Buy HST-IV Shaft input type harmonic reducer suppliers tell you that the harmonic reducer can cut teeth with the same modulus on the rigid spline and the flexible spline, but the number of teeth is different, that is, the number of teeth of the flexible spline is two less than that of the rigid spline individual.

Buy HST-IV Shaft input type harmonic reducer suppliers tell you that the tooth number difference of the harmonic drive represents the deformation wave number of the flex spline. The most common is the harmonic drive with wave number w-2. In the free state (no generator), the two wheels are in the concentric position, and the gap between the teeth of the rigid wheel and the flexible wheel is even. The generator installed in the flex spline makes the flex spline radially deformed into an ellipse.
At this point, Buy HST-IV Shaft input type harmonic reducer suppliers tell you that on the major axis of the ellipse, the teeth engage along the entire working height, while on the minor axis, a radial clearance is created between the tooth tips. During the rotation of the generator, the shape of the flex spline is always close to the above-mentioned shape.
Through the above introduction and analysis of Buy HST-IV Shaft input type harmonic reducer suppliers, hope it helps you.