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How To Choose The Right BLDC Motors For Different Applications?


BLDC is widely used in artificial intelligence, automobiles, medical equipment, industrial automation and other industries. Its main advantages are long life, low noise and high torque, providing a more efficient and reliable alternative to traditional motors. But with so many BLDC motors on the market, how do we choose the right one? The following are Chaoya Motor’s three references for choosing brushless motors.

Type selection

 BLDC motors come in several types, including external-rotating, internal-rotating, and flat-type. Each type has unique design features and is suitable for specific applications. For example, an inner runner is ideal for high-speed applications, while an outer runner is suitable for low-speed applications that require torque. The flat type is ideal for applications requiring less radial space. Therefore, it is crucial to understand your application requirements to select the appropriate type of BLDC motor.

Specification selection

 BLDC motor specifications include shaft diameter, speed range, rated current, and rated power. These specifications determine the motor's performance and suitability for your application. Therefore, when the power supply voltage is adjustable, a DC motor specification with a torque and speed close to the corresponding rating of the product can be selected according to actual needs, and the required speed can be obtained by changing the voltage; when the power supply voltage is fixed, if there is no suitable Brushless motors are available, suitable specifications can be selected based on torque, and the voltage and speed of the product can be appropriately adjusted.

Power selection

The motor's power rating determines the maximum power output the motor can provide. If the power selection of the brushless motor (BLDC) is too small, motor overload will occur when the load exceeds the rated output power. When the motor is overloaded, phenomena such as heat, vibration, deceleration, and abnormal noise will occur. When the motor is severely overloaded, it will burn out. If the power is too high, it will cause economic waste. Therefore, it is important to select a motor with an appropriate power rating for optimal performance.

In summary, selecting the right BLDC motor for your application requires a thorough understanding of these three key factors: type selection, size selection, and power selection. In order to achieve the best performance, high efficiency, energy saving and environmental protection, if you can't find a brushless motor suitable for your product, you can also customize it according to the performance of your product.

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