SKF 7004CD/P4A, Size: 20x42x12. SKF 7004CD/P4A are used in a wide variety of applications, suitable for high speeds and are robust in operation, and need little maintenance.
Angular contact ball bearings, super-precision 7004 CD/P4A
Bearing number : 7004 CD/P4A
Size (mm) : 20x42x12
Brand : SKF
Bore Diameter (mm) : 20
Outer Diameter (mm) : 42
Width (mm) : 12
Bearing dimensions and specification in SKF catalogue:
d - 20 mm
D - 42 mm
B - 12 mm
d1 - 27.1 mm
d2 - 27.1 mm
D1 - 34.8 mm
r1,2 - min. - 0.6 mm
r3,4 - min. - 0.3 mm
a - 10.2 mm
da - min. - 23.2 mm
db - min. - 23.2 mm
Da - max. - 38.8 mm
Db - max. - 40 mm
ra - max. - 0.6 mm
rb - max. - 0.3 mm
dn - 28.4 mm
Basic dynamic load rating - C - 8.7 kN
Basic static load rating - C0 - 4.3 kN
Fatigue load limit - Pu - 0.18 kN
Limiting speed for grease lubrication - 43000 r/min
Limiting speed for oil lubrication - 63000 mm/min
Ball - Dw - 6.35 mm
Ball - z - 12
Gref - 0.9 cm3
Calculation factor - f0 - 9.2
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 - 1.02
Calculation factor - f2C - 1.05
Calculation factor - f2D - 1.09
Calculation factor - fHC - 1
Preload class A - 23 N/micron
Preload class B - 30 N/micron
Preload class C - 42 N/micron
Preload class D - 59 N/micron
Mass bearing - 0.068 kg
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