How to choose a worm gear reducer according to the motor model

The integration of motor and worm gear reducer is a common combination product.The output torque and the maximum speed of the motor reduce the speed after deceleration by the worm gear reducer and increase the output torque.It is widely used in chemical industry, printing, packaging, food, metallurgy, textile, wire and cable, rubber, electromechanical and automation.There are many kinds of motors.Worm gear reducer cast iron series and RV series.How to match the worm gear reducer according to the motor model and specification?
In order to match the worm gear reducer, it should be noted that the relevant parameters of the motor are as follows:
1. Number of poles (2-8 poles), maximum speed;
2. Three-phase or single-phase, what is the power;
3. Installation mode, vertical or horizontal;
4. The diameter of the output shaft, whether the output shaft has a flange and the specific installation dimensions;
5. What is the required output speed of the worm gear reducer.