What is the selection criteria for choosing a gear reducer?
Before buying a gear reducer, it’s vital that you take several factors into account.
A gear reducer can be used to adapt the features (torque and quickness) of the input and output axis of a mechanism. This is why you have to know the torque and rotation swiftness.
It is therefore appropriate to consider about the torque 1st and foremost. A reducer increases the torque of your motor and therefore allows a receiving member to rotate under the impact of a fresh torque. Gear reducer producers sometimes indicate the Stainless Steel Roller Chains minimum and maximum torque (expressed in newton meters, N.m) which can be supported by each of their items. The torque density varies according to the gear reducer. For instance, planetary gearboxes possess a high torque density.
The other reason for a gear reducer is to reduce the motor speed and we advise 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 producers on the product pages. It really is provided in revolutions 
per minute.
Lastly, you should consider the type of gear reducer assembly is best suited for the application. The input and output shafts of your equipment reducer could be coaxial, parallel-shaft or orthogonal. This depends on your intended use.