Gear Oil Micropitting Evaluation


Besides operating conditions such as load, speed, sliding and specific film thickness, the chemical composition of a lubricant has been found to influence micropitting of case hardened gears. The development of micropitting resistant lubricants has been limited both by a lack of mechanism understanding and a lack of a readily available lubricant micropitting test. This paper reports efforts to develop alternate methods to study micropitting performance of individual additives and combinations of additives with a roller disc machine. Concurrently, a full-scale gear test using "real world" gearing is covered.
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