| Bearing model | Boundary Dimensions（mm） | ||
|---|---|---|---|
| d | D | B | |
| 6311 M | 55 | 120 | 29 |
| 6311 N | 55 | 120 | 29 |
| 6311-2ZNR | 55 | 120 | 29 |
| 311 NR | 55 | 120 | 29 |
| 6311-2RS1 | 55 | 120 | 29 |
| 62211-2RS1 | 55 | 100 | 25 |
| 6411 | 55 | 140 | 33 |
| 6211-RS1 | 55 | 100 | 21 |
| 6011-RS1 | 55 | 90 | 18 |
| 211-Z | 55 | 100 | 21 |
| 4311 ATN9 | 55 | 120 | 43 |
| W 61811-2Z | 55 | 72 | 9 |
| 6011 M | 55 | 90 | 18 |
| 6011 N | 55 | 90 | 18 |
| 61811-2RS1 | 55 | 72 | 9 |
| 6011 | 55 | 90 | 18 |
| 61811 | 55 | 72 | 9 |
| 6011-Z | 55 | 90 | 18 |
| 62311-2RS1 | 55 | 120 | 43 |
| W 61911 | 55 | 80 | 13 |
| RMS 16 | 50.8 | 114.3 | 26.988 |
| RLS 16 | 50.8 | 101.6 | 20.638 |
| W 61910-2RS1 | 50 | 72 | 12 |
| 6310-2Z | 50 | 110 | 27 |
| W 61910 R-2Z | 50 | 72 | 12 |
| 210-Z | 50 | 90 | 20 |
| 6010-RS1 | 50 | 80 | 16 |
| W 61810 R | 50 | 65 | 7 |
| 6210-2RZ | 50 | 90 | 20 |
| 6210 NR | 50 | 90 | 20 |
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