Self-lubricating polymer cages for space-proofed bearings: performance and roundness |
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| Affiliation: | 1. DFVLR, Pfaffenwaldring 38-40, D-7000 Stuttgart 80, West Germany;1. Chair of Mechanical Engineering, Montanuniversität Leoben, Franz-Josef-Straße 18, 8700 Leoben, Austria;2. Magna Powertrain GmbH & Co Kg, Industriestraße 35, 8502 Lannach, Austria;1. Department of Civil, Chemical, Environmental, and Materials Engineering, Università degli studi Bologna, Via Terracini 34, 40131 Bologna, Italy;2. Faculty of Chemical Engineering, University of Technology MARA, 40450 Shah Alam, Selangor Darul Ehsan, Malaysia;3. Chemical and Materials Engineering Group, School of Engineering, University of Aberdeen, King’s College, Aberdeen AB24 3UE, Scotland, UK;4. Chemistry, School of Natural and Computing Sciences, Meston Building, University of Aberdeen, Aberdeen AB24 3UE, Scotland, UK;5. Institute of Materials Technology, Universidad Politécnica de Valencia, Camino de Vera S/N, 46022 Valencia, Spain;1. Department of Mechanical Engineering, Mississippi State University, Starkville, MS 39762, United States;2. Keystone Synergistic Enterprises, Inc., Palm City, FL 34990, United States |
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| Abstract: | For applications in space mechanisms, rolling element bearings with special polymer cages have been developed. The dependence of the properties of these bearings on deviations from roundness of their retainers is investigated and related to mechanical and thermal treatment of the cages before assembly of the bearing. An application to a production lot is shown and the observed effects are discussed. The results are then used to define a procedure that allows a control of the roundness. |
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