Angular contact ball bearings, super-precision 7203 CD/HCP4A
Bearing number : 7203 CD/HCP4A
Size (mm) : 17x40x12
Brand : SKF
Bore Diameter (mm) : 17
Outer Diameter (mm) : 40
Width (mm) : 12
Bearing dimensions and specification in SKF catalogue:
d - 17 mm
D - 40 mm
B - 12 mm
d1 - 24.1 mm
d2 - 24.1 mm
D1 - 32.8 mm
r1,2 - min. - 0.6 mm
r3,4 - min. - 0.3 mm
a - 9.9 mm
da - min. - 21.2 mm
db - min. - 21.2 mm
Da - max. - 35.8 mm
Db - max. - 37.6 mm
ra - max. - 0.6 mm
rb - max. - 0.3 mm
dn - 25.9 mm
Basic dynamic load rating - C - 9.2 kN
Basic static load rating - C0 - 4.2 kN
Fatigue load limit - Pu - 0.176 kN
Limiting speed for grease lubrication - 53000 r/min
Limiting speed for oil lubrication - 75000 mm/min
Ball - Dw - 7.144 mm
Ball - z - 10
Gref - 1.005 cm3
Calculation factor - f0 - 8.5
Preload class A - GA - 35 N
Preload class B - GB - 70 N
Preload class C - GC - 140 N
Preload class D - GD - 280 N
Calculation factor - f - 1.03
Calculation factor - f1 - 1
Calculation factor - f2A - 1
Calculation factor - f2B - 1.01
Calculation factor - f2C - 1.03
Calculation factor - f2D - 1.06
Calculation factor - fHC - 1.01
Preload class A - 23 N/micron
Preload class B - 31 N/micron
Preload class C - 42 N/micron
Preload class D - 59 N/micron
Mass bearing - 0.054 kg
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