SKF 7012ACD/P4A Angular contact ball bearings,SKF 7012 ACD/P4A Super-precision bearings-BEARINGPOWER Co.,Ltd.
Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 7012 ACD/P4A

7012 ACD/P4A

Dimensions
d 60mm
D 95mm
B 18mm
d1 70.8mm
d2 70.8mm
D1 84.2mm
r1,2min.1.1mm
r3,4min.0.6mm
a 27.2mm
Abutment dimensions
damin.66mm
dbmin.66mm
Damax.89mm
Dbmax.91.8mm
ramax.1mm
rbmax.0.6mm
dn 73.1mm
Calculation data
Basic dynamic load ratingC 39kN
Basic static load ratingC0 33.5kN
Fatigue load limitPu 1.4kN
Attainable speed for grease lubrication  13000r/min
Attainable speed for oil-air lubrication  20000r/min
Ball diameterDw 11.112mm
Number of ballsz 19 
Reference grease quantityGref 5.4cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class AGA 240N
Static axial stiffness, preload class A  168N/µm
Preload class BGB 480N
Static axial stiffness, preload class B  219N/µm
Preload class CGC 960N
Static axial stiffness, preload class C  291N/µm
Preload class DGD 1920N
Static axial stiffness, preload class D  393N/µm
Calculation factors
Calculation factorf 1.12 
Calculation factorf1 0.99 
Calculation factorf2A 1 
Calculation factorf2B 1.02 
Calculation factorf2C 1.05 
Calculation factorf2D 1.08 
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  0.4kg
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Hot number: 18737 21x35x7 CRW1 R 23678 BD-241/560 ECK30J/W33-AOH 241/560 G 32226/DF 331729 51226 625/HR22Q2 7014 ACB/HCP4AL 99251 FSYE 3-3 FYT 1.3/8 TF/VA201 K 19x23x13 K 81140 M NUP 2312 ECML

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