Believe it or not screw conveyor screws are extremely complicated and the nomenclature and terms are too.
Category: Screws
One question we are asked a lot is why is there so much clearance (0.5in) between the screw and the trough (housing)?
A screw, or sometimes called an auger is the heart of the screw conveyor. The screw is rotated by the screw conveyor drive and pushes the conveyed material forward 1 pitch with every revolution.