| 轴承型号 | 外形尺寸 mm | |||
| 新型号 | 老型号 | d | D | B |
| RNU208 | 292208 | 50 | 80 | 18 | RNU208E | 292208E | 49.5 | 80 | 18 |
| RNU209 | 292209 | 55 | 85 | 19 | RNU209E | 292209E | 54.5 | 85 | 19 |
| RNU210 | 292210 | 60.4 | 90 | 20 | RNU210E | 292210E | 59.5 | 90 | 20 |
| RNU211 | 292211 | 66.5 | 100 | 21 | RNU211E | 292211E | 66 | 100 | 21 |
| RNU212 | 292212 | 73.5 | 110 | 22 | RNU212E | 292212E | 72 | 110 | 22 |
| RNU213 | 292213 | 79.6 | 120 | 23 | RNU213E | 292213E | 78.5 | 120 | 23 |
