Specifications of SKF Bearing NJ 18/630 ECMA/HB1
Dimensions
| d | 630.0mm | Bore diameter |
| D | 780.0mm | Outside diameter |
| B | 69.0mm | Width |
| d1 | 682.0mm | Shoulder diameter of inner ring |
| D1 | 724.0mm | Shoulder diameter of outer ring |
| F | 667.0mm | Chamfer dimension of loose flange ring |
| r1,2 | 4.0mm | Chamfer dimension |
| s | 1.5mm | Permissible axial displacement |
Abutment dimensions
| da | 645.0mm | Diameter of spacer sleeve |
| da | 662.0mm | Diameter of spacer sleeve |
| db | 685.0mm | Diameter of shaft abutment |
| Da | 765.0mm | Diameter of housing abutment |
| ra | 3.0mm | Radius of fillet |
Calculation data
| Basic dynamic load rating | C | 1100.0kN |
| Basic static load rating | C0 | 2500.0kN |
| Fatigue load limit | Pu | 183.0kN |
| Reference speed | 750.0r/min | |
| Limiting speed | 950.0r/min | |
| Minimum load factor | kr | 0.1 |
| Limiting value | e | 0.2 |
| Axial load factor | Y | 0.6 |
Mass
| Mass | 75.0kg |
