SKF NKIB5903 bearing17x30x20
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.
Needle roller / angular contact ball bearings NKIB 5903
Bearing number : NKIB 5903
Size (mm) : 17x30x20
Brand : SKF
Bore Diameter (mm) : 17
Outer Diameter (mm) : 30
Width (mm) : 20
Bearing dimensions and specification in SKF catalogue:
d - 17 mm
D - 30 mm
B - 20 mm
C - 18 mm
F - 22 mm
r1,2 - min. - 0.3 mm
da - min. - 19 mm
Da - max. - 28 mm
ra - max. - 0.3 mm
Basic dynamic load rating, radial direction - C - 11.4 kN
Basic static load rating, radial direction - C0 - 16.3 kN
Basic dynamic load rating, axial direction - C - 2.2 kN
Basic static load rating, axial direction - C0 - 2.7 kN
Fatigue load limit, radial direction - Pu - 2 kN
Fatigue load limit, axial direction - Pu - 0.116 kN
Reference speed - 18000 r/min
Limiting speed - 20000 r/min
Mass bearing - 0.058 kg
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