A rubber roller is a machine part that is composed of an inner round shaft or tube covered by an outer layer of elastomer compounds. The inner shaft is made of steel, aluminum alloys, or other strong and rigid material composites. The outer layer, on the other hand, is typically fabricated from a polymer such as polyurethane, silicone, EPDM, neoprene, and natural rubber. Rubber rollers are used in different manufacturing processes for performing operations such as: