roller chain

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roller chain

n
(Mechanical Engineering) engineering a chain for transmitting power in which each link consists of two free-moving rollers held in position by pins connected to sideplates
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014