| Boundary dimensions(mm) | Mass(g) | Bearing Number | ||
| d | F | B | (Approx.) | |
| 25 | 29 | 20 | 25.5 | IR25X29X20 | 25 | 29 | 30 | 39.3 | IR25X29X30 |
| 25 | 30 | 16 | 26 | IR25X30X16 | 25 | 30 | 17 | 27.5 | IR25X30X17 |
| 25 | 30 | 18 | 29.8 | IR25X30X18 | 25 | 30 | 20 | 32.6 | IR25X30X20 |
| 25 | 30 | 20.5 | 33.5 | IR25X30X20.5 | 25 | 30 | 26.5 | 43.3 | IR25X30X26.5 |
| 25 | 30 | 30 | 50.1 | IR25X30X30 | 25 | 30 | 32 | 53 | IR25X30X32 |
| 25 | 30 | 38.5 | 63.8 | IR25X30X38.5 | 25 | 32 | 22 | 51.7 | IR25X32X22 |
| 28 | 32 | 17 | 24.5 | IR28X32X17 | 28 | 32 | 20 | 28.4 | IR28X32X20 |
| 28 | 32 | 30 | 43.8 | IR28X32X30 | 29 | 32 | 13 | 14.8 | IR29X32X13 |
| 30 | 35 | 13 | 25 | IR30X35X13 | 30 | 35 | 16 | 30.8 | IR30X35X16 |
| 30 | 35 | 17 | 32.3 | IR30X35X17 | 30 | 35 | 18 | 35.3 | IR30X35X18 |
| 30 | 35 | 20 | 40 | IR30X35X20 | 30 | 35 | 20.5 | 40.7 | IR30X35X20.5 |
| 30 | 35 | 26 | 50.3 | IR30X35X26 | 30 | 35 | 30 | 58.9 | IR30X35X30 |
