Harmonic Drive Gear Head Bearingis a new type of mechanism that realizes transmission by elastic deformation movement. It breaks through the mode of rigid component mechanism in mechanical transmission and USES a flexible component to realize mechanical transmission, thus obtaining a series of special functions that are difficult to achieve in other drives. It has been widely used. Harmonic gear transmission system consists of three basic components: Circular Spline, Flexspline and Wave Generator, and Wave Generator.The principle of harmonic gear transmission is to generate a moving deformation wave through the function of wave generator in the flexible gear component and engage with the rigid gear tooth, so as to achieve the transmission purpose Because the harmonic drive has many unique advantages, in recent decades, harmonic gear transmission technology and device has been widely used in space technology, radar, communication, energy, machine tools, instruments and meters, robots, automobile, shipbuilding, textile, metallurgy, conventional weapons, precision optical equipment, printing and packaging machinery, medical equipment and other fields.