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How to choose a hardened‑tooth helical gear reduction motor?
1. When selecting a reducer, please note the following:
Multiply the rated torque of your selected servo motor by the reduction ratio; the resulting value should, in principle, be less than the rated output torque of a comparable gearbox specified in the product catalog.
Taking into account the drive motor, its actual overload capacity, and the maximum operating torque, the required maximum operating torque shall be less than twice the rated output torque.
Once the above conditions are met, please select the smallest available gearbox. The smaller the gearbox, the lower the cost. If space is insufficient for a direct‑line connection between the motor and the gearbox, you can also opt for a right‑angle geared motor, which allows the torque to be redirected by 90 degrees.
2. The backlash of the reducer should also be taken into account,
The smaller the backlash, the higher the precision—but the greater the cost. Users should select a gearbox that meets their required precision.
3. Lateral/radial forces and average life should also be considered.
Gear reducers with high lateral and radial forces are highly reliable in installation and operation, and are less prone to failure. Typically, their average service life is significantly longer than that of servo motors.
Once the above criteria are met, you can select a suitable gearbox for your motor from the company’s product catalog, taking into account mounting dimensions, shaft diameter, input flange, and other relevant factors.
4. Finally, the weight of the reducer motor must also be taken into account.
A gearbox is designed to accommodate only motors below a specified weight; if the motor is too heavy, it may damage the gearbox’s input flange.
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