| Bore diameter | d | 20 | mm |
| Distance from locking device side face to raceway centre | s1 | 18,30 | mm |
| Overall length | L | 60,50 | mm |
| Overall height | H | 112 | mm |
| Distance from locking device side face to thread centre | B4 | 4,50 | mm |
| Standout of end cover | A5 | 26 | mm |
| Overall width | A | 29,50 | mm |
| Overall unit width | T | 37,30 | mm |
| Diameter of attachment bolt hole | N | 12,30 | mm |
| Distance between attachment bolts | J | 90 | mm |
| Top external diameter | Db1 | 59 | mm |
| Overall bearing width | B | 31 | mm |
| Flange width | A | 15 | mm |
| outer diameter inner ring | da | ≈28.2 |
