SKF NNU4926B/SPW33 bearing130x180x50
the suspect bearing and sent it to SKF for a rigorous bearing failure analysis. SKF confirmed that the bearing was counter-feit, which nearly caused the “repairs” to be worse than the original problem.
Cylindrical roller bearings NNU 4926 B/SPW33
Bearing number : NNU 4926 B/SPW33
Size (mm) : 130x180x50
Brand : SKF
Bore Diameter (mm) : 130
Outer Diameter (mm) : 180
Width (mm) : 50
Bearing dimensions and specification in SKF catalogue:
d - 130 mm
D - 180 mm
B - 50 mm
C - 50 mm
b - 5,5 mm
r1 min. - 1,5 mm
r2 min. - 1,5 mm
r3 min. - 1 mm
r4 min. - 1 mm
D1 - 162 mm
F - 146 mm
K - 3 mm
da min. - 137 mm
da max - 144 mm
Da max. - 172 mm
db min - 149 mm
ra max. - 1,5 mm
S - 2,2 mm
dh - 147 mm
Weight - 3,85 Kg
Basic dynamic load rating (C) - 187 kN
Basic static load rating (C0) - 390 kN
(Grease) Lubrication Speed - 4 300 r/min
(Oil) Lubrication Speed - 4 800 r/min
Fatigue load limit (Pu) - 41,5
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