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Bearing 688A (NTN)
Deep groove ball bearings 688A
Bearing number : 688A
Size (mm) : 8x16x4
Brand : NTN
Bore Diameter (mm) : 8
Outer Diameter (mm) : 16
Width (mm) : 4
Bearing dimensions and specification in NTN catalogue:
d - 8 mm
D - 16 mm
B - 4 mm
C - 4 mm
r min. - 0,2 mm
da min. - 9,6 mm
da max - 10 mm
Da max. - 14,4 mm
ra max. - 0,2 mm
Weight - 3,1 Kg
Basic dynamic load rating (C) - 1,61 kN
Basic static load rating (C0) - 0,715 kN
(Grease) Lubrication Speed - 35 000 r/min
(Oil) Lubrication Speed - 41 000 r/min
Calculation factor (f0) - 14
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