First, what is the reducer
Deceleration machine is a power transmission mechanism, the use of the gear of the speed converter, the number of rotations of the motor is decelerated to the desired number of rotations, and to obtain the larger torque of the bodies.

Second, the role reducer
1 and spin-down at the same time improve the output torque, torque output proportion of motor output multiplied reduction ratio, but be careful not to exceed the speed reducer rated torque.
2, speed while reducing the inertia of the load, and inertia reduction of the gear ratio squared. We can look at the general motor has an inertia value.

Third, the types of reducer
The reducer general helical gear reducer (including parallel shaft helical gear reducer, worm gear reducer, bevel gear reducer, and so on), the planetary gear reducer, cycloid reducer, worm reducer, planetary friction mechanical CVT machine.

Common types of reducer
1, the main characteristics of the worm gear reducer having a reverse self-locking function, there may be a greater reduction ratio, the input shaft and the output shaft is not in the same axis, is not on the same plane. But generally larger transmission efficiency is not high, the accuracy is not high.
2, the harmonic reducer of harmonic drive is controlled elastic deformation of flexible elements to transmit motion and power, small size, high accuracy, but the drawback is the limited flexspline life, the impact of intolerance, rigid metal parts compared to the poor. Input speed is not too high.
3, planetary reducer is relatively compact structure, small backlash, high accuracy, long service life, the rated output torque can do a lot. But the price is slightly more expensive.