Rolamite
The Rolamite bearing has very little friction
Rolamite is a technology for very low friction bearings developed by Sandia National Laboratories in the 1960s.
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
- ↑ Wilkes, Donald F. (June 24, 1969). "US Patent #3,452,175: Roller-Band Devices". Rex Research. Retrieved 2007-12-11.
- ↑ Norman, Carlisle (February 1968). "The Amazing Rolamite – It Opens the Door for 1000 Inventions". Popular Mechanics.
- Nelson, Robert A. "Rolamite". Rex Research. Retrieved 2007-12-11. External link in
|publisher=(help) - 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
- Brinkman, Erik. "ScrollerWheel Rotary Rolamite". Erik Brinkman. Retrieved 2008-07-12. External link in
|publisher=(help)
External links
- Compilation of Rolamite information and articles Including pictures and applications.
Linear
Rotary
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