| Bearing model | Boundary Dimensions（mm） | ||
|---|---|---|---|
| d | D | B | |
| W 633-2RS1 | 3 | 13 | 5 |
| W 639/3-2Z | 3 | 8 | 4 |
| W 623-2Z | 3 | 10 | 4 |
| W 623 R-2RS1 | 3 | 10 | 4 |
| W 619/3-2Z | 3 | 8 | 3 |
| W 603 XR-2Z | 3 | 9 | 4 |
| W 618/3 | 3 | 7 | 2 |
| W 603 R | 3 | 9 | 3 |
| WBB1-8703 | 3 | 8 | 2.5 |
| WBB1-8704 | 3 | 9 | 2.5 |
| W 603 X-2Z | 3 | 9 | 4 |
| W 639/3 R-2RS1 | 3 | 8 | 4 |
| W 623-2RZ | 3 | 10 | 4 |
| W 638/3-2RS1 | 3 | 7 | 3 |
| 623-Z | 3 | 10 | 4 |
| W 619/3 R-2Z | 3 | 8 | 3 |
| W 627/3-2Z | 3 | 6 | 2.5 |
| W 638/3 R-2Z | 3 | 7 | 3 |
| W 619/3 | 3 | 8 | 3 |
| W 60/2.5 R | 2.5 | 8 | 2.8 |
| W 630/2.5-2Z | 2.5 | 8 | 4 |
| W 630/2.5 R-2Z | 2.5 | 8 | 4 |
| WBB1-8702 R | 2.5 | 8 | 2.5 |
| W 639/2.5 R-2ZS | 2.5 | 7 | 3.5 |
| W 619/2.5 R | 2.5 | 7 | 2.5 |
| W 60/2.5-2Z | 2.5 | 8 | 2.8 |
| W 638/2.5-2Z | 2.5 | 6 | 2.6 |
| W 619/2.5 | 2.5 | 7 | 2.5 |
| W 639/2.5-2ZS | 2.5 | 7 | 3.5 |
| W 618/2.5 | 2.5 | 6 | 1.8 |
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