Specifications of SKF Bearing 663/653
| Dimension series | 655 |
Dimensions
| d | 82.55mm | Bore diameter |
| D | 146.05mm | Outside diameter |
| T | 41.275mm | Total width |
| d1 | 113.515mm | Shoulder diameter of inner ring |
| B | 41.275mm | Width of inner ring |
| C | 31.75mm | Width of outer ring |
| r1,2 | 3.5mm | Chamfer dimension of inner ring |
| r3,4 | 3.3mm | Chamfer dimension of outer ring |
| a | 32.421mm | Distance side face to pressure point |
Abutment dimensions
| da | 96.0mm | Diameter of shaft abutment |
| db | 96.5mm | Diameter of shaft abutment |
| Da | 125.0mm | Diameter of housing abutment |
| Da | 133.5mm | Diameter of housing abutment |
| Db | 138.0mm | Diameter of housing abutment |
| Ca | 6.0mm | 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 | 3.5mm | Radius of shaft fillet |
| rb | 3.3mm | Radius of housing fillet |
Calculation data
| Basic dynamic load rating | C | 270.0kN |
| Basic static load rating | C0 | 320.0kN |
| Fatigue load limit | Pu | 35.5kN |
| Reference speed | 3600.0r/min | |
| Limiting speed | 4300.0r/min | |
| Limiting value | e | 0.4 |
| Axial load factor | Y | 1.5 |
| Axial load factor | Y0 | 0.8 |
Mass
| Mass | 2.78kg |
