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Bearing 674A (NTN)
Deep groove ball bearings 674A
Bearing number : 674A
Size (mm) : 4x7x2
Brand : NTN
Bore Diameter (mm) : 4
Outer Diameter (mm) : 7
Width (mm) : 2
Bearing dimensions and specification in NTN catalogue:
d - 4 mm
D - 7 mm
B - 2 mm
C - 2 mm
r min. - 0,08 mm
da min. - 4,6 mm
da max - 5 mm
Da max. - 6,4 mm
ra max. - 0,08 mm
Weight - 0,28 Kg
Basic dynamic load rating (C) - 0,222 kN
Basic static load rating (C0) - 0,088 kN
(Grease) Lubrication Speed - 54 000 r/min
(Oil) Lubrication Speed - 63 000 r/min
Calculation factor (f0) - 15,3
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