Angular contact ball bearings, super-precision 71940 CD/HCP4AH1
Bearing number : 71940 CD/HCP4AH1
Size (mm) : 200x280x38
Brand : SKF
Bore Diameter (mm) : 200
Outer Diameter (mm) : 280
Width (mm) : 38
Bearing dimensions and specification in SKF catalogue:
d - 200 mm
D - 280 mm
B - 38 mm
d1 - 224.7 mm
d2 - 224.7 mm
D1 - 255.3 mm
K - 0.6 mm
C1 - 10 mm
r1,2 - min. - 2.1 mm
r3,4 - min. - 1 mm
a - 51.3 mm
da - min. - 209 mm
db - min. - 209 mm
Da - max. - 271 mm
Db - max. - 275 mm
ra - max. - 2 mm
rb - max. - 1 mm
dn - 231.4 mm
Basic dynamic load rating - C - 208 kN
Basic static load rating - C0 - 265 kN
Fatigue load limit - Pu - 7.2 kN
Limiting speed for grease lubrication - 6000 r/min
Limiting speed for oil lubrication - 8500 mm/min
Ball - Dw - 25.4 mm
Ball - z - 26
Gref - 81 cm3
Calculation factor - f0 - 16.3
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 - 1.23
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 - 224 N/micron
Preload class B - 305 N/micron
Preload class C - 430 N/micron
Preload class D - 627 N/micron
Mass bearing - 5.11 kg
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