Technical specifications| Locking elements family | VK400 |
| Shaft diameter | 38 mm |
| Hub diameter | 65 mm |
| Ht | 28 mm |
| Number of screws | 14 |
| Screws measure | M6x18 |
| Pa | 18 Kg/mm2 |
| Pn | 11 Kg/mm2 |
| Ma | 1.5 Kgm |
| Transmissible torque | 90 Kgm |
| H | 20 mm |
| H1 | 17 mm |
| FAX | 4500 Kg |
| Filetto estrazione | M8 |
