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Lubricants, Volume 8, Issue 1 (January 2020) – 11 articles
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Cover Story (view full-size image) Lubricants have a large influence on gearbox power losses. Recent investigations on a gear [...] Read more. Lubricants have a large influence on gearbox power losses. Recent investigations on a gear efficiency test rig have shown the high potential of water-containing gear fluids in drastically reducing load-dependent gear losses and temperatures. In this study, the bearing power losses with water-containing gear fluids were explicitly evaluated at a specific bearing power loss test rig and compared with mineral and polyalphaolefin oils. For all investigated lubricants, a Stribeck curve behavior of the load-dependent losses was observed. The water-containing gear fluids demonstrated lower no-load bearing losses and higher load-dependent bearing losses at high rotational speeds. View this paper.