roller chain
noun
a power chain consisting of parallel pairs of flat links joined by pins covered with rollers, and engaging with the teeth of sprockets.
Origin of roller chain
First recorded in 1895–1900
Words nearby roller chain
rolled-steel joist,
roller,
roller bandage,
roller bearing,
roller caption,
roller chain,
roller coaster,
roller derby,
roller gate,
roller hockey,
roller mill
British Dictionary definitions for roller chain
roller chain
noun
engineering
a chain for transmitting power in which each link consists of two free-moving rollers held in position by pins connected to sideplates