| Bearing model | Boundary Dimensions（mm） | ||
|---|---|---|---|
| d | D | B | |
| W 608-2RS1/VP311 | 8 | 22 | 7 |
| W 617/8 R | 8 | 12 | 2.5 |
| W 628/8-2RS1 | 8 | 16 | 5 |
| W 637/8 XR | 8 | 14 | 3.5 |
| 619/8 | 8 | 19 | 6 |
| W 618/8 | 8 | 16 | 4 |
| 638-2RZ | 8 | 28 | 9 |
| 608-RSL | 8 | 22 | 7 |
| 608-RSH | 8 | 22 | 7 |
| 607/8-2Z | 8 | 19 | 6 |
| W 628/8 R-2Z | 8 | 16 | 5 |
| W 638/8-2Z | 8 | 16 | 6 |
| W 618/8-2Z | 8 | 16 | 4 |
| W 628/8-2RZ | 8 | 16 | 5 |
| W 608-2RZ | 8 | 22 | 7 |
| W 628/8 R-2RS1 | 8 | 16 | 5 |
| 618/8 | 8 | 16 | 4 |
| W 608 R | 8 | 22 | 7 |
| W 619/8 | 8 | 19 | 6 |
| D/W RW1810 R | 7.938 | 12.7 | 4.762 |
| D/W R1810-2ZS | 7.938 | 12.7 | 3.967 |
| D/W RW1810-2ZS | 7.938 | 12.7 | 4.762 |
| D/W RW1810 | 7.938 | 12.7 | 4.762 |
| D/W R1810 | 7.938 | 12.7 | 3.967 |
| D/W R1810 R-2ZS | 7.938 | 12.7 | 3.967 |
| D/W RW1810 R-2ZS | 7.938 | 12.7 | 4.762 |
| D/W R1810 R | 7.938 | 12.7 | 3.967 |
| 627-Z | 7 | 22 | 7 |
| 607-Z | 7 | 19 | 6 |
| 627-RSH | 7 | 22 | 7 |
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