| Bore diameter | d | 20 | mm |
| Width | B | 15 | mm |
| Shoulder diameter inner ring (small side face) | d2 | ≈26.75 | |
| Distance pressure point | a | 22.80 | mm |
| Chamfer dimension outer ring small side face | r3,4 | min.0.6 |
| Outside diameter | d2 | 52 | mm |
| Shoulder diameter inner ring (large side face) | d1 | ≈32.9 | |
| Shoulder diameter outer ring (large side face) | D1 | ≈40.5 | |
| chamfer dimension | rmin | min.1.1 |
