A hollow shaft is a type of shaft that is completely hollow inside, unlike a solid shaft. Hollow shafts are typically composed of a centerline and wall thickness. They offer advantages such as light weight and high load-bearing capacity, and are widely used in the automotive, machinery, aerospace, and other fields.
The hollow design of a hollow shaft aims to reduce its weight and inertial mass, thereby lowering the rotational inertia of the drive shaft, reducing energy consumption and emissions, and improving power and fuel economy.
Furthermore, the hollow design also enhances the shaft's load-bearing capacity, strength, and rigidity, allowing it to maintain stability and safety under high-speed, high-load, and continuous operation.