Large induction motor anti-friction bearing selection |
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Authors: | Perrin M.C. |
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Affiliation: | Reliance Electr. Ltd., Stratford, Ont.; |
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Abstract: | The majority of motor specifications utilize L10 life as the sole selection criterion for anti-friction bearings. At times, L 10 lives in excess of 100,000 hours are specified in an attempt to prevent recurring field problems when the failures are originating from nonL10 mechanisms. In some cases, these failures occur indirectly from overspecifying L10 life. Some general examples of this occurence are described. A successful bearing design requires the consideration of many equally important factors, which are discussed in this article |
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