| Bore diameter | d | 25 | mm |
| Width | B | 21 | mm |
| Shoulder diameter inner ring (small side face) | d2 | ≈40.32 | |
| Distance pressure point | a | 33 | mm |
| Chamfer dimension outer ring small side face | r3,4 | min.1.5 |
| Outside diameter | d2 | 80 | mm |
| Shoulder diameter inner ring (large side face) | d1 | ≈49.2 | |
| Shoulder diameter outer ring (large side face) | D1 | ≈60.2 | |
| chamfer dimension | rmin | min.1.5 |
