What are fan shafts made from?

Fan shafts are typically made from materials such as steel, aluminum, or composite materials, depending on the specific application and requirements for strength, weight, and durability. Steel shafts are common for heavy-duty applications due to their high strength and resistance to wear. Aluminum shafts are lighter and often used in applications where weight reduction is crucial. Composite materials may also be used for specialized applications, offering benefits like corrosion resistance and reduced vibration.