SKF S71909ACE/HCP4A Angular contact ball bearings,SKF S71909 ACE/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 S71909 ACE/HCP4A

S71909 ACE/HCP4A

Dimensions
d 45mm
D 68mm
B 12mm
d1 52.7mm
d2 51mm
D2 62.6mm
r1,2min.0.6mm
r3,4min.0.3mm
a 20mm
Abutment dimensions
damin.48.2mm
damax.52.1mm
dbmin.47mm
dbmax.50.4mm
Damax.64.8mm
Dbmax.66mm
ramax.0.6mm
rbmax.0.3mm
Calculation data
Basic dynamic load ratingC 9.75kN
Basic static load ratingC0 6.55kN
Fatigue load limitPu 0.275kN
Attainable speed for grease lubrication  30000r/min
Ball diameterDw 6.35mm
Number of ballsz 21 
Preload and stiffness (back-to-back, face-to-face)
Preload class AGA 88N
Static axial stiffness, preload class A  94N/µm
Preload class BGB 265N
Static axial stiffness, preload class B  141N/µm
Preload class CGC 529N
Static axial stiffness, preload class C  185N/µm
Calculation factors
Calculation factorf 1.09 
Calculation factorf1 0.98 
Calculation factorf2A 1 
Calculation factorf2B 1.04 
Calculation factorf2C 1.08 
Calculation factorfHC 1.01 
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  0.11kg
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Hot number： BD-231/500 CAK/W33-AOHX 31/500 G 36179 470486 597334 7473 FY 2.11/16 TF FYJ 40 TF NJ 326 ECM NK 38/20 NUP 2217 ECML OKC 570 RLS 6-2Z RNAO 40x55x20 S71906 CE/HCP4A SAF 22532 T

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