Rolling element bearings fault identification in rotating machines, existing methods of vibration signal processing techniques and practical considerations

摘要

This paper addresses the suitability of vibration monitoring and analysis techniques to detect different types of defects in roller element bearings. Processing techniques are demonstrated on signals acquired from the test rig with defective bearings. As a result it is shown that there is no reliable universal method for bearing failure monitoring from its early occurrence up to bearings failure. Two real life case studies with different types of bearing failures are presented with practical considerations on methods used for failure identification.