idle pulley
or idler pulley
noun Machinery.
a loose pulley made to press or rest on a belt in order to tighten or guide it.
Also called
idle wheel.
Origin of idle pulley
First recorded in 1885–1890
Words nearby idle pulley
idioventricular rhythm,
idk,
idle,
idle character,
idle gear,
idle pulley,
idle time,
idle wheel,
idleness,
idler,
idler shaft
British Dictionary definitions for idle pulley
idle pulley
idler pulley
noun
a freely rotating trolley used to control the tension or direction of a belt
Also called: idler