![](https://reliabilityweb.com/media-library/on-condition-lubrication-and-bearing-health-using-ultrasound.jpg?width=400&height=600&coordinates=0%2C0%2C200%2C0&quality=80&id=28869409)
IMC-2016 - 40:13
by Tom Murphy, SDT Ultrasound Solutions
The measurement of ultrasound with portable devices to provide an objective assessment of the health of a bearing has been well-documented over the last decade. In more recent times, the interconnection between a grease gun and an ultrasound instrument has taken this process one stage further.
This presentation reports on a further evolution - the use of an on-line monitoring system using contact ultrasound sensors to provide a continuous indication of the frictional state and early failure state of rolling element bearings.Case histories showing how this technology can be combined with remote lubrication of difficult-access bearings to provide instant feedback on the benefit or otherwise of individual shots of grease.