Usage Industrial Roller Length (mm) 0-200, 600-800, 400-600, 200-400 Bearing Heavy Duty Application Automobile Industry, Pharmaceutical / Chemical Industry Roller Materials Carbon Steel, Mild Steel Roller Diameter (meters) 60-80, 40-60, 20-40, 0-20, >80 MS Conveyor Roller offered feature both sides nylon bush supported by bearings with outer diameters of 31, 38, 50, 63 and optional silicon Sleeve on the over a roller.