| Attachment diameter | d | 12 | mm |
| Width across flats | SW | 6 | mm |
| Seat diameter for lubrication accessories | M | 4 | mm |
| Thread stud | G | M12x1.5 | |
| Distance face outer ring to face side washer | C1 | 0.60 | mm |
| Length shank on stud | B1 | 25 | mm |
| Total length | B | 40.20 | mm |
| Outside diameter | d2 | 30 | mm |
| Diameter of lubrication hole (shank) | M1 | 3 | mm |
| Length thread | G1 | 13 | mm |
| Outside diameter flange ring | d1 | 22.40 | mm |
| Distance lubrication hole to flange ring | B2 | 6 | mm |
| Width Outer ring | C | 14 | mm |
