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Bearing 7311DB (NACHI)
Angular contact ball bearings 7311DB
Bearing number : 7311DB
Size (mm) : 55x120x29
Brand : NACHI
Bore Diameter (mm) : 55
Outer Diameter (mm) : 120
Width (mm) : 29
Bearing dimensions and specification in NACHI catalogue:
d - 55 mm
D - 120 mm
B - 29 mm
C - 29 mm
Angle (α) - 30 °
a - 10.8 mm
r min. - 2 mm
r1 min. - 1 mm
2B - 58 mm
da min. - 61 mm
Da max. - 114 mm
ra max. - 1 mm
Weight - 1.45 Kg
Basic dynamic load rating (C) - 139 kN
Basic static load rating (C0) - 123 kN
(Grease) Lubrication Speed - 4000 r/min
(Oil) Lubrication Speed - 5500 r/min
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