The magnetic material of the 48V 250W front hub motor E-bike kit is generally divided into three categories: hard magnetic material, soft magnetic material and rectangular magnetic material according to its characteristics and use. Hard magnetic materials are characterized by large remanence, high coercivity and large hysteresis loop area after deep saturation magnetization. This feature ensures that the magnetic properties remain constant for a long time and are not easily lost.
The soft magnetic material in the 48V 250W front hub motor electric assist bicycle kit is characterized by a narrow and long hysteresis loop and a small return line area. It has a high magnetic permeability, is easy to magnetize and easy to demagnetize, and is often used as a core for various motors and appliances.
The magnetic material of the 48V 250W front hub motor electric assist bicycle set magnetizes in two directions, the remanence is large, close to the saturation magnetic induction and stable. Since the momentary magnetic material has two very distinct magnetization states, all classes are widely used as memory elements, switching elements, and logic elements.