SKF S71920ACE/P4A Angular contact ball bearings,SKF S71920 ACE/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 S71920 ACE/P4A

S71920 ACE/P4A

Dimensions
d 100mm
D 140mm
B 20mm
d1 112.4mm
d2 109mm
D2 130.9mm
r1,2min.1.1mm
r3,4min.0.6mm
a 39.2mm
Abutment dimensions
damin.106mm
damax.111.8mm
dbmin.103.2mm
dbmax.108.4mm
Damax.134mm
Dbmax.136.8mm
ramax.1mm
rbmax.0.6mm
Calculation data
Basic dynamic load ratingC 36.4kN
Basic static load ratingC0 30kN
Fatigue load limitPu 1.14kN
Attainable speed for grease lubrication  11500r/min
Ball diameterDw 12.7mm
Number of ballsz 24 
Preload and stiffness (back-to-back, face-to-face)
Preload class AGA 332N
Static axial stiffness, preload class A  187N/µm
Preload class BGB 996N
Static axial stiffness, preload class B  280N/µm
Preload class CGC 1990N
Static axial stiffness, preload class C  367N/µm
Calculation factors
Calculation factorf 1.18 
Calculation factorf1 0.99 
Calculation factorf2A 1 
Calculation factorf2B 1.04 
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  0.78kg
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Hot number: 12x37x7 HMSA10 V 40x59x8 HMSA10 RG 6009 NR 67533 7016 ACE/P4AL1 71924 ACB/P4AL 7219 BECBP BT4B 332590/HA1 FYTB 25 LDW GEP 180 FS IR 130x150x50 EGS NUP 2328 ECML SAFS 22520 x 3.5/16 T SAFS 22544 x 7.1/2 W 6201-2RS1/VP311

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