Speed reducers are mechanical products that help drive systems maintain optimal swiftness and torque for the application form. Also known as gearboxes and equipment drives, they lower the velocity of rotation of the input shaft by a specific ratio and boost the power transmitted to the result shaft by the same ratio. Ratio multipliers boost the speed decrease and torque supplied by a acceleration reducer by a specific ratio and are ideal for parallel setups. Mounting bases, torque hands, and flange couplings are add-ons used with swiftness reducers. They are often used in applications where the speed reducer will not be directly mounted on the drive mechanism.
Many gearbox 
designs allow for the engine to be directly mounted to the reducer. These designs incorporate either extremely specific flanges to allow the electric motor to be directly connected to the reducer or additional adapters with integral couplings. This eliminates the necessity for individual mounting of the engine, but is generally only practical with smaller sized motors.
Integrating Speed Reducers
After selection, the next issue is how the gearbox will be built-into the machine. Always check how the gearbox will become mounted and how it will be connected to the driver and driven load because it can vary from machine to machine.
torque
speed
horsepower
reducer efficiency
service factor
mounting position
connection variable
life required
In some applications the amount of backlash, transmission error, torsional rigidity, and instant of inertia are also important. The amount of torque needed is perhaps the most crucial criteria, as this translates to the amount of work the speed reducer must perform.
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