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A vacuum four-ball tribometer to evaluate liquid lubricants for space applicationsThe design and operation of a vacuum tribometer, based on the four-ball configuration, is described. This tribometer evaluates the tribological characteristics of liquid lubricants for space applications. Operating conditions include: room temperature, loads to approximately 1000N, speeds to approximately 500 rpm, and pressures of approximately 10(exp -6)Pa. Tests can also be run at atmospheric pressure with air or nitrogen. Some typical test results are included.
Document ID
19940008369
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Masuko, Masabumi (Tokyo Inst. of Tech. Japan)
Jones, William R., Jr. (NASA Lewis Research Center Cleveland, OH, United States)
Jansen, Ralph (NASA Lewis Research Center Cleveland, OH, United States)
Ebihara, Ben (NASA Lewis Research Center Cleveland, OH, United States)
Pepper, Stephen V. (NASA Lewis Research Center Cleveland, OH, United States)
Helmick, Larry S. (Cedarville Coll. OH., United States)
Date Acquired
September 6, 2013
Publication Date
July 1, 1993
Subject Category
Nonmetallic Materials
Report/Patent Number
NAS 1.15:106264
E-7991
NASA-TM-106264
Report Number: NAS 1.15:106264
Report Number: E-7991
Report Number: NASA-TM-106264
Meeting Information
Meeting: STLE Annual Meeting
Location: Pittsburgh, PA
Country: United States
Start Date: May 2, 1994
End Date: May 5, 1994
Sponsors: Society of Tribologists and Lubrication Engineers
Accession Number
94N12842
Funding Number(s)
PROJECT: RTOP 505-33-13
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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