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Bearing 6811N (NTN)
Deep groove ball bearings 6811N
Bearing number : 6811N
Size (mm) : 55x72x9
Brand : NTN
Bore Diameter (mm) : 55
Outer Diameter (mm) : 72
Width (mm) : 9
Bearing dimensions and specification in NTN catalogue:
d - 55 mm
D - 72 mm
B - 9 mm
C - 9 mm
rn - 0,3 mm
a - 1,7 mm
b - 0,95 mm
r min. - 0,3 mm
r0 max. - 0,25 mm
D1 - 70,7 mm
da min. - 57 mm
da max - 59 mm
Da max. - 70 mm
ra max. - 0,3 mm
Dx - 76 mm
Cy - 2,3 mm
Cz - 0,9 mm
rn - 0,3 mm
Weight - 0,083 Kg
Basic dynamic load rating (C) - 8,8 kN
Basic static load rating (C0) - 8,1 kN
(Grease) Lubrication Speed - 8 700 r/min
(Oil) Lubrication Speed - 10 000 r/min
Calculation factor (f0) - 16,2
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