plural of rubbish pulley

gin block

A pulley having different faces of different diameters giving various speeds according to the face the belt passes over.

plural of speed pulley

A special pulley attached to an axle of e.g. a motor to extract torque.

plural of pulley block

plural of pulley shell

The casing of a pulley block.

A shell containing one or more sheaves, the whole forming a pulley.

Without a pulley.