| Bore diameter | d | 20 | mm |
| Overall width | A | 29.50 | mm |
| Depth of centring recess | A3 | 3.20 | mm |
| Overall bearing width | B | 31 | mm |
| Top external diameter | Db1 | 57 | mm |
| Centering diameter | Dc | 68.30 | mm |
| Overall length | L | 86 | mm |
| Distance from locking device side face to raceway centre | s1 | 18.30 | mm |
| outer diameter inner ring | da | ≈28.2 | |
| Flange width | A | 11 | mm |
| Standout of end cover | A5 | 20.50 | mm |
| Distance from locking device side face to thread centre | B4 | 4.50 | mm |
| Base external diameter | Db2 | 63 | mm |
| Distance between attachment bolts | J | 63.50 | mm |
| Diameter of attachment bolt hole | N | 11.50 | mm |
| Overall unit width | T | 37.30 | mm |
| Manufacturer | Part Number |
|---|---|
| INA | RCJY20-N (INA) |
