Angular contact ball bearings, super-precision 71928 CD/HCP4A
Bearing number : 71928 CD/HCP4A
Size (mm) : 140x190x24
Brand : SKF
Bore Diameter (mm) : 140
Outer Diameter (mm) : 190
Width (mm) : 24
Bearing dimensions and specification in SKF catalogue:
d - 140 mm
D - 190 mm
B - 24 mm
d1 - 155.4 mm
d2 - 155.4 mm
D1 - 174.6 mm
r1,2 - min. - 1.5 mm
r3,4 - min. - 0.6 mm
a - 34.2 mm
da - min. - 147 mm
db - min. - 147 mm
Da - max. - 183 mm
Db - max. - 186 mm
ra - max. - 1.5 mm
rb - max. - 0.6 mm
dn - 159.5 mm
Basic dynamic load rating - C - 95.6 kN
Basic static load rating - C0 - 116 kN
Fatigue load limit - Pu - 3.9 kN
Limiting speed for grease lubrication - 8000 r/min
Limiting speed for oil lubrication - 12000 mm/min
Ball - Dw - 15.875 mm
Ball - z - 29
Gref - 21.6 cm3
Calculation factor - f0 - 16.6
Preload class A - GA - 360 N
Preload class B - GB - 720 N
Preload class C - GC - 1440 N
Preload class D - GD - 2880 N
Calculation factor - f - 1.29
Calculation factor - f1 - 1
Calculation factor - f2A - 1
Calculation factor - f2B - 1.07
Calculation factor - f2C - 1.12
Calculation factor - f2D - 1.18
Calculation factor - fHC - 1.04
Preload class A - 162 N/micron
Preload class B - 223 N/micron
Preload class C - 317 N/micron
Preload class D - 467 N/micron
Mass bearing - 1.386 kg
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