What is the selection criteria for choosing a gear reducer?
Before buying a gear reducer, it’s important to take several factors into account.
A gear reducer is used to adapt the features (torque and speed) of the input and output axis of a mechanism. This is why you have to know the torque and rotation speed.
Hence, it is appropriate to ask yourself about the torque initial and foremost. A reducer escalates the torque of your engine and thus allows a getting member to rotate under the impact of a new torque. Gear reducer manufacturers sometimes indicate the minimal and maximum torque (expressed in newton meters, N.m) that can be supported by each of their products. 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 lessen the motor speed and we advise that you look at the ideal reduction ratio for your use. Predicated on the rotational rate of your motor, the reduction ratio is used to look for the output rotational rate. This information can be indicated by producers on the product pages. It really is provided in revolutions per minute.
Lastly, you should ask yourself what kind of gear reducer assembly is best suited for the gear reducer china application. The input and 
output shafts of your gear reducer could be coaxial, parallel-shaft or orthogonal. This depends upon your intended use.