| Boundary dimensions(mm) | Mass(g) | Bearing Number | ||
| d | F | B | (Approx.) | |
| 17 | 20 | 30.5 | 20.6 | IR17X20X30.5 | 17 | 21 | 16 | 14.3 | IR17X21X16 |
| 17 | 22 | 13 | 14.9 | IR17X22X13 | 17 | 22 | 14 | 16.4 | IR17X22X14 |
| 17 | 22 | 16 | 18.7 | IR17X22X16 | 17 | 22 | 23 | 27.1 | IR17X22X23 |
| 17 | 24 | 20 | 33.6 | IR17X24X20 | 20 | 24 | 16 | 16.5 | IR20X24X16 |
| 20 | 24 | 20 | 21.3 | IR20X24X20 | 20 | 25 | 12.5 | 16.3 | IR20X25X12.5 |
| 20 | 25 | 17 | 22.4 | IR20X25X17 | 20 | 25 | 18 | 24.3 | IR20X25X18 |
| 20 | 25 | 20 | 27.5 | IR20X25X20 | 20 | 25 | 20.5 | 28.2 | IR20X25X20.5 |
| 20 | 25 | 26.5 | 36.1 | IR20X25X26.5 | 20 | 25 | 30 | 40.9 | IR20X25X30 |
| 20 | 25 | 38.5 | 52.5 | IR20X25X38.5 | 20 | 28 | 20 | 45.2 | IR20X28X20 |
| 22 | 26 | 16 | 17.5 | IR22X26X16 | 22 | 26 | 20 | 23.2 | IR22X26X20 |
| 22 | 28 | 17 | 29.8 | IR22X28X17 | 22 | 28 | 20 | 35 | IR22X28X20 |
| 22 | 28 | 20.5 | 36 | IR22X28X20.5 | 22 | 28 | 30 | 26.7 | IR22X28X30 |
