Angular contact ball bearings 7228DB
Bearing number : 7228DB
Size (mm) : 140x250x42
Brand : NTN
Bore Diameter (mm) : 140
Outer Diameter (mm) : 250
Width (mm) : 42
Bearing dimensions and specification in NTN catalogue:
d - 140 mm
D - 250 mm
B - 42 mm
C - 42 mm
ra1 max. - 1 mm
Angle (α) - 25 °
a - 77,5 mm
r min. - 3 mm
r1 min. - 1,1 mm
2B - 84 mm
da min. - 154 mm
ra max. - 2,5 mm
Db max - 243 mm
Weight - 17,56 Kg
Basic dynamic load rating (C) - 330 kN
Basic static load rating (C0) - 430 kN
(Grease) Lubrication Speed - 2 200 r/min
(Oil) Lubrication Speed - 2 900 r/min
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