How to Choose Gear Reducer?

- Oct 24, 2020-

Among all reducer series, the gear reducer has the advantages of small size, high transmission efficiency, large deceleration range, and high precision, so it is widely used in servo, stepping, DC and other transmission systems. They are mainly used to reduce the speed and the ratio of load / the motor inertia while ensure accurate transmission.


When selecting a gear reducer, multiply the rated torque of the servo motor by the reduction ratio. The value obtained should be less than the rated output torque of a similar reducer provided, and also consider the actual overload capacity and maximum working torque of the drive motor. The required maximum working torque is less than 2 times of the rated output torque.


After satisfying the above conditions, please select the smallest reducer. The cost of a smaller reducer is relatively low. If there is not enough space, linear motor reducer can be optional. You can also choose a corner reducer that can rotate the torque 90 degrees. Considering the backlash of the gear reducer,  the smaller the return gap, the higher accuracy and cost. User should choose  reducer that can meet accuracy requirements.


In addition, lateral/radial forces and average life should also be considered. The reducer with large lateral/radial force is very reliable in installation and use, and seldom cause any problems. Generally, its average life is far longer than the life of a servo motor. Base on the above indicators, you can select the gearbox suitable for your motor according to the installation size, shaft diameter and input flange from the product catalog provided by us.


Finally, the weight of the motor must also be considered. The reducer can only be matched with a motor in certain weight. Long-term operation will damage the input flange of the reducer if the motor is too heavy.