The main feature of the worm gear reducer is the reverse self-locking function, which can have a larger reduction ratio. The input shaft and the output shaft are not on the same axis or on the same plane. However, the volume is generally large, the transmission efficiency is not high, and the accuracy is not high. The harmonic drive of the harmonic reducer uses flexible elastic deformation that can be controlled by flexible components to transmit motion and power. The volume is small and the accuracy is high, but the disadvantage is that the flexible wheel has a limited life and is not resistant to impact. The rigidity is compared with metal parts. difference. The input speed cannot be too high. Planetary reducer has the advantages of relatively compact structure, small return clearance, high accuracy, long service life, and rated output torque. But the price is slightly more expensive. The gear reducer has the characteristics of small volume and large transmission torque. The gear reducer is designed and manufactured on the basis of the modular combination system. There are many motor combinations, installation forms and structural schemes. The transmission ratio is finely graded to meet different operating conditions and achieve mechanical and electrical integration. The gear reducer has high transmission efficiency, low energy consumption and superior performance. The cycloid reducer is a transmission model that adopts the principle of cycloid needle teeth meshing with the planetary transmission. It is an ideal transmission device. It has many advantages, a wide range of uses, and can operate in positive and negative directions.