Please let me remind all of you--this material is copyrighted. Though partially funded by NASA, it is still a private site. Therefore, before using our materials in any form, electronic or otherwise, you need to ask permission.
There are two ways to browse the site: (1) use the search button above to find specific materials using keywords; or,
(2) go to specific headings like history, principles or careers at specific levels above and click on the button. 
Teachers may go directly to the Teachers' Guide from the For Teachers button above or site browse as in (1) and  (2).

ARMY-NASA Partnership at Lewis Research Center

Bearings

Over the past 40 years, fundamental research programs on rolling-element bearings have been directed at providing technologies that would have application in the many diversified missions of both NASA Lewis and the Army. These programs were directed at increasing bearing speed and load capabilities while improving life and reliability. Through these efforts many advancements were made in analytical capabilities, materials, and designs. 

The in-depth computer programs developed for mechanical and thermal performance prediction were verified by laboratory tests. The design and analysis methodology now also widely used by industry include SHABERTH (for ball, cylindrical, and tapered roller bearings), CYBEAN (for cylindrical bearings), SPHERBEAN (for spherical roller bearings), and PLANETSYS (for planet bearings). Included in these computer programs are the capabilities to predict roller raceway loads and stresses, bearing life, heat generation, lubricant film thickness, and steady-state and transient temperatures. Recent hardware-related research includes investigating the use of powdered metal rib rings with tapered roller bearings. An improvement in oil-off survivability was demonstrated. Current studies include developing quality assurance guidelines applicable to grease-lubricated bearings.

POC: Albert F. Kascak


Magnetic Bearing Test Stand

Send all comments to allstar@fiu.edu
© 1995-2012 ALLSTAR Network. All rights reserved worldwide.

Funded in part by

Updated: March 12, 2004