| Diameter of spherical seat | Da | 80 | mm |
| Top width | A1 | 29 | mm |
| Foot height | H1 | 5 | mm |
| Distance between attachment bolts | J | 120 | mm |
| Length of attachment bolt hole | N1 | 14 | mm |
| Base width | b | 43 | mm |
| Height of spherical seat centre | H | 43.60 | mm |
| Overall height | H | 86 | mm |
| Overall length | L | 148 | mm |
