Axial Flux Motor Rotor Assemblies

Although permanent magnets are vital in axial flux motor rotor assemblies, a complete rotor assembly includes more than just magnets. It requires precise integration of various components to ensure outstanding performance. Specifically, the rotor disc, made from lightweight, durable materials like steel, aluminum, or carbon fiber-reinforced plastic, provides structural strength while minimizing weight, thus enabling high speeds with low energy loss.

For simpler applications, magnetic steel forms the rotor disc, and fan-shaped magnets adhere to its surface for basic functionality. Meanwhile, in high-speed motors, magnets fit into disc grooves or notches within steel or aluminum discs, which boosts stability. Additionally, these designs often use magnet segmentation to reduce eddy current losses, and skewed magnets help minimize cogging torque, thereby enhancing smoothness.

In more refined configurations, laminated magnets embed into rotor discs and receive a carbon fiber casing, which improves integrity. Consequently, this reduces weight significantly, ensuring higher efficiency and smoother operation in demanding applications. SDM Magnetics supplies laminated magnets to axial flux motor manufacturers and specializes in delivering fully assembled axial flux assemblies, offering comprehensive solutions for cutting-edge designs.