... . 3 high ability of anti-friction. Waterproof Top Quality Conveyor Roller Group Parameters: Diameter (mm)7689108108Thickness of the wallδ 3δ 3 ... ,380,455,465,525,600,950,1150Bearings No.6204620462046204Description:The roller is an important part of a belt conveyer.It accounts ... the quality of it is particularly important.It is widely used in such as mining industry,iron and steel,cement,smelting ...