Specifications of SKF Bearing 7021 CD/HCP4AL
Dimensions
d | 105.0mm | Bore diameter |
D | 160.0mm | Outside diameter |
B | 26.0mm | Width |
d1 | 121.9mm | Shoulder diameter of inner ring (large side face) |
d2 | 121.9mm | Shoulder diameter of inner ring (small side face) |
D1 | 143.1mm | Shoulder diameter of outer ring (large side face) |
b | 2.4mm | Width of lubrication groove |
C1 | 14.1mm | Distance from outer ring side face to lubrication groove / lubrication hole |
C2 | 6.2mm | Distance from outer ring side face to O-ring groove |
C3 | 5.0mm | Distance from outer ring side face to O-ring groove |
r1,2 | 2.0mm | Chamfer dimension (large side face) |
r3,4 | 1.0mm | Chamfer dimension (small side face) |
a | 30.8mm | Distance from side face to pressure point |
Abutment dimensions
da | 114.0mm | Diameter of shaft abutment |
db | 114.0mm | Diameter of shaft abutment |
Da | 151.0mm | Diameter of housing abutment |
Db | 155.0mm | Diameter of housing abutment |
ra | 2.0mm | Radius of fillet |
rb | 1.0mm | Radius of fillet |
dn | 125.6mm | Position of oil nozzle |
Calculation data
Basic dynamic load rating | C | 95.6kN |
Basic static load rating | C0 | 96.5kN |
Fatigue load limit | Pu | 2.6kN |
Attainable speed for grease lubrication | 10000.0r/min | |
Attainable speed for oil-air lubrication | 15000.0r/min | |
Contact angle | u03b1 | 15.0u00b0 |
Ball diameter | Dw | 17.462mm |
Number of balls | z | 21.0 |
Reference grease quantity | Gref | 20.4cmu00b3 |
Mass
Mass | 1.32kg |