Specifications of SKF Bearing 71909 CE/HCP4AH1
Dimensions
d | 45.0mm | Bore diameter |
D | 68.0mm | Outside diameter |
B | 12.0mm | Width |
d1 | 52.7mm | Shoulder diameter of inner ring (large side face) |
d2 | 51.0mm | Shoulder diameter of inner ring (small side face) |
D1 | 60.3mm | Shoulder diameter of outer ring (large side face) |
K | 0.5mm | Diameter of lubrication hole |
C1 | 3.75mm | Distance from outer ring side face to lubrication groove / lubrication hole |
r1,2 | 0.6mm | Chamfer dimension (large side face) |
r3,4 | 0.3mm | Chamfer dimension (small side face) |
a | 13.5mm | Distance from side face to pressure point |
Abutment dimensions
da | 48.2mm | Diameter of shaft abutment |
db | 47.0mm | Diameter of shaft abutment |
Da | 64.8mm | Diameter of housing abutment |
Db | 66.0mm | Diameter of housing abutment |
ra | 0.6mm | Radius of fillet |
rb | 0.3mm | Radius of fillet |
dn | 54.2mm | Position of oil nozzle |
Calculation data
Basic dynamic load rating | C | 10.4kN |
Basic static load rating | C0 | 6.8kN |
Fatigue load limit | Pu | 0.212kN |
Attainable speed for grease lubrication | 34000.0r/min | |
Attainable speed for oil-air lubrication | 52000.0r/min | |
Contact angle | u03b1 | 15.0u00b0 |
Ball diameter | Dw | 6.35mm |
Number of balls | z | 21.0 |
Reference grease quantity | Gref | 1.5cmu00b3 |
Mass
Mass | 0.12kg |