SKF 71930CD/HCP4AH1 Angular contact ball bearings,SKF 71930 CD/HCP4AH1 Super-precision bearings-BEARINGPOWER Co.,Ltd.
Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71930 CD/HCP4AH1

71930 CD/HCP4AH1

Dimensions
d 150mm
D 210mm
B 28mm
d1 168.5mm
d2 168.5mm
D1 191.5mm
K 0.6mm
C1 7.32mm
r1,2min.2mm
r3,4min.1mm
a 38.2mm
Abutment dimensions
damin.159mm
dbmin.159mm
Damax.201mm
Dbmax.205mm
ramax.2mm
rbmax.1mm
dn 173.5mm
Calculation data
Basic dynamic load ratingC 114kN
Basic static load ratingC0 132kN
Fatigue load limitPu 4.15kN
Attainable speed for grease lubrication  7500r/min
Attainable speed for oil-air lubrication  11000r/min
Ball diameterDw 19.05mm
Number of ballsz 23 
Reference grease quantityGref 35cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class AGA 470N
Static axial stiffness, preload class A  158N/µm
Preload class BGB 940N
Static axial stiffness, preload class B  216N/µm
Preload class CGC 1880N
Static axial stiffness, preload class C  306N/µm
Preload class DGD 3760N
Static axial stiffness, preload class D  450N/µm
Calculation factors
Calculation factorf 1.24 
Calculation factorf1 1 
Calculation factorf2A 1 
Calculation factorf2B 1.07 
Calculation factorf2C 1.12 
Calculation factorf2D 1.18 
Calculation factorfHC 1.04 
Calculation factorf0 16.2 
Mass
Mass bearing  2.08kg
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Hot number： 13797 14979 1700 VE R 215-2ZNR 22448 25x45x10 HMS5 V 629/HR11TN 7022 ACD/P4A 7439 84697 C 5918 V D/W R2-6-2RZ NU 2238 ECML SAFS 23056 KAT x 10 SAF 1515 x 2.1/2

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