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SKF 71904 ACE/HCP4A Angular Contact Ball Bearing

BRAND : SKF
Dimensions

d 20mm
D 37mm
B 9mm
d1 25.65mm
d2 24.4mm
D1 31.49mm
r1,2min.0.3mm
r3,4min.0.15mm
a 11.6mm

Details

Dimensions
d 20mm
D 37mm
B 9mm
d1 25.65mm
d2 24.4mm
D1 31.49mm
r1,2min.0.3mm
r3,4min.0.15mm
a 11.6mm
Abutment dimensions
damin.22mm
dbmin.22mm
Damax.35mm
Dbmax.36.2mm
ramax.0.3mm
rbmax.0.15mm
dn 26.7mm
Calculation data
Basic dynamic load ratingC 4.68kN
Basic static load ratingC0 2.28kN
Fatigue load limitPu 0.098kN
Attainable speed for grease lubrication  60000r/min
Attainable speed for oil-air lubrication  95000r/min
Ball diameterDw 4.762mm
Number of ballsz 14 
Reference grease quantityGref 0.5cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class AGA 42N
Static axial stiffness, preload class A  52N/µm
Preload class BGB 130N
Static axial stiffness, preload class B  76N/µm
Preload class CGC 250N
Static axial stiffness, preload class C  98N/µm
Calculation factors
Calculation factorf 1.04 
Calculation factorf1 0.98 
Calculation factorf2A 1 
Calculation factorf2B 1.04 
Calculation factorf2C 1.08 
Calculation factorfHC 1.01 
Calculation factore 0.68 
Calculation factor (single, tandem)Y2 0.87 
Calculation factor (single, tandem)Y0 0.38 
Calculation factor (single, tandem)X2 0.41 
Calculation factor (back-to-back, face-to-face)Y1 0.92 
Calculation factor (back-to-back, face-to-face)Y2 1.41 
Calculation factor (back-to-back, face-to-face)Y0 0.76 
Calculation factor (back-to-back, face-to-face)X2 0.67 
Mass
Mass bearing  0.032kg