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Performance of gas-lubricated cruciform-mounted tilting-pad journal bearings and a damped flexibly mounted spiral-groove thrust bearingA test program was conducted to determine the performance characteristics of gas-lubricated cruciform-mounted tilting-pad journal bearings and a damped spiral-groove thrust bearing designed for the Brayton cycle rotating unit (BRU). Hydrostatic, hybrid (simultaneously hydrostatic and hydrodynamic), and hydrodynamic tests were conducted in argon gas at ambient pressure and temperature ranges representative of operation to the 10.5 kWe BRU power-generating level. Performance of the gas lubricated bearings is presented including hydrostatic gas flow rates, bearing clearances, bearing temperatures, and transient performance.
Document ID
19740010016
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Ream, L. W.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 3, 2013
Publication Date
March 1, 1974
Subject Category
Machine Elements And Processes
Report/Patent Number
NASA-TM-X-2999
E-7675
Accession Number
74N18129
Funding Number(s)
PROJECT: RTOP 502-25
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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