What is a speed reducer used for?

A speed reducer (gear reducer or gearbox) is a gear train between motor and the machinery that is used to transmit motor power, reduce motor rotation speed and increase output torque. Speed reducers are very common in a wide range of mechanical power transmission applications require high torque and lower speed, including conveyor, industrial mixer blender, winch lifting machine, variable speed drives and gear motors. Since the advantage of a speed reducer is to increase motor output torque with relatively low cost (compare to motor), the desired output torque is available by a smaller motor in size. It means the cost is reduced at the same time. In addition, when the reduction ratio and output torque change is required, or when the speed reducer fails, just replace the speed reducer.
〈READ MORE: Speed Reducers? How Do They Work?〉