| Diameter of spherical seat | Da | 80 | mm |
| Centring diameter | Dc | 100 | mm |
| Axial position of spherical seat (from support surface) | A2 | 21 | mm |
| Distance between attachment bolts | J | 120 | mm |
| Overall width | A | 145 | mm |
| External diameter | Db | 100.10 | mm |
| Flange width | A | 9 | mm |
| Height of spherical seat centre | H | 10 | mm |
| Width of attachment bolt hole | N | 84.90 | mm |
| Length of attachment bolt hole | N1 | 14 | mm |
