| Bore diameter | d | 20 | mm |
| Anchura | B | 12 | mm |
| Shoulder diameter of inner ring (small side face) | d2 | 24,80 | mm |
| Chamfer dimension (large side face) | r1,2 | min.0.6 | |
| Distance from side face to pressure point | a | 10,20 | mm |
| Diámetro exterior | d2 | 42 | mm |
| Shoulder diameter of inner ring (large side face) | d1 | 26,60 | mm |
| Recess diameter of outer ring (large side face) | D2 | 36,50 | mm |
| Chamfer dimension (small side face) | r3,4 | min.0.3 |
