The harmonic reducer is mainly composed of three basic parts: harmonic generator, flexible wheel and rigid wheel. In
addition,there are rigid bearings (cross roller bearings) and flexible bearings (thin-wall deep groove ball bearings).
Flexible bearings with inner hole and elliptical CAM outer ring, outer ring elastic deformation with a ball, and round and soft with the opening of the inner, outer ring by ball implementation of elastic deformation, and soft round opening diameter, soft round opening of peripheral engraved with gear, and just wheel gear meshing, just wheel teeth more than soft round, soft and just round mesh in long axis, in the short axis, soft wheel fixed on the output side, at the bottom of the rigid bearing installed on the output of the speed reducer and the outside connection.
Harmonic reducer is usually used in the robot, machine tool, aerospace and other industries. The accuracy, rigidity and bearing capacity of the harmonic reducer is very high requirements, so the internal parts of the harmonic reducer processing precision and installation precision requirements are very high, the same bearing requirements are also very high; The most important for rigid bearings is the rigidity, reliability and rotation accuracy of the bearings, the rigid bearings in the factory before the bearing will be adjusted to a certain amount of prepressure, in order to ensure enough rigidity of the bearings;The most important factor for flexible bearings is the maximum radial deformation of the bearings. The bearings of harmonic reducer include two types of rigid bearings and flexible bearings. The rigid bearings include four series, CSG (CSF) series, CSD series, SHG (SHF) series and SHD series.The flexible bearing is named HYR.