What are the advantages and disadvantages of harmonic reducer and RV reducer? (37 years of experience in angular contact bearing manufacturers) -

The two commonly used in robots are harmonic reducer and RV reducer. As a professional R&D manufacturer of robot bearings, Sanli has specialized in producing angular contact bearings for harmonic reducers and RV reducer angular contact bearings for 37 years. Summarize the advantages and disadvantages of harmonic reducer and RV reducer for everyone. The harmonic reducer has a compact structure and is suitable for miniaturization, low and medium load applications. The RV reducer has good rigidity, strong impact resistance, stable transmission system, high precision, and is suitable for medium and heavy load applications, but the RV reducer must transmit a very large torque, bear a very large load impact, and ensure the expected performance. Therefore, the shape design uses a relatively complicated over-precision positioning structure, and the processing technology and cost management are difficult. The internal structure of the RV reducer does not have elastic deformation bearing components, so it can withstand a certain torque. The angular contact bearing of the RV reducer is the weak point. It is easier to increase the limit value of the bearing capacity when bearing the force, resulting in abnormal damage or breakage of the rolling bearing. This situation is more prominent during high-speed rotation, so the rated torque of the RV reducer decreases significantly with the input speed ratio. Only when the torque is accurate can the rotation be stable! (http://)

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