Particles. Think about it. Tribological studies on wear-related machine failure rank particle-induced abrasion as the No. 1 cause of wear. This is often referred to as three-body abrasion, where particles become interposed between two surfaces in relative motion, leading to damage (cutting) of both surfaces. Particles contribute to an assortment of other types of wear and failure too, including surface fatigue, silting and erosion.

With this in mind, it is only natural that monitoring the size and concentration of particles in lubricating oil would be of keen interest to the astute reliability professional. It’s no wonder the particle counter is a leading oil analysis instrument and is high on the list of favored instruments in the condition-monitoring field in general.

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