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Bearing 6909N (NSK)
Deep groove ball bearings 6909N
Bearing number : 6909N
Size (mm) : 45x68x12
Brand : NSK
Bore Diameter (mm) : 45
Outer Diameter (mm) : 68
Width (mm) : 12
Bearing dimensions and specification in NSK catalogue:
d - 45 mm
D - 68 mm
B - 12 mm
C - 12 mm
rn - 0,5 mm
a - 1,7 mm
b - 0,95 mm
r min. - 0,6 mm
r0 max. - 0,25 mm
D1 - 66,7 mm
da min. - 49 mm
da max - 50 mm
Da max. - 64 mm
ra max. - 0,6 mm
Weight - 0,126 Kg
Basic dynamic load rating (C) - 14,1 kN
Basic static load rating (C0) - 10,9 kN
(Grease) Lubrication Speed - 9 500 r/min
(Oil) Lubrication Speed - 12 000 r/min
Calculation factor (f0) - 15,9
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