| 轴承型号 | 外形尺寸 mm | |||
| 新型号 | 老型号 | d | D | B |
| RNU2209 | 292509 | 55 | 85 | 23 | RNU2209E | 292509E | 54.5 | 85 | 23 |
| RNU2210 | 292510 | 60.4 | 90 | 23 | RNU2210E | 292510E | 59.5 | 90 | 23 |
| RNU2211 | 292511 | 66.5 | 100 | 25 | RNU2211E | 292511E | 66 | 100 | 25 |
| RNU2212 | 292512 | 73.5 | 110 | 28 | RNU2212E | 292512E | 72 | 110 | 28 |
| RNU2213 | 292513 | 79.6 | 120 | 31 | RNU2213E | 292513E | 78.5 | 120 | 31 |
| RNU2214 | 292514 | 84.5 | 125 | 31 | RNU2214E | 292514E | 83.5 | 125 | 31 |
