Angular contact ball bearings, super-precision 71934 ACD/HCP4AH1
Bearing number : 71934 ACD/HCP4AH1
Size (mm) : 170x230x28
Brand : SKF
Bore Diameter (mm) : 170
Outer Diameter (mm) : 230
Width (mm) : 28
Bearing dimensions and specification in SKF catalogue:
d - 170 mm
D - 230 mm
B - 28 mm
d1 - 188.5 mm
d2 - 188.5 mm
D1 - 211.5 mm
K - 0.6 mm
C1 - 7.32 mm
r1,2 - min. - 2 mm
r3,4 - min. - 1 mm
a - 60.8 mm
da - min. - 179 mm
db - min. - 179 mm
Da - max. - 221 mm
Db - max. - 225 mm
ra - max. - 2 mm
rb - max. - 1 mm
dn - 193.5 mm
Basic dynamic load rating - C - 124 kN
Basic static load rating - C0 - 160 kN
Fatigue load limit - Pu - 4.8 kN
Limiting speed for grease lubrication - 6000 r/min
Limiting speed for oil lubrication - 9000 mm/min
Ball - Dw - 19.05 mm
Ball - z - 29
Gref - 36 cm3
Calculation factor - e - 0.68
Calculation factor - Y2 - 0.87
Calculation factor - Y0 - 0.38
Calculation factor - X2 - 0.41
Calculation factor - Y1 - 0.92
Calculation factor - Y2 - 1.41
Calculation factor - Y0 - 0.76
Calculation factor - X2 - 0.67
Preload class A - GA - 800 N
Preload class B - GB - 1600 N
Preload class C - GC - 3200 N
Preload class D - GD - 6400 N
Calculation factor - f - 1.3
Calculation factor - f1 - 0.98
Calculation factor - f2A - 1
Calculation factor - f2B - 1.07
Calculation factor - f2C - 1.12
Calculation factor - f2D - 1.17
Calculation factor - fHC - 1.04
Preload class A - 460 N/micron
Preload class B - 606 N/micron
Preload class C - 811 N/micron
Preload class D - 1112 N/micron
Mass bearing - 2.344 kg
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