Roller works: roller drive roller tube body, bearing and bearing outer ring by friction between the belt and rollers, seals, rotary motion polyethylene polymer roller manufacturer, and with the conveyor belt which together implement transport logistics. Roller factors: roller radial runout (the indicators directly affect the stability of the material transport). Roller main categories: Parallel roller common type roller, comb-type roller, forward-Roller, steel, rubber type roller, screw-type roller and the like. Spherical roller with universal type, friction reversible roller, strong type roller, tapered roller, screw-type roller, combination roller and the like. Buffer roller spring plate roller, roller cushion ring type, strong buffer type roller, roller adjustable elastic type, hanging type roller and the like. Polyethylene polymer roller supplier