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One, what is the reducer?
Reducer is a power transmission mechanism, the use of gear speed converter, the motor will be reduced to the number of rotation to the number of rotation, and get a large torque.

Two, the role of reducer:
1) Reducing the speed at the same time to increase the output torque, torque output ratio according to the motor output by the reduction ratio, but must pay attention to not exceed the rated torque.
2) At the same time, the inertia of the load is reduced, and the inertia of the square is reduced. You can look at the general motors have an inertia value.

Three, type of reducer:
General reducer with helical gear reducer (including parallel shaft helical gear reducer, worm gear reducer, bevel gear reducer, etc.), planetary gear reducer, reducer, worm gear, worm gear reducer, planetary friction type mechanical continuously variable transmission, etc..

Common type of reducer:
1) The main characteristics of the worm gear reducer is a reverse lock function, can have a larger reduction ratio, the input shaft and output shaft is not on the same axis, nor in the same plane. But the general volume is larger, the transmission efficiency is not high, the accuracy is not high.
2) The advantages of planetary reducer are compact structure, small return space, high precision, long service life, high rated output torque. But the price is a little expensive.

Four, performance comparison:

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