Polishing wear has been known to occur on piston rings, cylinderbores, valve lifters, hydraulic components, rolling-elementbearings and gear teeth. The bright, polish surfaces may look good,but polishing wear is detrimental because it is a high wearphenomenon which reduces the geometric accuracy of the components.A case history is presented of a gearbox which suffered extensivepolishing wear of the gear teeth and rolling-element bearings. Theresults of research into the basic mechanism of polishing wear, andlaboratory analyses of materials and lubricants are presented.Polishing wear is shown to be due to fine-scale abrasion. It ispromoted by a combination of a fine abrasive and a gear oil withchemically-active additives.
- Edition:
- 90
- Published:
- 10/01/1990
- Number of Pages:
- 17
- File Size:
- 1 file , 3 MB
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