Material and Weight Savings with Exceptional Surfaces

The sun shaft is the central part of a planetary transmission. The other shafts, such as the gear ring or the planetary gear, orbit around this “sun”.

Felss Sun Shaft

This Felss sun shaft is produced in the rotary swaging process, among others. This cold stabilization offers exceptional surface quality and the highest degree of process security. The lightweight design solution enables considerable material and weight savings with simultaneously high precision.

Added Value

Felss Benefits Icon Resource Efficient

Resource Efficient

The highest degree of process security.

Felss Benefits Icon Faster


Reduced cycle time of approx. 12 seconds and quick retooling possible.

Felss Benefits Icon More Precise

More Precise

Excellent surface and consistently high spline quality.

Felss Components in Use: Our Applications

Felss Crash Tube

Crash Tube

The Felss crash tubes enable the controlled conversion of crash energy through defined deformation.

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Felss Side Shaft

Side Shaft

Felss drive shafts offer intelligent wall thickness distribution depending upon the strain requirements, as well as optimized torsional strength and material stabilization.

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How Can We Help You?

We would be happy to advise you personally about our solutions and are available to answer any inquiries concerning the Felss Group.