Specifications of SKF Bearing 71911 CB/HCP4A
Dimensions
d | 55.0mm | Bore diameter |
D | 80.0mm | Outside diameter |
B | 13.0mm | Width |
d1 | 63.94mm | Shoulder diameter of inner ring (large side face) |
d2 | 62.7mm | Shoulder diameter of inner ring (small side face) |
D2 | 73.2mm | Recess diameter of outer ring (large side face) |
r1,2 | 1.0mm | Chamfer dimension (large side face) |
r3,4 | 0.3mm | Chamfer dimension (small side face) |
a | 15.6mm | Distance from side face to pressure point |
Abutment dimensions
da | 59.6mm | Diameter of shaft abutment |
db | 59.6mm | Diameter of shaft abutment |
Da | 75.4mm | Diameter of housing abutment |
Db | 78.0mm | Diameter of housing abutment |
ra | 1.0mm | Radius of fillet |
rb | 0.3mm | Radius of fillet |
dn | 64.8mm | Position of oil nozzle |
Calculation data
Basic dynamic load rating | C | 9.95kN |
Basic static load rating | C0 | 8.15kN |
Fatigue load limit | Pu | 0.25kN |
Attainable speed for grease lubrication | 28000.0r/min | |
Attainable speed for oil-air lubrication | 43000.0r/min | |
Contact angle | u03b1 | 15.0u00b0 |
Ball diameter | Dw | 5.556mm |
Number of balls | z | 28.0 |
Reference grease quantity | Gref | 2.58cmu00b3 |
Mass
Mass | 0.17kg |