| 轴承型号 | 外形尺寸 mm | |||
| 新型号 | 老型号 | d | D | B |
| RN202 | 502202 | 15 | 30 | 11 | RN202E | 502202E | 15 | 30.3 | 11 |
| RN203 | 502203 | 17 | 33.9 | 12 | RN203E | 502203E | 17 | 35.1 | 12 |
| RN204 | 502204 | 20 | 40 | 14 | RN204E | 502204E | 20 | 41.5 | 14 |
| RN205 | 502205 | 25 | 45 | 15 | RN205E | 502205E | 25 | 46.5 | 15 |
| RN206 | 502206 | 30 | 53.5 | 16 | RN206E | 502206E | 30 | 55.5 | 16 |
| RN207 | 502207 | 35 | 61.8 | 17 | RN207E | 502207E | 35 | 64 | 17 |
