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The magnet in the brushless motor is installed on the rotor and is one of the important parts of the brushless motor. So what requirements does the brushless motor have for the magnet? For example, magnetic performance requirements, shape, number of poles, etc., let me introduce to you today.
Where are the brushless motor magnets located?
Magnet performance requirements for brushless motors
The brushless motor mainly uses high-performance rare earth NdFeB magnets. Because the power of the motor is closely related to the performance of the magnet, it can be basically understood that the volume and grade of the neodymium magnet determine the maximum power of the motor.
Magnet Shape Requirements for Brushless Motors
The shapes of brushless motor magnets mainly include square magnets, tile-shaped (arc) magnets, ring magnets, and bread-shaped magnets.
Advantages of square-shaped magnets: simple processing, relatively cheap price, and a good choice for motors that pursue cost.
Advantages of arc magnets: The arc can ensure that the air gap between the magnet and the silicon steel sheet is always consistent, and it seems that the power and efficiency are better than the square magnet.
Advantages of bread-shaped magnets: According to professionals, they believe that this type of magnet is more effective than arc-shaped magnets.
Ring magnet advantages: easy installation, superior performance, high-end general use ring!
Number of magnet poles required for brushless motors
Common magnet types of brushless motor magnet;
Buy thin ring magnets, customize ultra-thin ring neodymium magnets, you can contact China's pneumatic magnet manufacturers for quotation, we have a great price advantage for small precision strong magnets, many customers in the United States, Turkey and other countries choose to cooperate with us, today's size of the outer diameter of 9.2mm, inner diameter of 5mm, thickness of 1mm, galvanized surface...
This product is a high-performance 8-pole ring magnet with radial magnetization. The material is ferrite. It belongs to a ferrite multi-pole magnetized ring. The outer diameter of the magnet is 75mm, the inner diameter is 51mm, and the height is 35mm....
The sample is M10 countersunk hole square NdFeB magnet, the length and width are 75mm, thickness is 25mm, with strong magnetic strength, specializing in heavy industry, machinery and equipment, salvage, etc., welcome to bring quantities to consult the price....
Sample display is a N52 grade ultra-thin rectangular block neodymium magnet, length size 8mm, width 1.8mm, thickness is only 0.6mm, can be affixed with adhesive backing, scribing marking, although the size is small, but still has a certain degree of magnetism, suitable for use in a number of precision instruments, meters, handicrafts, toys....
This is ring-shaped neodymium magnet with an outer diameter of 4mm, a thickness of 4mm, and a middle hole of 1.6mm. It is N48 grade, with a surface magnetic force of about 3900 Gauss. It is produced and photographed by the courage magnet manufacturer carrich. If you are interested in this product, please leave us a message or send us an email....
Buy small hole radial magnet ring, high precision radial cylindrical magnet with small hole, welcome to contact Courageous Magnet Manufacturer, we have many customized cases, such as the one you see now, belongs to the motor radial magnet, outer diameter 2.5mm, center hole 1mm, height 4.8mm, N48H grade...
This product is a rectangular pot magnet with a hole, usually a counterbore. It is used together with screws. There are one with one counterbore and two with two counterbore holes. It is suitable for fishing, lifting metal objects, kitchen and bathroom hooks, etc., rectangular Can magnet specifications are customized according to customer requirements. Please contact us for prices....
Our company is a manufacturer of permanent magnets for electric motors, we can provide you with multi-pole ring magnets made of various materials, you are now browsing this is an injection molded ferrite ring, OD 41mm, hole 35mm, height 24.5mm, radial 4-polar magnetization, surface magnetic strength of 750 gauss or so, there are molds and samples, welcome to inquire about the price....