What are the materials of the pulley

What are the materials of the pulley？

    The belt pulley is mainly made of gray cast iron, steel, aluminum alloy, or engineering plastics; gray cast iron is widely used, low cost, easy to process, and has sufficient strength. Steel plate stamping and welding pulleys can also be used; gray cast iron is generally used as the material of the pulley, which has good casting performance, while cast steel is rarely used, which has poor casting performance; pulleys are mainly used in long-distance power transmission occasions, such as automobiles, mining machinery, mechanical processing equipment, textile machinery, packaging machinery, lathes, forging machines, agricultural machinery power transmission, air compressors, reducers, reducers, generators, cotton ginning machines, etc.