Specifications of SKF Bearing 30228
| Dimension series | 4FB |
Dimensions
| d | 140.0mm | Bore diameter |
| D | 250.0mm | Outside diameter |
| T | 45.75mm | Total width |
| d1 | 187.12mm | Shoulder diameter of inner ring |
| B | 42.0mm | Width of inner ring |
| C | 36.0mm | Width of outer ring |
| r1,2 | 4.0mm | Chamfer dimension of inner ring |
| r3,4 | 3.0mm | Chamfer dimension of outer ring |
| a | 47.4mm | Distance side face to pressure point |
Abutment dimensions
| da | 164.0mm | Diameter of shaft abutment |
| db | 156.5mm | Diameter of shaft abutment |
| Da | 219.0mm | Diameter of housing abutment |
| Da | 236.5mm | Diameter of housing abutment |
| Db | 234.0mm | Diameter of housing abutment |
| Ca | 8.0mm | Minimum width of space required in housing on large side face |
| Cb | 9.5mm | 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 | 451.0kN |
| Basic static load rating | C0 | 570.0kN |
| Fatigue load limit | Pu | 58.5kN |
| Reference speed | 1900.0r/min | |
| Limiting speed | 2600.0r/min | |
| Limiting value | e | 0.43 |
| Axial load factor | Y | 1.4 |
| Axial load factor | Y0 | 0.8 |
Mass
| Mass | 8.68kg |
