SKF S71908ACD/P4A Angular contact ball bearings,SKF S71908 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 S71908 ACD/P4A

S71908 ACD/P4A

Dimensions
d 40mm
D 62mm
B 12mm
d1 47.1mm
d2 47.1mm
D2 57.12mm
r1,2min.0.6mm
r3,4min.0.3mm
a 18mm
Abutment dimensions
damin.43.2mm
damax.46.6mm
dbmin.43.2mm
dbmax.46.6mm
Damax.58.8mm
Dbmax.60.6mm
ramax.0.6mm
rbmax.0.3mm
Calculation data
Basic dynamic load ratingC 11.7kN
Basic static load ratingC0 8kN
Fatigue load limitPu 0.34kN
Attainable speed for grease lubrication  18000r/min
Ball diameterDw 6.35mm
Number of ballsz 21 
Preload and stiffness (back-to-back, face-to-face)
Preload class AGA 70N
Static axial stiffness, preload class A  89N/µm
Preload class BGB 140N
Static axial stiffness, preload class B  115N/µm
Preload class CGC 280N
Static axial stiffness, preload class C  151N/µm
Preload class DGD 560N
Static axial stiffness, preload class D  199N/µm
Calculation factors
Calculation factorf 1.09 
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  0.11kg
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Hot number: 20596 61820-2RZ 7001 CD/P4AH 7008 CE/HCP4AH1 7008 CE/P4A 71909 ACE/P4A 86738 99839 AOHX 32/500 G BT4B 331649/HA4 C 31/530 M FSAF 1218 T GEG 40 ES IR 95x105x26 W 61809-2RZ

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