What is the selection criteria for choosing a gear reducer?
Before buying a gear reducer, it’s vital that you take several factors into consideration.
A gear reducer is utilized to adapt the features (torque and velocity) of the insight and output axis of a system. This is why you have to know the torque and rotation rate.
It is therefore appropriate to ask yourself about the torque initial and foremost. A reducer increases the torque of your motor and therefore allows a receiving member to rotate beneath the impact of a fresh torque. Gear reducer producers sometimes indicate the minimal and maximum torque (expressed in newton meters, N.m) that can be supported by each of their items. The torque density varies based on the gear reducer. For instance, planetary 
gearboxes have a higher torque density.
The other purpose of a gear reducer is to lessen the motor speed and we recommend that you look at the ideal reduction ratio to use. Based on the rotational quickness of your engine, the reduction ratio is used to determine the output rotational rate. This information is also indicated by manufacturers on their product pages. It is provided in revolutions per minute.
Lastly, you should consider what kind of gear reducer assembly is most appropriate for your application. The input and result shafts of your gear reducer could be coaxial, gear reducer china parallel-shaft or orthogonal. This depends upon your intended use.