This Felss sun shaft was manufactured for a customer by using rotary swaging for the outer and inner contours in conjunction with axial forming for the splines. The lightweight solution allows for considerable savings in material and weight while maintaining a high level of precision. Thanks to the reduction in material and increase in production quality and speed, the classic mix of processes required to machine a sun shaft can be eliminated: turning the outer contour, rolling the spline on solid material, boring and turning out the inside.
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