Specifications of SKF Bearing 728 ACD/HCP4A
Dimensions
d | 8.0mm | Bore diameter |
D | 24.0mm | Outside diameter |
B | 8.0mm | Width |
d1 | 13.1mm | Shoulder diameter of inner ring (large side face) |
d2 | 13.1mm | Shoulder diameter of inner ring (small side face) |
D1 | 18.9mm | Shoulder diameter of outer ring (large side face) |
r1,2 | 0.3mm | Chamfer dimension (large side face) |
r3,4 | 0.2mm | Chamfer dimension (small side face) |
a | 7.8mm | Distance from side face to pressure point |
Abutment dimensions
da | 10.4mm | Diameter of shaft abutment |
db | 10.4mm | Diameter of shaft abutment |
Da | 21.6mm | Diameter of housing abutment |
Db | 22.2mm | Diameter of housing abutment |
ra | 0.3mm | Radius of fillet |
rb | 0.2mm | Radius of fillet |
dn | 14.3mm | Position of oil nozzle |
Calculation data
Basic dynamic load rating | C | 3.58kN |
Basic static load rating | C0 | 1.34kN |
Fatigue load limit | Pu | 0.04kN |
Attainable speed for grease lubrication | 75000.0r/min | |
Attainable speed for oil-air lubrication | 120000.0r/min | |
Contact angle | u03b1 | 25.0u00b0 |
Ball diameter | Dw | 4.762mm |
Number of balls | z | 8.0 |
Reference grease quantity | Gref | 0.228cmu00b3 |
Mass
Mass | 0.015kg |