Specifications of SKF Bearing 31320 X
| Dimension series | 7GB |
Dimensions
| d | 100.0mm | Bore diameter |
| D | 215.0mm | Outside diameter |
| T | 56.5mm | Total width |
| d1 | 158.61mm | Shoulder diameter of inner ring |
| B | 51.0mm | Width of inner ring |
| C | 35.0mm | Width of outer ring |
| r1,2 | 4.0mm | Chamfer dimension of inner ring |
| r3,4 | 3.0mm | Chamfer dimension of outer ring |
| a | 64.953mm | Distance side face to pressure point |
Abutment dimensions
| da | 121.0mm | Diameter of shaft abutment |
| db | 116.0mm | Diameter of shaft abutment |
| Da | 168.0mm | Diameter of housing abutment |
| Da | 202.5mm | Diameter of housing abutment |
| Db | 202.0mm | Diameter of housing abutment |
| Ca | 7.0mm | Minimum width of space required in housing on large side face |
| Cb | 21.5mm | Minimum width of space required in housing on small side face |
| ra | 4.0mm | Radius of shaft fillet |
| rb | 3.0mm | Radius of housing fillet |
Calculation data
| Basic dynamic load rating | C | 399.0kN |
| Basic static load rating | C0 | 465.0kN |
| Fatigue load limit | Pu | 51.0kN |
| Reference speed | 2200.0r/min | |
| Limiting speed | 3000.0r/min | |
| Limiting value | e | 0.83 |
| Axial load factor | Y | 0.72 |
| Axial load factor | Y0 | 0.4 |
Mass
| Mass | 8.64kg |
