The built-in guard rails in horizontal belt conveyors is ideal for overhead conveying applications. It easily conveys boxes, cartons, cases, bags, etc., as well as loose parts. It is easily adjustable according to the floor type. Adjustable 2-1/8 in. dia. pre-lubricated ball bearings. guards included. The formed steel slider bed is 4 inchs deep with deep guards, powder painted together with splice plates.