Angular contact ball bearings, super-precision 71930 CD/P4AH1
Bearing number : 71930 CD/P4AH1
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
K - 0.6 mm
C1 - 7.32 mm
r1,2 - min. - 2 mm
r3,4 - min. - 1 mm
a - 38.2 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 - 125 kN
Basic static load rating - C0 - 146 kN
Fatigue load limit - Pu - 4.8 kN
Limiting speed for grease lubrication - 6300 r/min
Limiting speed for oil lubrication - 9500 mm/min
Ball - Dw - 19.05 mm
Ball - z - 26
Gref - 33 cm3
Calculation factor - f0 - 16.2
Preload class A - GA - 470 N
Preload class B - GB - 940 N
Preload class C - GC - 1880 N
Preload class D - GD - 3760 N
Calculation factor - f - 1.24
Calculation factor - f1 - 1
Calculation factor - f2A - 1
Calculation factor - f2B - 1.04
Calculation factor - f2C - 1.09
Calculation factor - f2D - 1.15
Calculation factor - fHC - 1
Preload class A - 154 N/micron
Preload class B - 211 N/micron
Preload class C - 297 N/micron
Preload class D - 435 N/micron
Mass bearing - 2.55 kg
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