SKF 71934ACD/P4AH1 Angular contact ball bearings,SKF 71934 ACD/P4AH1 Super-precision bearings-BEARINGPOWER Co.,Ltd.
Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71934 ACD/P4AH1

71934 ACD/P4AH1

Dimensions
d 170mm
D 230mm
B 28mm
d1 188.5mm
d2 188.5mm
D1 211.5mm
K 0.6mm
C1 7.32mm
r1,2min.2mm
r3,4min.1mm
a 60.8mm
Abutment dimensions
damin.179mm
dbmin.179mm
Damax.221mm
Dbmax.225mm
ramax.2mm
rbmax.1mm
dn 193.5mm
Calculation data
Basic dynamic load ratingC 124kN
Basic static load ratingC0 160kN
Fatigue load limitPu 4.8kN
Attainable speed for grease lubrication  5000r/min
Attainable speed for oil-air lubrication  7500r/min
Ball diameterDw 19.05mm
Number of ballsz 29 
Reference grease quantityGref 36cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class AGA 800N
Static axial stiffness, preload class A  415N/µm
Preload class BGB 1600N
Static axial stiffness, preload class B  546N/µm
Preload class CGC 3200N
Static axial stiffness, preload class C  731N/µm
Preload class DGD 6400N
Static axial stiffness, preload class D  1002N/µm
Calculation factors
Calculation factorf 1.3 
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  2.85kg
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Hot number: 120x140x12 HMS5 RG 18808 25x42x10 HMS5 V 411803 540 VE R FNL 505 A FYTB 1. WDW FYTBK 30 TF KMFE 13 NU 212 ECML PCM 909560 E PWKR 47.2RS RNAO 25x35x17 SIKAC 14 M SYFWR 25 YTHR

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