Specifications of SKF Bearing NJ 311 ECM
Dimensions
| d | 55.0mm | Bore diameter |
| D | 120.0mm | Outside diameter |
| B | 29.0mm | Width |
| d1 | 77.5mm | Shoulder diameter of inner ring |
| D1 | 100.3mm | Shoulder diameter of outer ring |
| F | 70.5mm | Chamfer dimension of loose flange ring |
| r1,2 | 2.0mm | Chamfer dimension |
| r3,4 | 2.0mm | Chamfer dimension |
| s | 2.0mm | Permissible axial displacement |
Abutment dimensions
| da | 65.0mm | Diameter of spacer sleeve |
| da | 68.0mm | Diameter of spacer sleeve |
| db | 80.0mm | Diameter of shaft abutment |
| Da | 109.2mm | Diameter of housing abutment |
| ra | 2.0mm | Radius of fillet |
Calculation data
| Basic dynamic load rating | C | 156.0kN |
| Basic static load rating | C0 | 143.0kN |
| Fatigue load limit | Pu | 18.6kN |
| Reference speed | 6000.0r/min | |
| Limiting speed | 7000.0r/min | |
| Minimum load factor | kr | 0.15 |
| Limiting value | e | 0.2 |
| Axial load factor | Y | 0.6 |
Mass
| Mass | 1.76kg |
Associated products
| Angle ring | HJ 311 EC |
