Angular contact ball bearings 7238
Bearing number : 7238
Size (mm) : 190x340x55
Brand : NACHI
Bore Diameter (mm) : 190
Outer Diameter (mm) : 340
Width (mm) : 55
Bearing dimensions and specification in NACHI catalogue:
d - 190 mm
D - 340 mm
B - 55 mm
C - 55 mm
Angle (α) - 30 °
a - 49.0 mm
r min. - 4 mm
r1 min. - 1.5 mm
da min. - 208 mm
Da max. - 322 mm
ra max. - 3 mm
Weight - 21.5 Kg
Basic dynamic load rating (C) - 315 kN
Basic static load rating (C0) - 410 kN
(Grease) Lubrication Speed - 1600 r/min
(Oil) Lubrication Speed - 2200 r/min
The installation unit must be issued by the provincial quality and technical supervision department. NACHI 7238B Special equipment installation (maintenance) safety approval certificate 2 outer ring outer ring raceway bearing ring on the inner surface. If the fit clearance exceeds the specified usage limit, the critical frequency is changed.
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