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Bearing WFN684 ZZ (KOYO)
Deep groove ball bearings WFN684 ZZ
Bearing number : WFN684 ZZ
Size (mm) : 4x9x4
Brand : KOYO
Bore Diameter (mm) : 4
Outer Diameter (mm) : 9
Width (mm) : 4
Bearing dimensions and specification in KOYO catalogue:
d - 4 mm
D - 9 mm
B - 4 mm
C - 4 mm
r - 0,15 mm
D2 - 10,3 mm
da min. - 5,2 mm
ra max. - 0,1 mm
C2 - 1 mm
Weight - 0,001 Kg
Basic dynamic load rating (C) - 0,64 kN
Basic static load rating (C0) - 0,23 kN
(Grease) Lubrication Speed - 59 000 r/min
Calculation factor (f0) - 12,8
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