| Distance between attachment bolts | J | 157 | mm |
| Width of attachment bolt hole | N | 18 | mm |
| Base width | b | 54 | mm |
| Width Inner ring | B | 51.60 | mm |
| Spherical seat centre height | H1 | 57.20 | mm |
| Overall width | A | 203 | mm |
| Length of attachment bolt hole | N1 | 26 | mm |
| Shaft diameter | d | 50 | mm |
| Top width | A1 | 34 | mm |
| Overall height | H | 114 | mm |
| Step height | A1 | 22 | mm |
