The selection of roller is generally considered from the following aspects:
Length: Goods of different width should select suitable length of roller, normally should adopts m 50mm more than the width of goods. For tapered roller of curve conveyor, the conveying width and taper is depended on the goods dimensions and turning radius.
Roller tube wall thickness and shaft diameter: according to the weight of the conveying goods equally distributed to the loading roller, calculate the required load of each roller, so as to determine the roller tube wall thickness and shaft diameter.
Material and surface treatment: according to the different conveying environment, determine the material and treatment of the roller (galvanized carbon steel, stainless steel, black oxide finish or rubber lagging).
Mounting method: mounting method decides the complex of roller disassembly, different mounting method also influence the load capacity or roller. Generally there are mounting methods of spring loaded, female thread, flat milling and shaft pin.