What is the difference between a high-speed outer rotor motor and an inner rotor motor?
- Lvbu wheel has two kinds of motor: high-speed outer rotor motor (MFO series) and high-speed inner rotor motor (MFI series). D series are outer rotor motors, and V series are inner rotor motors. The difference between the two is one has an outer rotor while the other has an inner rotor.
- Inner rotor motors place the stator on the outside with the rotor on the inside. Outer rotor motors place the stator on the inside with the rotor on the outside.
- The outer rotors generally have more magnet poles, lower speed, bigger torque, a relatively bigger size, smaller reduction gear, and a relatively cheaper price. The inner rotors generally have less magnet poles, higher speed, smaller torque, and smaller size. A larger reduction gear is required to increase the torque, and the price is higher.
- The external rotor motor is easier to repair and has better heat radiating. The repairing of the inner rotor motor is more difficult