SKF 7012ACD/HCP4A Angular contact ball bearings,SKF 7012 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 7012 ACD/HCP4A

7012 ACD/HCP4A

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  15000r/min
Attainable speed for oil-air lubrication  24000r/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  186N/µm
Preload class BGB 480N
Static axial stiffness, preload class B  243N/µm
Preload class CGC 960N
Static axial stiffness, preload class C  323N/µm
Preload class DGD 1920N
Static axial stiffness, preload class D  437N/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 1.02 
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  0.34kg
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Hot number: 6203-RSL 6313-2Z/VA228 65x80x8 HMSA10 V 70/560 AMB 95x120x12 HMSA10 RG 99139 AOH 24156 FYTB 1.3/16 RM HK 6012 KD21-504 SAFS 23056 KA x 10 PRM 808560 PWTR 25.2RS S71906 ACE/HCP4A SYNT 55 F

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