Angular contact ball bearings, super-precision 71804 CD/HCP4
Bearing number : 71804 CD/HCP4
Size (mm) : 20x32x7
Brand : SKF
Bore Diameter (mm) : 20
Outer Diameter (mm) : 32
Width (mm) : 7
Bearing dimensions and specification in SKF catalogue:
d - 20 mm
D - 32 mm
B - 7 mm
d1 - 24.1 mm
d2 - 24.1 mm
D1 - 28.1 mm
r1,2 - min. - 0.3 mm
r3,4 - min. - 0.15 mm
a - 7 mm
da - min. - 22 mm
db - min. - 22 mm
Da - max. - 30 mm
Db - max. - 31.2 mm
ra - max. - 0.3 mm
rb - max. - 0.15 mm
dn - 24.5 mm
Basic dynamic load rating - C - 3.9 kN
Basic static load rating - C0 - 2.6 kN
Fatigue load limit - Pu - 0.112 kN
Limiting speed for grease lubrication - 53000 r/min
Limiting speed for oil lubrication - 80000 mm/min
Ball - Dw - 3.175 mm
Ball - z - 17
Gref - 0.18 cm3
Calculation factor - f0 - 16
Preload class A - GA - 20 N
Preload class B - GB - 60 N
Preload class C - GC - 120 N
Calculation factor - f - 1.08
Calculation factor - f1 - 1
Calculation factor - f2A - 1
Calculation factor - f2B - 1.1
Calculation factor - f2C - 1.18
Calculation factor - fHC - 1.02
Preload class A - 25 N/micron
Preload class B - 42 N/micron
Preload class C - 61 N/micron
Mass bearing - 0.017 kg
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