Roller works: roller work, relying on the tape between the rollers and the friction generated by the belt roller manufacturers, roller outer cylinder rotation drive belt rollers, serve the purpose of supporting and drive. The size of the frictional resistance to rotation by the roller, belt weight, jointly determine the weight of the material. Minimize rotational resistance of high-quality leather belt idler roller, can effectively reduce the friction, thereby reducing power consumption. Roller factors: axial string momentum (directly affect the life of idler). Flexibility (lifetime effects roller life and tapes, as well as the whole driving power). Waterproof (affecting roller life). Dustproof performance (impact idler life). Axial load carrying capacity (impact roller life). Impact resistance (impact idler life). Rotational resistance (affects tape life).