Specifications of SKF Bearing 71921 ACD/HCP4AH1
Dimensions
d | 105.0mm | Bore diameter |
D | 145.0mm | Outside diameter |
B | 20.0mm | Width |
d1 | 117.3mm | Shoulder diameter of inner ring (large side face) |
d2 | 117.3mm | Shoulder diameter of inner ring (small side face) |
D1 | 132.7mm | Shoulder diameter of outer ring (large side face) |
K | 0.5mm | Diameter of lubrication hole |
C1 | 5.46mm | Distance from outer ring side face to lubrication groove / lubrication hole |
r1,2 | 1.1mm | Chamfer dimension (large side face) |
r3,4 | 0.6mm | Chamfer dimension (small side face) |
a | 39.3mm | Distance from side face to pressure point |
Abutment dimensions
da | 111.0mm | Diameter of shaft abutment |
db | 111.0mm | Diameter of shaft abutment |
Da | 139.0mm | Diameter of housing abutment |
Db | 141.0mm | Diameter of housing abutment |
ra | 1.0mm | Radius of fillet |
rb | 0.6mm | Radius of fillet |
dn | 120.6mm | Position of oil nozzle |
Calculation data
Basic dynamic load rating | C | 57.2kN |
Basic static load rating | C0 | 65.5kN |
Fatigue load limit | Pu | 1.8kN |
Attainable speed for grease lubrication | 9000.0r/min | |
Attainable speed for oil-air lubrication | 15000.0r/min | |
Contact angle | u03b1 | 25.0u00b0 |
Ball diameter | Dw | 12.7mm |
Number of balls | z | 27.0 |
Reference grease quantity | Gref | 11.1cmu00b3 |
Mass
Mass | 0.7kg |