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Bearing 7004 (KOYO)
Angular contact ball bearings 7004
Bearing number : 7004
Size (mm) : 20x42x12
Brand : KOYO
Bore Diameter (mm) : 20
Outer Diameter (mm) : 42
Width (mm) : 12
Bearing dimensions and specification in KOYO catalogue:
d - 20 mm
D - 42 mm
B - 12 mm
C - 12 mm
Angle (α) - 30 °
a - 15.1 mm
r min. - 0.6 mm
r1 min. - 0.3 mm
da min. - 24.5 mm
Da max. - 37.5 mm
ra max. - 0.6 mm
Weight - 0.079 Kg
(Grease) Lubrication Speed - 19 000 r/min
(Oil) Lubrication Speed - 24 000 r/min
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