Specifications of SKF Bearing 7220 ACD/P4A
Dimensions
d | 100.0mm | Bore diameter |
D | 180.0mm | Outside diameter |
B | 34.0mm | Width |
d1 | 124.7mm | Shoulder diameter of inner ring (large side face) |
d2 | 124.7mm | Shoulder diameter of inner ring (small side face) |
D1 | 155.3mm | Shoulder diameter of outer ring (large side face) |
r1,2 | 2.1mm | Chamfer dimension (large side face) |
r3,4 | 1.1mm | Chamfer dimension (small side face) |
a | 49.9mm | Distance from side face to pressure point |
Abutment dimensions
da | 112.0mm | Diameter of shaft abutment |
db | 112.0mm | Diameter of shaft abutment |
Da | 168.0mm | Diameter of housing abutment |
Db | 173.0mm | Diameter of housing abutment |
ra | 2.0mm | Radius of fillet |
rb | 1.0mm | Radius of fillet |
dn | 131.4mm | Position of oil nozzle |
Calculation data
Basic dynamic load rating | C | 148.0kN |
Basic static load rating | C0 | 129.0kN |
Fatigue load limit | Pu | 4.65kN |
Attainable speed for grease lubrication | 7000.0r/min | |
Attainable speed for oil-air lubrication | 11000.0r/min | |
Contact angle | u03b1 | 25.0u00b0 |
Ball diameter | Dw | 25.4mm |
Number of balls | z | 15.0 |
Reference grease quantity | Gref | 40.899cmu00b3 |
Mass
Mass | 3.24kg |