Lastly, you should ask yourself the type of gear reducer assembly is best suited for the application. The insight and output shafts of your gear reducer could be coaxial, parallel-shaft or orthogonal. This depends upon your intended use.
The other reason for a gear reducer is to reduce the motor speed and we recommend that you take into account the ideal 
reduction ratio to use. Based on the rotational rate of your motor, the decrease ratio is used to determine the output rotational swiftness. This information is also indicated by manufacturers on the product pages. It is given in revolutions per minute.
It is therefore appropriate to consider about the torque first and foremost. A reducer escalates the torque of your engine and thus allows a receiving member to rotate under the impact of a new torque. Gear reducer manufacturers sometimes indicate the minimum and maximum torque (expressed in newton meters, N.m) which can be supported by each of their products. The torque density varies according to the gear reducer. For instance, planetary gearboxes have a high torque density.
A gear reducer can be used to adapt the characteristics (torque and quickness) of the insight and output axis of a mechanism. This is why you should know the torque and rotation velocity.
Before buying a gear reducer, it’s vital that you take several factors into account.
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