Also known as: Step Pulleys, Multi Groove Pulleys, Multi V-Pulleys, Multi V-Belt Pulleys, Cone Pulleys, Stepped Cone Pulleys.
Stepped pulleys provide a low cost and efficient means of enabling a selection of speeds. Speed changes are made when the drive is stationary, the belt tension must first be released and the belt manually relocated in an alternative set of grooves.
In many arrangements the pulley centre distance remains virtually unchanged. Stepped pulleys are produced from a one piece aluminium casting and are machined with groove profiles to accept standard V-Belts. Where the diameters allow wedge belts may also be used.