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friction drive

noun, Automotive.
a power transmission system utilizing a set of friction gears so arranged that varying their positions relative to one another gives a wide range of speed ratios.
Origin of friction drive
1905-10 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for friction drive
  • The screen wheel is driven by a friction drive wheel powered by an electric motor or a water-driven turbine or paddle wheel.
  • No clutch or friction drive mechanism is allowed, and parts are to be kept to a minimum.

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