| Overall width | A | 160 | mm |
| Length of attachment bolt hole | N1 | 21 | mm |
| Shaft diameter | d | 31.75 | mm |
| Top width | A1 | 27 | mm |
| Overall height | H | 93 | mm |
| Step height | A1 | 19 | mm |
| Distance between attachment bolts | J | 126 | mm |
| Width of attachment bolt hole | N | 14 | mm |
| Base width | b | 45 | mm |
| Width Inner ring | B | 42.90 | mm |
| Spherical seat centre height | H1 | 47.60 | mm |
