SKF 71930ACD/P4AH1 Angular contact ball bearings,SKF 71930 ACD/P4AH1 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 ACD/P4AH1

71930 ACD/P4AH1

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 56.1mm
Abutment dimensions
damin.159mm
dbmin.159mm
Damax.201mm
Dbmax.205mm
ramax.2mm
rbmax.1mm
dn 173.5mm
Calculation data
Basic dynamic load ratingC 108kN
Basic static load ratingC0 125kN
Fatigue load limitPu 3.9kN
Attainable speed for grease lubrication  5600r/min
Attainable speed for oil-air lubrication  8500r/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 740N
Static axial stiffness, preload class A  340N/µm
Preload class BGB 1480N
Static axial stiffness, preload class B  447N/µm
Preload class CGC 2960N
Static axial stiffness, preload class C  596N/µm
Preload class DGD 5920N
Static axial stiffness, preload class D  814N/µm
Calculation factors
Calculation factorf 1.24 
Calculation factorf1 0.98 
Calculation factorf2A 1 
Calculation factorf2B 1.04 
Calculation factorf2C 1.08 
Calculation factorf2D 1.14 
Calculation factorfHC 1 
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  2.5kg
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Hot number: 14500 2075562 2314 M 239/630 CA/W33 24028 CCK30/W33 6303-ZNR AOH 240/670 G BC4B 322261/HB1 TQO design FYJ 25 TF NJ 2322 ECMA NNU 41/1400 M/W33 RMS 13 RNU 310 ECJ YELAG 206

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