The drive pulley is the part of the conveyor to transfer power. The drive pulley can be divided as per the production materials, into steel coil welding, cast steel, and cast iron. In terms of the structure type, there are assembled spoke plate, spoke type, integral spoke plate. In addition, the surface of the drum has smooth, coated glue, casting glue and other types, among which the plate welding assembly spoke plate casting glue drum is the most widely used. When the power is small, the bandwidth is small and the environment is dry. The smooth roller with bare leakage can be used. The friction coefficient of the rubber roller is large while the skid resistance and the drainage is good, but it has directionality. The rubber roller is used for the conveyor with the two-way operation. The bend pulley, also known as the guide drum, is a common key part of the belt conveyor, mainly used to change the running direction of the conveyor belt or press the conveyor belt to increase the Angle of the drive pulley. The reversing roller has the characteristics of compact structure, lightweight, less occupation, reliable performance, beautiful appearance, safe and convenient to use, and it can still work normally under heavy dust, wet and muddy conditions. The redirection roller is below the belt movement, such as the belt transporting direction to the left, then the redirection roller on the right side of the belt conveyor, the main components forbearing and steel cylinder. Transmission roller belt conveyor is driving wheel, direction-changing roll Jane and drive roller is no different in form, to be made up of a spindle roller bearing and the bearing chamber transmission drum main drive and driven two kinds.