SKF 71920CE/HCP4AL Angular contact ball bearings,SKF 71920 CE/HCP4AL Super-precision bearings-BEARINGPOWER Co.,Ltd.
Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71920 CE/HCP4AL

71920 CE/HCP4AL

Dimensions
d 100mm
D 140mm
B 20mm
d1 112.4mm
d2 109mm
D1 127.51mm
b 2.3mm
C1 10.9mm
C2 3mm
C3 3.3mm
r1,2min.1.1mm
r3,4min.0.6mm
a 26.7mm
Abutment dimensions
damin.106mm
dbmin.103.2mm
Damax.134mm
Dbmax.136.8mm
ramax.1mm
rbmax.0.6mm
dn 115.4mm
Calculation data
Basic dynamic load ratingC 39kN
Basic static load ratingC0 31.5kN
Fatigue load limitPu 1.2kN
Attainable speed for grease lubrication  15500r/min
Attainable speed for oil-air lubrication  24000r/min
Ball diameterDw 12.7mm
Number of ballsz 24 
Reference grease quantityGref 10cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class AGA 208N
Static axial stiffness, preload class A  81N/µm
Preload class BGB 624N
Static axial stiffness, preload class B  129N/µm
Preload class CGC 1250N
Static axial stiffness, preload class C  178N/µm
Calculation factors
Calculation factorf 1.18 
Calculation factorf1 1 
Calculation factorf2A 1 
Calculation factorf2B 1.05 
Calculation factorf2C 1.09 
Calculation factorfHC 1.01 
Calculation factorf0 8.5 
Mass
Mass bearing  0.65kg
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Hot number: 407250 470521 51264 F 7030 CD/P4AH1 FY 55 TF/VA228 FYK 20 WD IR 55x63x25 NCF 2244 ECJB NKIA 59/22 NUP 2222 ECML OH 32/670 H PBMF 14016090 M1G1 PFD 15 TF PWM 809060 SYNT 65 LTF

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