Difference Between Inner Rotor and Outer Rotor Motor Magnets

The motor is divided into an inner rotor motor and an outer rotor motor, and the magnet is the same. What is the difference between the outer rotor motor magnet and the inner rotor motor magnet? The following Chinese magnet manufacturers have the MPCO to briefly introduce them to you.

What is the difference between the inner rotor and the outer rotor magnet?

Usually, the magnets of the outer rotor motor are generally magnetization internally, and the magnets of the inner rotor motor are magnetization externally. The main difference between the inner rotor and the outer rotor is the inner rotation or the outer rotation. For example, the motor in the remote control car played by children is inward rotation (the motor shaft is rotating) and the outer rotation can be said that the entire surface is rotating (except for the rotor bracket).

The picture below shows the ring magnet of the outer rotor motor, with radial inner magnetization multi-pole, relatively large inner diameter.

Outer rotor motor magnet

Outer rotor motor magnet

Outer rotor motor magnet

The picture below shows the magnets of the inner rotor motor, radially outer magnetized multi-pole, inner diameter of the magnet is relatively small

inner rotor motor magnet

inner rotor motor magnet

inner rotor motor magnet

Commonly used materials for motor rotor magnets include arc-shaped ferrite magnets, arc-shaped NdFeB magnets, injection molded ferrite magnets, bonded NdFeB magnets, etc. Our company can provide them, and customers are welcome to inquire and sample.

5 x 5 x 1mm Small Neodymium Square Magnet N45 Gold

10 x 3 x 2 mm Rare Earth Rectangular Neo Magnet N38H Ni

70mm x 40mm Large NdFeB Magnet Disc Round N40 Nickel

45mm x 5mm Disc Super Strong NdFeB Magnet N48 Ni

7 x 6 x 1,2 mm Small Neodymium Rectangle Magnet N48 Ni

60mm x 5mm Rare Earth Disc NdFeB Magnet N40 Ni

18 x 6mm Super Strong Circular Magnet N42 Ni

10mm x 4mm Neodymium Round Permanent Magnet N42 Nickel