Journal
TRIBOLOGY TRANSACTIONS
Volume 65, Issue 5, Pages 869-879Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10402004.2022.2091067
Keywords
Rolling bearings; grease; film thickness; elastohydrodynamic lubrication; capacitance method
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Funding
- SKF Research and Technology Development and Shell
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This article presents a new method for measuring the film thickness in a rolling bearing and investigates the impact of speed on the film thickness.
Presented in this article is a new method to measure the film thickness in a rolling bearing running under starved conditions, such as in grease-lubricated bearings, using the electrical capacitance method. The method was used to study the impact of speed on film thickness. Results show that fully flooded conditions prevail at lower speeds where the film thickness increases with increasing speed. At higher speeds, where grease-lubricated bearings run under starved lubrication conditions, this increase is less pronounced. At even higher speeds, the film thickness becomes almost independent of the speed.
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