What are the reasons for the shaft breakage in worm gear reducers during operation?

During acceleration and deceleration, if the instantaneous torque applied to the output shaft of the worm gear reducer exceeds twice the additional output torque, and the frequency is too high, it can lead to a common issue where the worm gear reducer's output shaft breaks off.

Incorrect type selection can result in insufficient output from worm gear reducers. Some users mistakenly believe that the additional output torque of the selected reducer alone is sufficient to meet the working requirements. In fact, this is not the case. Firstly, the additional output torque of the motor to be equipped should be multiplied by the reduction ratio, and the resulting value should, in principle, be less than this value. The additional output torque of the nearby reducer provided in the product catalog should also take into account the overload capacity of the driving motor and the actual larger working torque required, which must be less than twice the additional output torque of the worm gear reducer.

　　3. In certain applications, strict adherence to this principle is mandatory. This is not only for the maintenance of worm gear reducers but, more importantly, to prevent the output shaft of the reducer from warping. If there is any doubt with the equipment, the output shaft of the reducer and its load will be locked, causing the overload of the driving motor to continue increasing output, which could lead to the worm gear reducer receiving more than double the power. Additional output torque will be applied, and the output shaft of the worm gear reducer will warp.