SKF 71911ACB/P4AL Angular contact ball bearings,SKF 71911 ACB/P4AL Super-precision bearings-BEARINGPOWER Co.,Ltd.
Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71911 ACB/P4AL

71911 ACB/P4AL

Dimensions
d 55mm
D 80mm
B 13mm
d1 63.94mm
d2 62.7mm
D2 73.2mm
b 2mm
C1 6.5mm
C2 3.8mm
C3 1.7mm
r1,2min.1mm
r3,4min.0.3mm
a 26mm
Abutment dimensions
damin.59.6mm
dbmin.59.6mm
Damax.75.4mm
Dbmax.78mm
ramax.1mm
rbmax.0.3mm
dn 64.8mm
Calculation data
Basic dynamic load ratingC 12.7kN
Basic static load ratingC0 12.7kN
Fatigue load limitPu 0.325kN
Attainable speed for grease lubrication  20000r/min
Attainable speed for oil-air lubrication  32000r/min
Ball diameterDw 5.556mm
Number of ballsz 28 
Reference grease quantityGref 2.58cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class AGA 55N
Static axial stiffness, preload class A  88N/µm
Preload class BGB 110N
Static axial stiffness, preload class B  114N/µm
Preload class CGC 330N
Static axial stiffness, preload class C  172N/µm
Calculation factors
Calculation factorf 1.09 
Calculation factorf1 0.99 
Calculation factorf2A 1 
Calculation factorf2B 1.02 
Calculation factorf2C 1.07 
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  0.18kg
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Hot number: 1212 EKTN9 23068 CCK/W33 300x345x22 HDS1 R 32038 X 3211 A-2Z 330x370x20 HDS1 R 414000 7018 CE/HCP4A OH 39/600 HE SIKB 16 F/VZ019 SNL 3176 SSAFS 22640 x 7.1/4 T W 61809 R W 628/9-2RZ WS 89308

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