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Bearing 6311NR (NTN)
Deep groove ball bearings 6311NR
Bearing number : 6311NR
Size (mm) : 55x120x29
Brand : NTN
Bore Diameter (mm) : 55
Outer Diameter (mm) : 120
Width (mm) : 29
Bearing dimensions and specification in NTN catalogue:
d - 55 mm
D - 120 mm
B - 29 mm
C - 29 mm
rn - 0,5 mm
a - 4,06 mm
b - 3,1 mm
f - 2,82 mm
r min. - 2 mm
r0 max. - 0,6 mm
D1 - 115,21 mm
D2 - 129,7 mm
da min. - 64 mm
da max - 74 mm
Da max. - 111 mm
ra max. - 2 mm
Dx - 131,5 mm
Cy - 6,5 mm
Cz - 2,9 mm
rn - 0,5 mm
Weight - 1,37 Kg
Basic dynamic load rating (C) - 71,5 kN
Basic static load rating (C0) - 45 kN
(Grease) Lubrication Speed - 5 800 r/min
(Oil) Lubrication Speed - 6 800 r/min
Calculation factor (f0) - 13,2
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