Specifications of SKF Bearing 305272 DB
Dimensions
d | 220.0mm | Bore diameter |
D | 309.5mm | Outside diameter |
B | 76.0mm | Width |
d1 | 252.5mm | Shoulder diameter inner ring for two-piece inner ring |
D1 | 286.0mm | Shoulder diameter outer ring |
b | 13.9mm | Width annular lubrication groove at outer ring |
K | 7.5mm | Diameter lubrication hole (outer ring) |
r1,2 | 2.1mm | Chamfer dimension inner ring for two-piece inner ring |
a | 204.0mm | Distance pressure point(s) |
Abutment dimensions
da | 225.0mm | Abutment diameter shaft |
Da | 284.0mm | Abutment diameter housing |
ra | 2.1mm | Fillet radius |
Calculation data
Basic dynamic load rating | C | 312.0kN |
Basic static load rating | C0 | 520.0kN |
Fatigue load limit | Pu | 13.4kN |
Reference speed | 2000.0r/min | |
Limiting speed | 2000.0r/min | |
Calculation factor | kr | 0.095 |
Calculation factor | e | 0.86 |
Calculation factor | X | 0.62 |
Calculation factor | Y0 | 0.63 |
Calculation factor | Y1 | 0.73 |
Calculation factor | Y2 | 1.17 |
Mass
Mass bearing | 17.7kg |