Hollow shaft

A hollow shaft is a shaft with a hollow diameter along its longitudinal axis. In contrast to solid shafts, it has an internal hollow structure that can fulfill different purposes depending on the application. The outer surface of the hollow shaft remains robust and resilient.

Properties and advantages of hollow shafts

Hollow shafts offer several advantages:

• Weight reduction: The hollow structure saves weight, which is particularly advantageous in applications with rotational movements and high accelerations.
• Material and resource efficiency: Less material consumption with the same strength compared to solid shafts.
• Integration of bushings: Possibility to feed cables, lines or other media through the hollow shaft, which enables a compact design.
• Damping of vibrations: Hollow shafts can contribute to the reduction of vibrations and noise through internal damping materials or structures.

Areas of application for hollow shafts

Hollow shafts are used in various areas:

• Drive technology: Used in motors, gearboxes and pumps to transmit torques.
• Medical technology: Used in imaging procedures and surgical instruments to integrate flexible adjustments and additional functions.
• Aerospace: used in rotors and propellers to reduce weight and increase aerodynamic efficiency.

Production and materials of hollow shafts

Hollow shafts can be made from various materials, including metals such as steel, aluminum or titanium, depending on the specific requirements for strength, corrosion resistance and weight.