Specifications of SKF Bearing 71811 ACD/HCP4
Dimensions
d | 55.0mm | Bore diameter |
D | 72.0mm | Outside diameter |
B | 9.0mm | Width |
d1 | 60.7mm | Shoulder diameter of inner ring (large side face) |
d2 | 60.7mm | Shoulder diameter of inner ring (small side face) |
D1 | 66.5mm | 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 | 19.3mm | Distance from side face to pressure point |
Abutment dimensions
da | 57.0mm | Diameter of shaft abutment |
db | 57.0mm | Diameter of shaft abutment |
Da | 70.0mm | Diameter of housing abutment |
Db | 71.2mm | Diameter of housing abutment |
ra | 0.3mm | Radius of fillet |
rb | 0.15mm | Radius of fillet |
dn | 61.3mm | Position of oil nozzle |
Calculation data
Basic dynamic load rating | C | 9.56kN |
Basic static load rating | C0 | 10.2kN |
Fatigue load limit | Pu | 0.315kN |
Attainable speed for grease lubrication | 19000.0r/min | |
Attainable speed for oil-air lubrication | 30000.0r/min | |
Contact angle | u03b1 | 25.0u00b0 |
Ball diameter | Dw | 4.762mm |
Number of balls | z | 29.0 |
Reference grease quantity | Gref | 0.88cmu00b3 |
Mass
Mass | 0.073kg |