What is the difference between inner rotor and outer rotor BLDC motor?

BLDC (Brushless DC) motors are characterized by the position of their rotor relative to the stator. the two main types of BLDC motors are in-rotor and out-rotor designs.

In an in-rotor BLDC motor, the rotor is located in the center of the motor and rotates within the stator. The stator windings are stationary while the rotor is composed of permanent magnets. The advantage of the internal rotor design is that it provides high torque and operates efficiently at high speeds. It also has a compact design, which makes it suitable for applications that require a high power-to-weight ratio.

On the other hand, the outer rotor brushless DC motor has the rotor located on the outside of the stator and the stator winding on the inside. The rotor consists of permanent magnets, which rotate around the stator. This design provides higher torque at lower speeds, making it ideal for applications that require low-speed operation, such as electric bicycles or electric scooters.
The main difference between in-rotor and out-rotor brushless DC motors is the position of the rotor relative to the stator. Inner rotor brushless DC motors provide high torque and efficient operation at high speeds, while outer rotor brushless DC motors provide high torque at low speeds.

The above is the difference between inner rotor and outer rotor BLDC motors introduced by Vshida Micromotors. For more information, please stay tuned to us!