Many novice friends are not familiar with magnets, so they are not very clear about one of their magnetization methods. They mistakenly believe that magnets only have axial and radial magnetization, but in fact, there are many other magnetization methods for magnets. Today, we are talking about two types of magnetization methods for motor magnetic rings: internal and external.

What does it mean? Simply put, internal charging, that is, internal charging, external charging, that is, external charging. So, if the magnet is charged internally, the strongest part of the magnetic field is on the inner R surface of the magnet, and vice versa, on the outer R surface.

The magnetic ring of an external rotor motor is generally internally charged, such as commonly used internally charged 14 poles, internally charged 10 poles, internally charged 8 poles, and so on.

Magnet radial internal charging and radial external charging come from this way, so it is best to be clear when inquiring with the magnet manufacturer to avoid unnecessary trouble. These two magnetization methods are usually used more in the field of motors.