Acoustic response of 100 Cr 6 (SAE 52100 chrome steel) material ball bearing in experimental oil starvation failure modes

Abstract

Materials which are used in rotating elements face with faster deterioration due to vibration, acoustic emissions and the most common rotating element in dynamic mechanical systems is the bearing element. Due to surface and micro-structure features, components of the bearings’ frictional effect vary in different characteristics such as acoustical response. Particulary, as the oil starvation occur in bearings by the time, the material of the bearing inner race, outer race, balls gain higher priority for preventing internal and external failures. In this study, some failure modes are experimented with ball bearings made of 100 Cr 6 (SAE 52100 chrome steel) and evaluated respect to material acoustic response. According to the conclusion, acoustic characteristic responses are achieved in time-domain and frequency-domain in different rotating speeds; and also found that overall RMS values of the acoustic signals are in increasing trend respect to the material deterioration response.