Isotropic superfinishing was applied to the third stage spurbull gear and mating pinions along with the second stage bevelgears of a Sikorsky S-76C+ main gearbox. The gearbox completed thestandard Acceptance Test Procedure (ATP) and a 200-hour endurancetest. During these tests noise, vibration, and operatingtemperatures were shown to be significantly reduced due to lowerfriction. A description of the tests, performance data and ageneral description of the process is presented.
- Edition:
- 06
- Published:
- 10/01/2006
- Number of Pages:
- 14
- File Size:
- 1 file , 820 KB
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