Specifications of SKF Bearing 71938 CD/HCP4AH1
Dimensions
d | 190.0mm | Bore diameter |
D | 260.0mm | Outside diameter |
B | 33.0mm | Width |
d1 | 211.6mm | Shoulder diameter of inner ring (large side face) |
d2 | 211.6mm | Shoulder diameter of inner ring (small side face) |
D1 | 238.4mm | Shoulder diameter of outer ring (large side face) |
K | 0.6mm | Diameter of lubrication hole |
C1 | 8.6mm | Distance from outer ring side face to lubrication groove / lubrication hole |
r1,2 | 2.0mm | Chamfer dimension (large side face) |
r3,4 | 1.0mm | Chamfer dimension (small side face) |
a | 46.8mm | Distance from side face to pressure point |
Abutment dimensions
da | 199.0mm | Diameter of shaft abutment |
db | 199.0mm | Diameter of shaft abutment |
Da | 251.0mm | Diameter of housing abutment |
Db | 255.0mm | Diameter of housing abutment |
ra | 2.0mm | Radius of fillet |
rb | 1.0mm | Radius of fillet |
dn | 217.4mm | Position of oil nozzle |
Calculation data
Basic dynamic load rating | C | 172.0kN |
Basic static load rating | C0 | 220.0kN |
Fatigue load limit | Pu | 4.55kN |
Attainable speed for grease lubrication | 6300.0r/min | |
Attainable speed for oil-air lubrication | 9000.0r/min | |
Contact angle | u03b1 | 15.0u00b0 |
Ball diameter | Dw | 22.225mm |
Number of balls | z | 28.0 |
Reference grease quantity | Gref | 57.0cmu00b3 |
Mass
Mass | 3.64kg |