Generally the belt is supported by idler rollers, in rear cases by solid wood or sheet steal runway or a combination support
comprising
sections of a runway with idler rollers.
According to their location on the conveyor, idlers are classified as upper (supporting the
loaded strand on the belt) and lower (supporting the idle return strand of the belt). In our project we used steal sheet inst
ead of idlers.
These are used mainly in
conveyors handling bulk loads, less frequently unit loads etc.