Specifications of SKF Bearing 71809 CD/P4
Dimensions
d | 45.0mm | Bore diameter |
D | 58.0mm | Outside diameter |
B | 7.0mm | Width |
d1 | 49.6mm | Shoulder diameter of inner ring (large side face) |
d2 | 49.6mm | Shoulder diameter of inner ring (small side face) |
D1 | 53.6mm | Shoulder diameter of outer ring (large side face) |
r1,2 | 0.3mm | Chamfer dimension (large side face) |
r3,4 | 0.15mm | Chamfer dimension (small side face) |
a | 10.4mm | Distance from side face to pressure point |
Abutment dimensions
da | 47.0mm | Diameter of shaft abutment |
db | 47.0mm | Diameter of shaft abutment |
Da | 56.0mm | Diameter of housing abutment |
Db | 57.2mm | Diameter of housing abutment |
ra | 0.3mm | Radius of fillet |
rb | 0.15mm | Radius of fillet |
dn | 50.0mm | Position of oil nozzle |
Calculation data
Basic dynamic load rating | C | 4.88kN |
Basic static load rating | C0 | 5.3kN |
Fatigue load limit | Pu | 0.224kN |
Attainable speed for grease lubrication | 22000.0r/min | |
Attainable speed for oil-air lubrication | 34000.0r/min | |
Contact angle | u03b1 | 15.0u00b0 |
Ball diameter | Dw | 3.175mm |
Number of balls | z | 31.0 |
Reference grease quantity | Gref | 0.36cmu00b3 |
Mass
Mass | 0.039kg |