A conveyor pulley is a mechanical device used to change the direction of the belt in a conveyor system, to drive the belt, and to tension the belt.
Contents
Modern pulleys are made of rolled shells with flexible end disks and locking assemblies.
Early pulley engineering was developed by Josef Sitzwohl in Australia in 1948 and later by Helmuth Lange and Walter Schmoltzi in Germany.
Components
Pulleys are made up of several components including the shell, end disk, hub, shaft and locking assembly. The end disk and hub may be on piece. The locking assembly may also be replaced with a hub and bushing on lower tension pulleys. The shell is also referred to as the rim in some parts of the world.
The pulley shaft is typically sized following CEMA [1] B105.1 in the Americas or AS 1403 in Australia.
Design Programs
1. Pulley Maven, Software for Designing and Analyzing Conveyor Pulleys
2. Conveyor Soft, Pulley Design Program,
Historic Manufacturers
Pulley Manufactures in Germany (DDR) in 1962 included Zemag, Lauchhammer, and Köthen.