The shaft K 28026 is a critical structural and load-bearing component that serves as the pivot axis for the auxiliary rocker arm K 28015 in the Sulzer ZV40/48 engine. Designed to support continuous oscillating motion and transmit mechanical loads, it ensures stable and precise operation of the rocker arm assembly. Manufactured from high-strength, wear-resistant materials and machined to tight tolerances, this shaft provides excellent dimensional stability and resistance to fatigue. It operates under conditions of vibration, thermal expansion, and repetitive loading, maintaining alignment and minimizing deformation. By providing a reliable rotational axis, the K 28026 shaft plays a key role in ensuring consistent valve timing and long-term durability of the valve train system.