Particle analysis is a service that will predict machinery failure and is usually outsourced. This early-warning procedure has detected problems missed by vibration testing. Both oil and grease analysis can be done with this service.
Oil analysis on a regular basis is recommended. It can identify wear particles of each component in a gearbox. If excess wear of a particular component is detected, the service provider will phone or fax the information immediately.
Contaminants will be identified as well as the condition of the lubricant. This information may indicate the need for more frequent oil changes or a different type of oil (Fig. 8.18).
8.18 An oil analysis instrument. SKI? USA Inc.
Grease analysis will help pinpoint the cause of frequent ball bearing failure. The type of wear (cutting, corrosion, fatigue, etc.) is identified as well as outside contamination. An analysis of the grease’s useful life may indicate a need for more frequent lubrication or for a different grade of grease.