| Boundary dimensions(mm) | Mass(g) | Bearing Number | ||
| d | F | B | (Approx.) | |
| 50 | 58 | 22 | 115 | IR50X58X22 | 50 | 58 | 23 | 119 | IR50X58X23 |
| 50 | 58 | 40 | 209 | IR50X58X40 | 50 | 60 | 20 | 129 | IR50X60X20 |
| 50 | 60 | 25 | 163 | IR50X60X25 | 50 | 60 | 28 | 183 | IR50X60X28 |
| 55 | 60 | 25 | 86 | IR55X60X25 | 55 | 60 | 35 | 121 | IR55X60X35 |
| 55 | 63 | 25 | 141 | IR55X63X25 | 55 | 63 | 45 | 256 | IR55X63X45 |
| 55 | 65 | 28 | 198 | IR55X65X28 | 60 | 65 | 41 | 214 | IR60X65X41 |
| 60 | 68 | 25 | 152 | IR60X68X25 | 60 | 68 | 35 | 213 | IR60X68X35 |
| 60 | 68 | 45 | 275 | IR60X68X45 | 60 | 70 | 25 | 195 | IR60X70X25 |
| 60 | 70 | 28 | 216 | IR60X70X28 | 65 | 72 | 25 | 142 | IR65X72X25 |
| 65 | 72 | 45 | 259 | IR65X72X45 | 65 | 73 | 25 | 164 | IR65X73X25 |
| 65 | 73 | 35 | 232 | IR65X73X35 | 65 | 75 | 28 | 230 | IR65X75X28 |
| 70 | 80 | 25 | 224 | IR70X80X25 | 70 | 80 | 30 | 267 | IR70X80X30 |
