To determine a small motor model, the following work needs to be done:

1. Determine the running speed of the machine, and calculate the reduction ratio of the small motor according to the speed;

2. Calculate the torque of the load, select the output of the small motor according to the torque (refer to the "output torque table" provided by small motor manufacturers such as Hong Kong fenglisheng and Dongguan forsheng), and determine the model of the small motor;

3. Determine the additional functions of small motor, such as power off brake, power on brake, combined speed regulation, separate speed regulation, reverse operation, etc. some additional functions can only be provided by specific factories.