The roller group is the core supporting component of a belt conveyor, composed of several rollers, brackets, fasteners, etc. It is the "load-bearing skeleton" that ensures the stable operation of the conveyor. According to the working conditions of the conveyor, the roller group can be divided into various types such as groove roller group, parallel roller group, self-aligning roller group, buffer roller group, etc. The groove roller group is arranged in a V-shape, which can prevent material scattering and is suitable for bulk material conveying scenarios; Parallel roller sets are often used for conveyor belt return support; The self-aligning roller set can automatically correct the deviation problem of the conveyor belt, ensuring the safe operation of the equipment; The buffer roller group is made of elastic material, which can alleviate the impact of material falling and protect the conveyor belt and roller body. The main materials of the roller group include carbon steel, stainless steel, engineering plastics, etc. The surface can be treated with anti-corrosion and wear-resistant methods such as galvanizing, spraying, and coating, suitable for complex working conditions in multiple industries such as mining, metallurgy, coal, grain, and building materials. High quality roller sets have the advantages of low rotational resistance, strong load-bearing capacity, and long service life, which can effectively reduce the energy consumption of conveyor operation and reduce maintenance frequency. They are key components for improving the overall efficiency of the conveyor system.