Tech Torqs #9: What Is a Gimbal Motor and How Does It Work?

In this episode of Tech Torqs, we explain the working principles behind gimbal motors, especially when designed with a slotless architecture like Alva’s SlimTorq™ series.

A gimbal motor is used to stabilize cameras or sensors, making small, ultra-precise angular corrections to counteract unwanted motion. Unlike typical motors that operate at high speeds, gimbal motors prioritize smooth, jitter-free movement over continuous rotation.

Key characteristics:

• Slotless stator: No teeth = no cogging torque
• Low-inertia rotor: Enables rapid response to small disturbances
• Uniform torque output: Ideal for smooth control
• AC-driven magnetic field: Interacts with rotor magnets to produce precise motion

Combined with high-quality bearings and a well-balanced rotor, this architecture delivers the low-vibration, high-resolution performance required for professional gimbal systems in robotics, defense, imaging, and more.

If you have a question about motors or motion systems, share it in the comments on our LinkedIn post or send it to us directly - we might feature it in the next Tech Torqs episode.