Specifications of SKF Bearing 31330 X
| Dimension series | 7GB |
Dimensions
| d | 150.0mm | Bore diameter |
| D | 320.0mm | Outside diameter |
| T | 82.0mm | Total width |
| d1 | 234.13mm | Shoulder diameter of inner ring |
| B | 75.0mm | Width of inner ring |
| C | 50.0mm | Width of outer ring |
| r1,2 | 5.0mm | Chamfer dimension of inner ring |
| r3,4 | 4.0mm | Chamfer dimension of outer ring |
| a | 96.177mm | Distance side face to pressure point |
Abutment dimensions
| da | 181.0mm | Diameter of shaft abutment |
| db | 169.5mm | Diameter of shaft abutment |
| Da | 251.0mm | Diameter of housing abutment |
| Da | 304.0mm | Diameter of housing abutment |
| Db | 300.0mm | Diameter of housing abutment |
| Ca | 9.0mm | Minimum width of space required in housing on large side face |
| Cb | 32.0mm | Minimum width of space required in housing on small side face |
| ra | 5.0mm | Radius of shaft fillet |
| rb | 4.0mm | Radius of housing fillet |
Calculation data
| Basic dynamic load rating | C | 832.0kN |
| Basic static load rating | C0 | 1020.0kN |
| Fatigue load limit | Pu | 100.0kN |
| Reference speed | 1400.0r/min | |
| Limiting speed | 2000.0r/min | |
| Limiting value | e | 0.83 |
| Axial load factor | Y | 0.72 |
| Axial load factor | Y0 | 0.4 |
Mass
| Mass | 27.2kg |
