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Performance of Small Bore 60NiTi Hybrid Ball Bearings: Preliminary Life Test ResultsSmall bore (R8 size) hybrid ball bearings made with 60NiTi races and silicon nitride balls are under development for highly corrosive aerospace applications that are also exposed to heavy static (shock) loads. The target application is the vacuum pump used inside the wastewater recycling system on the International Space Station. To verify bearing longevity, life tests are run at 2000rpm for time periods up to 5000 hours. Accelerometers with data tracking are used to monitor operation and the bearings are disassembled and inspected at intervals to assess wear. Preliminary tests show that bearings made from 60NiTi are feasible for this aerospace and potentially other industrial applications that must endure similar operating environments.
Document ID
20170004098
Acquisition Source
Glenn Research Center
Document Type
Presentation
Authors
Dellacorte, Christopher
(NASA Glenn Research Center Cleveland, OH United States)
Howard, S. Adam
(NASA Glenn Research Center Cleveland, OH United States)
Date Acquired
May 1, 2017
Publication Date
November 13, 2016
Subject Category
Metals And Metallic Materials
Mechanical Engineering
Report/Patent Number
GRC-E-DAA-TN34975
Meeting Information
Meeting: 2016 STLE Tribology Frontiers Conference
Location: Chicago, IL
Country: United States
Start Date: November 13, 2016
End Date: November 15, 2016
Sponsors: Society of Tribologists and Lubrication Engineers
Funding Number(s)
WBS: WBS 109492.02.03.02.01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Keywords
materials
bearings
metals
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