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DTIC ADA1044128: Quiet Bearing Surface Characterization. |
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by Defense Technical Information Center |
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Surface chemical and topographical features of bearings |
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which passed or failed Anderometer noise testing were |
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correlated with their noise characteristics. No surface |
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chemical differences existed between noisy or quiet |
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bearings. The former did, however, exhibit bands of |
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circular scratches on 'polar' ends of ball surfaces with |
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an equatorially located narrow 'frost' band consisting of |
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small (2-5 micrometers in diameter) pits of the type |
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associated with contact fatigue. Quiet bearings also |
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possessed frost bands which were always wider and |
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sometimes multiple but did not possess the bands of |
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scratches. The ability of the balls in a noisy bearing to |
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roll freely are believed to be hindered; the resulting |
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increase in contact-Hertz loads and sliding frictional |
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forces result in the generation of noise. Interim |
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solutions to the problem are also discussed. (Author) |
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Date Published: 2020-04-23 09:06:05 |
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Identifier: DTIC_ADA1044128 |
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Item Size: 6993004 |
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Language: english |
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Media Type: texts |
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# Topics |
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DTIC Archive; Jeffries,R A ; NAVAL R... |
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