| Bearing model | Boundary Dimensions（mm） | ||
|---|---|---|---|
| d | D | B | |
| W 60/2.5 | 2.5 | 8 | 2.8 |
| WBB1-8702 | 2.5 | 8 | 2.5 |
| W 638/2.5 R-2Z | 2.5 | 6 | 2.6 |
| W 618/2.5 R | 2.5 | 6 | 1.8 |
| D/W RW1-5-2Z | 2.38 | 7.938 | 4.366 |
| D/W R133 | 2.38 | 4.762 | 1.588 |
| D/W R1-5 R-2Z | 2.38 | 7.938 | 3.571 |
| D/W R1-5 | 2.38 | 7.938 | 2.779 |
| D/W RW133 R-2ZS | 2.38 | 4.762 | 3.175 |
| D/W RW133 | 2.38 | 4.762 | 2.38 |
| D/W R1-5-2Z | 2.38 | 7.938 | 3.571 |
| D/W R133 R-2ZS | 2.38 | 4.762 | 2.38 |
| D/W RW133-2ZS | 2.38 | 4.762 | 3.175 |
| D/W R133 R | 2.38 | 4.762 | 1.588 |
| D/W R1-5 R | 2.38 | 7.938 | 2.779 |
| D/W RW133 R | 2.38 | 4.762 | 2.38 |
| D/W R133-2ZS | 2.38 | 4.762 | 2.38 |
| W 638/2 XR-2Z | 2 | 5 | 2.5 |
| W 638/2 X-2Z | 2 | 5 | 2.5 |
| W 602 R | 2 | 7 | 2.8 |
| W 618/2 XR | 2 | 5 | 2 |
| W 602 XR-2ZS | 2 | 7 | 3 |
| W 638/2-2Z | 2 | 5 | 2.3 |
| W 638/2 R-2Z | 2 | 5 | 2.3 |
| W 630/2 R-2ZS | 2 | 7 | 3.5 |
| W 639/2 R-2Z | 2 | 6 | 3 |
| W 637/2-2Z | 2 | 4 | 2 |
| W 619/2 X-2Z | 2 | 6 | 2.5 |
| W 617/2 | 2 | 4 | 1.2 |
| W 602 | 2 | 7 | 2.8 |
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