Belon Gear | Types of Gears for Drones and Their Functions

As drone technology rapidly evolves, so does the demand for high performance, lightweight, and precise mechanical components. Gears play a vital role in drone systems，enhancing power transmission, optimizing motor performance, and improving flight stability.
At Belon Gear, we specialize in designing and manufacturing custom gear solutions for modern UAVs (unmanned aerial vehicles), from compact consumer drones to heavy lift industrial models.

Here are the key types of gears used in drones and their core functions:

1. Spur Gears

Spur gears are the most common type, known for their simple design and efficiency in transmitting motion between parallel shafts. In drones, they are often used in motor to propeller systems, gimbal mechanisms, and payload deployment units. Belon offers precision cut spur gears in lightweight materials like aluminum and engineering plastics to reduce overall drone weight.

2. Bevel Gears

Bevel gears are used when motion needs to be transmitted at an angle typically 90 degrees. In drones, bevel gears are ideal for changing direction of rotation in compact spaces, such as in folding arm mechanisms or specialized camera mounts

3. Planetary Gear Sets

Planetary (epicyclic) gear systems provide high torque in a compact size, making them perfect for brushless motor gearboxes in heavy duty drones or VTOL aircraft. Belon Gear supplies micro planetary gear systems with high precision and low backlash, tailored for drone propulsion.

4. Worm Gears

Although less common, worm gears are sometimes used in self locking applications, such as braking mechanisms or slow speed camera controls. Their high gear reduction ratio can be useful for controlled motion.

At Belon Gear, we focus on lightweight design, minimal backlash, and precise tolerances all essential for stable drone operation and energy efficiency. Whether you’re building a consumer quadcopter or a large scale delivery drone, our gear experts can help you select or custom develop the right gearing solution.