| 型号 | 基本尺寸 mm |
|||
| 通用配组轴承 | 基本设计轴承 | d | D | B |
| 7210BECBY | 7210BEY | 50 | 90 | 20 | 7210BECBM | - | 50 | 90 | 20 |
| 7310BECBP | - | 50 | 110 | 27 | - | 7310BEP | 50 | 110 | 27 |
| 7310BECBY | 7310BEY | 50 | 110 | 27 | 7310BECBM | - | 50 | 110 | 27 |
| 7211BECBP | 7211BEP | 55 | 100 | 21 | 7211BECBY | 7211BEY | 55 | 100 | 21 |
| 7211BECBM | - | 55 | 100 | 21 | 7311BECBP | - | 55 | 120 | 29 |
| - | 7311BEP | 55 | 120 | 29 | 7311BECBY | 7311BEY | 55 | 120 | 29 |