| Diameter of spherical seat | Da | 85 | mm |
| Top width | A1 | 36 | mm |
| Foot height | H1 | 20 | mm |
| Distance between attachment bolts | J | min.136 | |
| Width of attachment bolt hole | N | 17 | mm |
| Base width | b | 52 | mm |
| Height of spherical seat centre | H | 54 | mm |
| Overall height | H | 107.50 | mm |
| Overall length | L | 190 | mm |
| Length of attachment bolt hole | N1 | 24.50 | mm |
