Angular contact ball bearings 7228B
Bearing number : 7228B
Size (mm) : 140x250x42
Brand : NACHI
Bore Diameter (mm) : 140
Outer Diameter (mm) : 250
Width (mm) : 42
Bearing dimensions and specification in NACHI catalogue:
d - 140 mm
D - 250 mm
B - 42 mm
C - 42 mm
Angle (α) - 40 °
a - 60.8 mm
r min. - 3 mm
r1 min. - 1.1 mm
da min. - 154 mm
Da max. - 236 mm
ra max. - 2.5 mm
Weight - 8.78 Kg
Basic dynamic load rating (C) - 197 kN
Basic static load rating (C0) - 214 kN
(Grease) Lubrication Speed - 2000 r/min
(Oil) Lubrication Speed - 2600 r/min
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