The main parameters that need to be referred to when selecting a brushless DC motor are as follows:
Maximum torque: It can be obtained by adding the load torque, moment of inertia and friction. In addition, there are some additional factors that affect the maximum torque, such as the resistance of the air gap.
Square modulus torque: It can be roughly regarded as the continuous output torque required by the actual application, which is determined by many factors: maximum torque, load torque, moment of inertia, acceleration, deceleration, and running time.
Speed: This is the speed required by the application. The speed demand of the motor can be determined according to the speed trapezoidal curve of the motor. Usually, a margin of 10% should be left in the calculation.