| Bearing model | Boundary Dimensions（mm） | ||
|---|---|---|---|
| d | D | B | |
| W 63804-2Z | 20 | 32 | 10 |
| W 61804-2RZ | 20 | 32 | 7 |
| 6004-RSH | 20 | 42 | 12 |
| 6004-RSL | 20 | 42 | 12 |
| W 6204 | 20 | 47 | 14 |
| 6004 NR | 20 | 42 | 12 |
| W 6204-2RS1 | 20 | 47 | 14 |
| 6004-2ZNR | 20 | 42 | 12 |
| W 63804 | 20 | 32 | 10 |
| W 6204-2Z | 20 | 47 | 14 |
| 63004-2RS1 | 20 | 42 | 16 |
| 6304-2ZNR | 20 | 52 | 15 |
| 6204-2RSL | 20 | 47 | 14 |
| 6204-2RSH | 20 | 47 | 14 |
| 6204-RSH | 20 | 47 | 14 |
| 6204-RSL | 20 | 47 | 14 |
| W 61804-2RS1 | 20 | 32 | 7 |
| 61804-2RS1 | 20 | 32 | 7 |
| 6204-Z | 20 | 47 | 14 |
| 6204 ETN9 | 20 | 47 | 14 |
| 62204-2RS1 | 20 | 47 | 18 |
| 6204 | 20 | 47 | 14 |
| W 6304 | 20 | 52 | 15 |
| 6204 N | 20 | 47 | 14 |
| W 63804-2RZ | 20 | 32 | 10 |
| W 61704 R | 20 | 27 | 4 |
| W 61904 R | 20 | 37 | 9 |
| W 61704 | 20 | 27 | 4 |
| 6004-2Z | 20 | 42 | 12 |
| W 6204-2RZ | 20 | 47 | 14 |
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