | |
| 12.7 | 19.05 | 3.967 | 3.967 | 0.25 | R1212 | R1212ZZ | R1212-2RS | 500 | 275 |
| 28.575 | 6.35 | 7.938 | 0.4 | R8 | R8ZZ | R1212-2RS | 5108 | 2413 | |
| 15.875 | 34.925 | 7.142 | 8.733 | 0.8 | R10 | R10ZZ | R10-2RS | 5988 | 3287 |