| Bore diameter | d | 30 | mm |
| Overall width | A | 32.50 | mm |
| Depth of centring recess | A3 | 3.20 | mm |
| Overall bearing width | B | 38.10 | mm |
| Top external diameter | Db1 | 76 | mm |
| Centering diameter | Dc | 93.70 | mm |
| Overall length | L | 108 | mm |
| Distance from locking device side face to raceway centre | s1 | 22.20 | mm |
| outer diameter inner ring | da | ≈39.7 | |
| Flange width | A | 13 | mm |
| Standout of end cover | A5 | 22.50 | mm |
| Distance from locking device side face to thread centre | B4 | 5 | mm |
| Base external diameter | Db2 | 84 | mm |
| Distance between attachment bolts | J | 82.50 | mm |
| Diameter of attachment bolt hole | N | 11.50 | mm |
| Overall unit width | T | 42.20 | mm |
| Manufacturer | Part Number |
|---|---|
| INA | RCJY30-N (INA) |
| FAG | UCF206-J7 (FAG) |
