Specifications of SKF Bearing 71948 ACD/HCP4AL
Dimensions
d | 240.0mm | Bore diameter |
D | 320.0mm | Outside diameter |
B | 38.0mm | Width |
d1 | 264.7mm | Shoulder diameter of inner ring (large side face) |
d2 | 264.7mm | Shoulder diameter of inner ring (small side face) |
D1 | 295.3mm | Shoulder diameter of outer ring (large side face) |
b | 3.5mm | Width of lubrication groove |
C1 | 20.9mm | Distance from outer ring side face to lubrication groove / lubrication hole |
C2 | 7.1mm | Distance from outer ring side face to O-ring groove |
C3 | 5.45mm | Distance from outer ring side face to O-ring groove |
r1,2 | 2.1mm | Chamfer dimension (large side face) |
r3,4 | 1.0mm | Chamfer dimension (small side face) |
a | 84.5mm | Distance from side face to pressure point |
Abutment dimensions
da | 251.0mm | Diameter of shaft abutment |
db | 251.0mm | Diameter of shaft abutment |
Da | 309.0mm | Diameter of housing abutment |
Db | 315.0mm | Diameter of housing abutment |
ra | 2.0mm | Radius of fillet |
rb | 1.0mm | Radius of fillet |
dn | 271.4mm | Position of oil nozzle |
Calculation data
Basic dynamic load rating | C | 216.0kN |
Basic static load rating | C0 | 305.0kN |
Fatigue load limit | Pu | 5.6kN |
Attainable speed for grease lubrication | 4300.0r/min | |
Attainable speed for oil-air lubrication | 6300.0r/min | |
Contact angle | u03b1 | 25.0u00b0 |
Ball diameter | Dw | 25.4mm |
Number of balls | z | 31.0 |
Reference grease quantity | Gref | 93.0cmu00b3 |
Mass
Mass | 5.98kg |