| Bore diameter | d | 20 | mm |
| Outside diameter lock nut | d3 | 38 | mm |
| Flange width | A | 12 | mm |
| Width sleeve | B1 | 35 | mm |
| Base external diameter | Db2 | 72 | mm |
| Distance between attachment bolts | J | 70 | mm |
| Diameter of attachment bolt hole | N | 12 | mm |
| Overall unit width | T | 28 | mm |
| outer diameter inner ring | da | ≈33.74 | |
| Overall width | A | 27 | mm |
| Depth of centring recess | A3 | 3.20 | mm |
| Top external diameter | Db1 | 66 | mm |
| Centering diameter | Dc | 74.60 | mm |
| Overall length | L | 95 | mm |
| Distance from lock nut side to raceway centre | s1 | ≈20.5 |
