Failures of machines having rotating parts are mostly caused by damage to bearings and conventional diagnostic methods have found difficulties in performing the early detection of such damage, so that more advanced diagnosis is necessary. This study therefore applies an ultrasonic technique to bearing life tests. The experimental results of ultrasonic wave pulse (UWP) echoes have demonstrated that the time intervals between peaNs of UWP echoes varied in accordance with the movement of rolling balls. The...
英字タイトル:
Abnormality Diagnosis of Rolling Bearings by Ultrasonic Technique