| Diameter of spherical seat | Da | 90 | mm |
| Top width | A1 | 38 | mm |
| Foot height | H1 | 22 | mm |
| Distance between attachment bolts | J | min.151 | |
| Width of attachment bolt hole | N | 20 | mm |
| Base width | b | 58 | mm |
| Height of spherical seat centre | H | 57.20 | mm |
| Overall height | H | 114 | mm |
| Overall length | L | 206 | mm |
| Length of attachment bolt hole | N1 | 26.50 | mm |
