Avadhoot Adawale , Amar Pandhare
This article presents an overview of fundamentals of rolling element bearing designs and fault diagnosis of the roller bearings which includes feature extraction, feature selection, and classification. The main aim is to find out interrelation of bearing stress and life capability with the rolling contact fatigue and the attainable bearing life. The article shows the various types of rolling bearing stresses and the analysis of the stress distribution under rolling contact area. It also demonstrates the effect of bearing lubrication, coating and additives on the attainable life and wear. This review addresses the use of new discrete wavelet features for feature extraction comparison of the result with energy definition of discrete wavelet features using Haar wavelet. The research reveals that the new proposed feature performs better than that of existing energy definition features. This article provides a guideline on how to design and study failure of roller bearing for an industrial application.
Rolling Contact Fatigue; Endurance life; Fault diagnosis, Discrete Wavelet Transform