The bush K 28018 is a precision-engineered bearing element designed for installation within the auxiliary rocker arm K 28015 in the Sulzer ZV40/48 engine. Its primary function is to provide a low-friction interface between the rocker arm and its supporting shaft, ensuring smooth oscillating motion under continuous mechanical load. Manufactured from high-quality bearing material with optimized lubrication properties, this bush reduces wear, absorbs vibration, and maintains accurate alignment during operation. Engineered to withstand cyclic stresses and temperature variations, it ensures long service life and stable performance. By supporting reliable movement of the auxiliary rocker mechanism, the K 28018 bush contributes to precise valve actuation and overall engine efficiency.