Angular contact ball bearings, super-precision 71930 ACD/HCP4AL
Bearing number : 71930 ACD/HCP4AL
Size (mm) : 150x210x28
Brand : SKF
Bore Diameter (mm) : 150
Outer Diameter (mm) : 210
Width (mm) : 28
Bearing dimensions and specification in SKF catalogue:
d - 150 mm
D - 210 mm
B - 28 mm
d1 - 168.5 mm
d2 - 168.5 mm
D1 - 191.5 mm
b - 2.6 mm
C1 - 15.6 mm
C2 - 6.6 mm
C3 - 5.6 mm
r1,2 - min. - 2 mm
r3,4 - min. - 1 mm
a - 56.1 mm
da - min. - 159 mm
db - min. - 159 mm
Da - max. - 201 mm
Db - max. - 205 mm
ra - max. - 2 mm
rb - max. - 1 mm
dn - 173.5 mm
Basic dynamic load rating - C - 119 kN
Basic static load rating - C0 - 140 kN
Fatigue load limit - Pu - 4.5 kN
Limiting speed for grease lubrication - 6700 r/min
Limiting speed for oil lubrication - 10000 mm/min
Ball - Dw - 19.05 mm
Ball - z - 26
Gref - 33 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 - 740 N
Preload class B - GB - 1480 N
Preload class C - GC - 2960 N
Preload class D - GD - 5920 N
Calculation factor - f - 1.24
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 - 411 N/micron
Preload class B - 539 N/micron
Preload class C - 719 N/micron
Preload class D - 979 N/micron
Mass bearing - 2.03 kg
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