SKF 71930CD/HCP4A Angular contact ball bearings,SKF 71930 CD/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 71930 CD/HCP4A

71930 CD/HCP4A

Dimensions
d 150mm
D 210mm
B 28mm
d1 168.5mm
d2 168.5mm
D1 191.5mm
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： 140 VS R 240/1000 CAF/W33 3310 ATN9 TQO design 6207-2Z/VA208 7021 CD/P4AL 71914 CB/HCP4A 7469 D/W R2A-2Z NUP 217 ECML NJ 230 ECML OH 3956 H S71901 CD/P4A SI 80 ESX-2LS SNL 3084 TURT

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