| Bore diameter | d | 20 | mm |
| Base width | b | 32 | mm |
| Width Inner ring | B | 31 | mm |
| Height of spherical seat centre | H | 25,30 | mm |
| Overall height | H | 50,50 | mm |
| Overall length | L | 98,50 | mm |
| Distance from locking device side face to raceway centre | s1 | 18,30 | mm |
| Shoulder diameter inner ring | d1 | ≈28.2 | |
| Top width | A1 | 21 | mm |
| Distance from locking device side face to thread centre | B4 | 4,50 | mm |
| Foot height | H1 | 3 | mm |
| Distance between attachment bolts | J | 76 | mm |
| Diameter of attachment bolt hole | N | 9,60 | mm |
