Felss Camshaft

New strategies for processing a hollow camshaft

The camshaft is used to open the intake and exhaust valves in accordance with the control times specified in the design. In this process, the shaft rotates about its own axis – the cams that are mounted on it repeatedly convert this rotary movement into a short longitudinal movement.


Use of cold forming for optimum results

This Felss camshaft was jointly developed together with a customer and this was the first time that active cylinder management had ever been implemented in a large-series four-cylinder engine. As a result, when less power is required, the vehicle’s active cylinder management automatically switches to a mode in which only two cylinders operate. This automatically increases efficiency and reduces fuel consumption, with the car achieving petrol savings of 15% on average.


Special features of the implemented solution

Higher degrees of deformation without having to use heat-based processes
Fuel savings during application thanks to the possibility of individual cylinder deactivation
More precise spline and material hardening thanks to cold work hardening
Suitable for series production due to the use of proven processes.

Benefits of the Felss solution at a glance

Felss Benefits Icon Stronger


Ten times the durability compared to conventionally produced components.

Felss Benefits Icon Resource Efficient

Resource efficient

15% less fuel consumption.

Felss Benefits Icon More Precise

More precise

Maximum precision: manufacturing tolerance of 1/10 mm.

Felss Benefits Icon Lighter


Weight of the shaft reduced from 5.2 to 3.3 kg.

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