What is the use of motor reducer

Motor reducer generally refers to a reduction motor, which is used to reduce the speed and increase the torque.
1) Reduce speed and increase output torque at the same time. The torque output ratio is the motor output multiplied by the reduction ratio, but it should be noted that it cannot exceed the rated torque of the reducer.

2) Reduce speed and reduce the inertia of the load at the same time. The reduction in inertia is the square of the reduction ratio.
There are other reasons for using reduction motors: to improve the running accuracy of each step of the motor, use a reducer; to avoid the resonance zone of the stepper motor at low speed to increase the running speed of the stepper motor through a reducer; to match the high rotational inertia of the load, use a reducer to increase the rotational inertia of the motor, etc.
A reduction motor refers to an integrated body of a reducer and a motor (motor). This integrated body is usually also called a gear motor or gear motor. It is usually integrated and assembled by a professional reducer manufacturer and supplied as a set with the motor.