The considerations when choosing speed reducers include:
Torque of the Motor
A reducer boosts your motor's torque, allowing a receiving part to rotate under the influence of a new torque. Manufacturers of gear reducers list the minimum and maximum torque (in newton meters, N.m) that each of their products can handle. Depending on the gear reducer, the torque density changes. Planetary gearboxes, for example, have a high torque density.
Geometry of the Shaft Housing
The geometry of the housing, input, and output shafts is one of the most important factors to consider when choosing a gear reducer. The type of gear reducer required and how it will interface with the equipment, the motor, and the load will be determined by geometrical considerations.
Operating Hours of the Speed Reducer
Operational variables such as the needed number of operating hours and if the equipment will be exposed to harsh chemical, thermal, shock, or vibration conditions should also be addressed. For example, a gear reducer in an aggregate conveyor may be subjected to severe shock, vibration, and temperature stresses while operating for lengthy periods of time in a dirty environment.
Speed of Motor
Another function of a gear reducer is to reduce motor speed, and we recommend that you consider the best reduction ratio for your application. The reduction ratio is utilized to calculate the output rotational speed based on the rotational speed of your motor. It's measured in RPM (revolutions per minute).
Selection of Speed Reducer
Because there are so many types of gear reducers created to satisfy the requirements of a wide variety of functions and parameters, an expert, engineer, or designer who is experienced in gear reducers is required at this stage of the selection process. The input and output shaft configurations are the first factors to consider when selecting a gear reducer.
Performance of the Motor
Motors are subjected to shock or cyclic stresses in some applications. When selecting a gear reducer, it is critical to consider these factors in order for the gear reducer to cope with the higher torque.
Backlash in the Gearbox
Backlash is the amount of mistake or play in the meshing of the gears in the gearbox that causes mechanical shock when the transmission is started or stopped. To minimize premature mechanical failure in applications where the motor is driven sporadically, it may be advantageous to use a gearbox with minimal backlash, such as a planetary gearbox.
Mounting and Connection
If space and profile constraints exist in the gearbox mounting location, the gearbox's size, shape, and arrangement are critical in choosing which alternative is best. Different types of gears have different size efficiencies, with planetary gear trains being the smallest and spur gears requiring the greatest space. It may also be viable to use a gearbox that serves as the motor's mounting in smaller applications. On the other hand, larger applications usually necessitate mounting them individually on a chassis.
