SKF 71922ACD/HCP4A Angular contact ball bearings,SKF 71922 ACD/HCP4A Super-precision bearings-BEARINGPOWER Co.,Ltd.
Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71922 ACD/HCP4A

71922 ACD/HCP4A

Dimensions
d 110mm
D 150mm
B 20mm
d1 122.3mm
d2 122.3mm
D1 137.7mm
r1,2min.1.1mm
r3,4min.0.6mm
a 40.4mm
Abutment dimensions
damin.116mm
dbmin.116mm
Damax.144mm
Dbmax.146mm
ramax.1mm
rbmax.0.6mm
dn 125.6mm
Calculation data
Basic dynamic load ratingC 58.5kN
Basic static load ratingC0 68kN
Fatigue load limitPu 2.55kN
Attainable speed for grease lubrication  8500r/min
Attainable speed for oil-air lubrication  14000r/min
Ball diameterDw 12.7mm
Number of ballsz 28 
Reference grease quantityGref 11.4cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class AGA 370N
Static axial stiffness, preload class A  304N/µm
Preload class BGB 740N
Static axial stiffness, preload class B  399N/µm
Preload class CGC 1480N
Static axial stiffness, preload class C  535N/µm
Preload class DGD 2960N
Static axial stiffness, preload class D  733N/µm
Calculation factors
Calculation factorf 1.26 
Calculation factorf1 0.98 
Calculation factorf2A 1 
Calculation factorf2B 1.07 
Calculation factorf2C 1.12 
Calculation factorf2D 1.17 
Calculation factorfHC 1.04 
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  0.73kg
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Hot number： BD-21312 EK-H 312 23938 CCK/W33 39304 400601 7011 ACB/P4A 7020 ACB/P4A AOH 30/850 FNL 506 B K 12x18x12 TN MB 48 NUKR 62 XA OKTC 525 PF 80 S7200 CD/HCP4A SAW 23526 x 4.1/2

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