... system. 3 high ability of anti-friction. Waterproof Top Quality Conveyor Roller Group Parameters: Diameter (mm)7689108108Thickness of the wallδ 3δ ... ,600,950,1150Bearings No.6204620462046204Description:The roller is an important part of a belt conveyer.It accounts for 35% of ... widely used in such as mining industry,iron and steel,cement,smelting,power,chemistry,construction material,port activities,etc ...