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Marshall Space Flight Center High Speed Turbopump Bearing Test RigThe Marshall Space Flight Center has a unique test rig that is used to test and develop rolling element bearings used in high-speed cryogenic turbopumps. The tester is unique in that it uses liquid hydrogen as the coolant for the bearings. This test rig can simulate speeds and loads experienced in the Space Shuttle Main Engine turbopumps. With internal modifications, the tester can be used for evaluating fluid film, hydrostatic, and foil bearing designs. At the present time, the test rig is configured to run two ball bearings or a ball and roller bearing, both with a hydrostatic bearing. The rig is being used to evaluate the lifetimes of hybrid bearings with silicon nitride rolling elements and steel races.
Document ID
20000048411
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Gibson, Howard
(NASA Marshall Space Flight Center Huntsville, AL United States)
Moore, Chip
(NASA Marshall Space Flight Center Huntsville, AL United States)
Thom, Robert
(NASA Marshall Space Flight Center Huntsville, AL United States)
Date Acquired
August 19, 2013
Publication Date
May 1, 2000
Publication Information
Publication: 34th Aerospace Mechanisms Symposium
Subject Category
Research And Support Facilities (Air)
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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