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Flexure Bearing Reduces Startup FrictionDesign concept for ball bearing incorporates small pieces of shim stock, wire spokes like those in bicycle wheels, or other flexing elements to reduce both stiction and friction slope. In flexure bearing, flexing elements placed between outer race of ball bearing and outer ring. Elements flex when ball bearings encounter small frictional-torque "bumps" or even larger ones when bearing balls encounter buildups of grease on inner or outer race. Flexure of elements reduce high friction slopes of "bumps", helping to keep torque between outer ring and inner race low and more nearly constant. Concept intended for bearings in gimbals on laser and/or antenna mirrors.
Document ID
19910000596
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Clingman, W. Dean
(Boeing Aerospace and Electronics Co.)
Date Acquired
August 14, 2013
Publication Date
November 1, 1991
Publication Information
Publication: NASA Tech Briefs
Volume: 15
Issue: 11
ISSN: 0145-319X
Subject Category
Mechanics
Report/Patent Number
LAR-14348
Accession Number
91B10596
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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