Presentation Profile
Evaluation of Grease Degradation and Water Resistance for Rapid Lubricant Health Monitoring
Currently Scheduled: 10/14/2026 - 1:00 PM - 2:00 PM
Room: Exhibit Hall Entrance
Main Author
Raj Shah - Koehler Instrument Company, Inc.
- Steven Alexandre - Koehler Instrument Company, Inc.
Abstract:
Monitoring grease degradation and water resistance for lubricants is essential for predicting its failure. This research was done with a new process using a contact angle machine to assess grease health, which is faster and more optimal compared to older tests. One example of an older test is worked penetration, which can miss early warning signs. In our procedure, we prepared a uniform spread of grease sample and a small water droplet from a pump is deposited onto the surface of the sample. A camera displays the shape of the droplet and software calculates the contact angle. The angle measurement given can be related to the grease’s hydrophobic characteristic and watching how much water gets absorbed by the grease over time reveals its degradation from oxidation or moisture. We validated our contact angle results by comparing them to standard tests which contained similar results. Using this method, the tests are both consistent and repeatable. Overall, the contact angle technique gives us a quick and reliable way to check grease conditions, making it a practical tool for quality checks and maintenance planning.
