Why does the reducer break the shaft?

Why does the reducer break the shaft?Let's find out with me:
  1. Consider the overload capacity of the drive motor and the actual maximum working torque required.
  2. The rated output torque of the motor equipped with the reducer is multiplied by the reduction ratio, and the value obtained is in principle smaller than the rated output torque of the similar reducer provided by the product sample.
  Due to the poor assembly concentricity of the output end of the reducer, other than the broken shaft of the reducer, if the output shaft of the reducer is broken.Wrong selection results in insufficient output of the reducer.