| Overall width | A | 219 | mm |
| Length of attachment bolt hole | N1 | 27.50 | mm |
| Shaft diameter | d | 55 | mm |
| Top width | A1 | 40 | mm |
| Overall height | H | 126 | mm |
| Step height | A1 | 24 | mm |
| Distance between attachment bolts | J | 171.50 | mm |
| Width of attachment bolt hole | N | 18 | mm |
| Base width | b | 60 | mm |
| Width Inner ring | B | 55.60 | mm |
| Spherical seat centre height | H1 | 63.50 | mm |
