SKF S71911ACD/P4A Angular contact ball bearings,SKF S71911 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 S71911 ACD/P4A

S71911 ACD/P4A

Dimensions
d 55mm
D 80mm
B 13mm
d1 62.7mm
d2 62.7mm
D2 74.57mm
r1,2min.1mm
r3,4min.0.3mm
a 22.4mm
Abutment dimensions
damin.59.6mm
damax.62.1mm
dbmin.59.6mm
dbmax.62.1mm
Damax.75.4mm
Dbmax.78mm
ramax.1mm
rbmax.0.3mm
Calculation data
Basic dynamic load ratingC 18.2kN
Basic static load ratingC0 13.7kN
Fatigue load limitPu 0.585kN
Attainable speed for grease lubrication  15000r/min
Ball diameterDw 7.938mm
Number of ballsz 23 
Preload and stiffness (back-to-back, face-to-face)
Preload class AGA 120N
Static axial stiffness, preload class A  124N/µm
Preload class BGB 240N
Static axial stiffness, preload class B  161N/µm
Preload class CGC 480N
Static axial stiffness, preload class C  211N/µm
Preload class DGD 960N
Static axial stiffness, preload class D  282N/µm
Calculation factors
Calculation factorf 1.15 
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  0.18kg
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Hot number: 120x180x15 HMS5 RG 31758 38x72x10 HMS5 RG 51108 V/HR11T1 6203/HR22Q2 71948 CD/HCP4AL 89180 M FYTB 17 FM NUP 2222 ECML NX 7 TN PCMW 527802 E SAFS 23056 KA x 10.1/2 RPNA 40/55 SAW 23518 x 3.1/4 T YET 205

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