Angular contact ball bearings, super-precision 7004 CE/P4AL
Bearing number : 7004 CE/P4AL
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 - 26.6 mm
d2 - 24.8 mm
D1 - 34.21 mm
b - 1.9 mm
C1 - 5.9 mm
C2 - 1.8 mm
C3 - 1.9 mm
r1,2 - min. - 0.6 mm
r3,4 - min. - 0.3 mm
a - 10.2 mm
da - min. - 22 mm
db - min. - 22 mm
Da - max. - 40 mm
Db - max. - 39.6 mm
ra - max. - 0.6 mm
rb - max. - 0.3 mm
dn - 28.1 mm
Basic dynamic load rating - C - 7.4 kN
Basic static load rating - C0 - 3.4 kN
Fatigue load limit - Pu - 0.143 kN
Limiting speed for grease lubrication - 54000 r/min
Limiting speed for oil lubrication - 83000 mm/min
Ball - Dw - 6.35 mm
Ball - z - 12
Gref - 1.1 cm3
Calculation factor - f0 - 7.2
Preload class A - GA - 40 N
Preload class B - GB - 120 N
Preload class C - GC - 235 N
Calculation factor - f - 1.04
Calculation factor - f1 - 1
Calculation factor - f2A - 1
Calculation factor - f2B - 1.03
Calculation factor - f2C - 1.05
Calculation factor - fHC - 1
Preload class A - 21 N/micron
Preload class B - 32 N/micron
Preload class C - 44 N/micron
Mass bearing - 0.064 kg
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