| Distance from locking device side face to raceway centre | s1 | 33.40 | mm |
| Bore diameter | d | 55 | mm |
| Overall width | A | 47.50 | mm |
| Depth of centring recess | A3 | 3.20 | mm |
| Overall bearing width | B | 55.60 | mm |
| Top external diameter | Db1 | 122 | mm |
| Centering diameter | Dc | 150.80 | mm |
| Overall length | L | 162 | mm |
| Overall unit width | T | 64.40 | mm |
| outer diameter inner ring | da | ≈69.06 | |
| Flange width | A | 16 | mm |
| Standout of end cover | A5 | 37.50 | mm |
| Distance from locking device side face to thread centre | B4 | 9 | mm |
| Base external diameter | Db2 | 134 | mm |
| Distance between attachment bolts | J | 130 | mm |
| Diameter of attachment bolt hole | N | 18 | mm |
| Manufacturer | Part Number |
|---|---|
| INA | RCJY55 (INA) |
| FAG | UCF211-J7 (FAG) |
