The bearing mechanical damage Analysis

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Bearing mechanical damage refers to the alloy surface of the pad grooves of the different degrees of the severe metal stripping occurs at the contact surface as well as a large area of ??clutter scratch; Under normal circumstances, the cont act surface Injury and ablation phenomenon exist simultaneously. Cause the bearing mechanical damage mainly due to the bearing surface is difficult to form a film or film is severely damaged. bearing factory in china
a. noise, vibration is random;
b vibrational frequencies above 1kHz;
regardless of the speed of how change, the main frequency of the noise is almost constant sound pressure level with the speed and improve;
radial clearance increases, the sound pressure level increased dramatically;
e chock rigidity increases, the overall sound pressure level is lower, even if the speed increases, the total sound pressure level also increased little;
f. the higher the viscosity of the lubricant, the lower the sound pressure level, but for grease lubrication, the viscosity, the soap, the size of the shape of the fibers can affect the noise value.
Raceway sound generating sou rce is due to inherent vibration by the load ferrule. Rings and rolling bodies elastic contact a nonlinear vibration system. Will stimulate the natural vibration of the elastic characteristics when lubrication or not high machining accuracy, passed to the air becomes noise. As we all know, even the highest contemporary ultra-bearing parts of manufacturing technology and processing work surface there will always be varying degrees of tiny geometric error, so roll tiny fluctuations Road and rolling body to stimulate the natural vibration of the vibration system. industrial bearings