A novel bearing test rig for in-situ TEHL measurements

Advanced Lubrication - Manjunath Manjunath

Despite multiple academic studies on Elasto-Hydrodynamic Lubrication (EHL) in simplified ball-on-glass-disc test, in-situ measurements of Thermo-Elasto-Hydrodynamic Lubrication (TEHL) in real roller bearings, operating under highly variable operating conditions, remains a large challenge. In this project, the main goal is to design and develop a test setup to measure in-situ TEHL conditon, while operating under controllable dynamic loads, accelerating/decelerating rolling-sliding motions, and well-controlled lubricant conditions. Thereto small sensors will be implemented into the bearing raceways in order to measure film-thickness, pressure and temperature.

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