NASA NTRS · 19740012951
Hollow rolling element bearings
Abstract
A low mass rolling element with a lightweight core and hollow center was developed for use in bearings. The core is plated so as to provide a hard surface and increase the life and reliability of the high speed ball bearings.
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Parker, R. J.. 1973-04-09. Hollow rolling element bearings. https://ntrs.nasa.gov/citations/19740012951
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