Rolamite
From Infogalactic: the planetary knowledge core
Rolamite is a technology for very low friction bearings developed by Sandia National Laboratories in the 1960s.
Contents
Description
Invented by Sandia engineer Donald F. Wilkes and patented by him on June 24, 1969[1] these devices use a stressed metal band and counter-rotating rollers within an enclosure to create a linear bearing device that loses very little energy to friction. One source claims it is the only basic mechanical invention of the 20th century.[2] Tests by Sandia indicated that Rolamite mechanisms demonstrated friction coefficients as low as 0.0005, an order of magnitude better than ball bearings at the time.
See also
References
Linear
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- Bishop,James E., (11/27/1973). "Remember the Rolamite? World's 27th-and Newest-'Elementary Mechanism' Still Works, but It Hasn't Revolutionized Technology" The Wall Street Journal Page 46.
Rotary
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External links
- Compilation of Rolamite information and articles Including pictures and applications.
Linear
Rotary
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