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Performance of PTFE-lined composite journal bearingsPlain cylindrical journal bearings consisting of aramid fiber reinforced epoxy outer shells and glass fiber reinforced PTFE lubricating liners were evaluated. All materials in these bearings are electrically nonconductive; thus eliminating the problem of galvanic corrosion sometimes encountered with metal bearings installed in dissimilar metal mountings. Friction and wear characteristics were determined for loads, temperatures, and oscillating conditions that are typical of current airframe bearing applications. Friction and wear characteristics were found to be compatible with most airframe bearing requirements from -23 C to 121 C. Contamination with MIL H-5606 hydraulic fluid increased wear of the PTFE liners at 121 C, but did not affect the structural integrity of the aramid/epoxy composite.
Document ID
19820009389
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Sliney, H. E. (NASA Lewis Research Center Cleveland, OH, United States)
Williams, F. J. (North American Aviation Inc., Los Angeles, United States)
Date Acquired
September 4, 2013
Publication Date
January 1, 1982
Subject Category
Chemistry And Materials (General)
Report/Patent Number
E-1110
NASA-TM-82779
Meeting Information
Meeting: Ann. Meeting of the Am. Soc. of Lubrication Engr.,
Location: Cincinnati, OH
Country: United States
Start Date: May 10, 1982
End Date: May 13, 1982
Accession Number
82N17263
Funding Number(s)
PROJECT: RTOP 505-32-42
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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