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Preliminary Assessment of Seals for Dust Mitigation of Mechanical Components for Lunar Surface SystemsComponent tests were conducted on spring-loaded Teflon seals to determine their performance in keeping lunar simulant out of mechanical component gearbox, motor, and bearing housings. Baseline tests were run in a dry-room without simulant for 10,000 cycles to determine wear effects of the seal against either anodized aluminum or stainless steel shafts. Repeat tests were conducted using lunar simulants JSC-1A and LHT-2M. Finally, tests were conducted with and without simulant in vacuum at ambient temperature. Preliminary results indicate minimal seal and shaft wear through 10,000 cycles, and more importantly, no simulant was observed to pass through the seal-shaft interface. Future endurance tests are planned at relevant NASA Lunar Surface System architecture shaft sizes and operating conditions.
Document ID
Document Type
Conference Paper
Delgado, Irebert R. (NASA Glenn Research Center Cleveland, OH, United States)
Handschuh, Michael J. (Ohio State Univ. Columbus, OH, United States)
Date Acquired
August 29, 2013
Publication Date
May 12, 2010
Publication Information
Publication: Proceedings of the 40th Aerospace Mechanisms Symposium
Subject Category
Space Sciences (General)
Distribution Limits
Public Use Permitted.

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IDRelationTitle20100021914Analytic PrimaryProceedings of the 40th Aerospace Mechanisms Symposium