Conveyor idler is an important component of the buffer roller, buffer roller many kinds of suppliers, large quantities. It accounts for a total cost of 35% of the belt conveyor quality buffer roller, resulting in a more than 70% of the resistance of the buffer roller manufacturer, so the quality of the roller is particularly important. Role is to support the roller conveyor and material weight. Roller must be flexible and reliable operation. Roller selection: as a main component of belt conveyor - roller, conveyor belts are distributed in the following, mainly used to hold the belt and load bearing. Buffer, detuning, cleaning the belt is its primary function. So it's good or bad quality and correct selection of the whole life of the belt conveyor, safe and stable operation and energy consumption plays an important role.