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Bearing 7404B (KOYO)
Angular contact ball bearings 7404B
Bearing number : 7404B
Size (mm) : 20x72x19
Brand : KOYO
Bore Diameter (mm) : 20
Outer Diameter (mm) : 72
Width (mm) : 19
Bearing dimensions and specification in KOYO catalogue:
d - 20 mm
D - 72 mm
B - 19 mm
C - 19 mm
Angle (α) - 40 °
a - 29.2 mm
r min. - 1.1 mm
r1 min. - 0.6 mm
da min. - 27 mm
Da max. - 65 mm
ra max. - 1 mm
Weight - 0.395 Kg
(Grease) Lubrication Speed - 8 500 r/min
(Oil) Lubrication Speed - 12 000 r/min
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