The ball bearing, code 178920, is a fundamental mechanical component designed to support rotating shafts and reduce friction within the MAN L21/31 engine. By enabling smooth rotational motion and minimizing energy losses, it enhances mechanical efficiency and operational stability across various engine subsystems. Manufactured with high precision from hardened, wear-resistant materials, the bearing is capable of withstanding significant radial and axial loads, as well as continuous vibration and temperature fluctuations. Its reliable performance ensures long service life, reduces maintenance needs, and plays a vital role in maintaining the smooth, efficient, and dependable operation of the engine.
The thrust piece, code 300100, is a precision component designed to absorb axial forces and maintain proper alignment of rotating or moving parts within the MAN L21/31 engine. By distributing loads evenly and reducing localized stress, it helps prevent excessive wear and ensures stable operation under varying mechanical and thermal conditions. Engineered from high-strength, wear-resistant materials and manufactured to tight tolerances, the thrust piece delivers consistent performance over extended service intervals. Its critical role in controlling axial movement supports the protection of key assemblies, preserves dimensional accuracy, and contributes to the overall durability and efficiency of the engine.
The mounting tool for valves, code 212840, is a specialized service device designed to ensure safe, accurate, and efficient installation and removal of valve components in the MAN L21/31 engine. Engineered to provide controlled force application and precise alignment, it minimizes the risk of damage to valve seats, springs, and associated parts during maintenance operations. Its ergonomic design and robust construction enable technicians to perform work quickly and reliably, even under demanding workshop or on-site conditions. Manufactured from high-strength materials and built to meet strict service requirements, this tool enhances maintenance quality, reduces downtime, and contributes to the long-term reliability and performance of the engine.
The auxiliary rocker arm K 28015 is a complete assembly designed to support and complement the main valve actuation system in the Sulzer ZV40/48 engine. It assists in distributing motion and forces within the valve train, ensuring balanced operation and precise control of valve movement under varying engine loads. Engineered for continuous operation under mechanical stress, vibration, and thermal influence, this component is manufactured from robust, wear-resistant materials and assembled to strict tolerances. Its integrated design ensures reliable performance and simplifies installation and maintenance. By supporting synchronized valve actuation and reducing localized stress, the K 28015 auxiliary rocker arm enhances the overall efficiency, durability, and operational stability of the engine.
The main rocker arm K 28006 is a fundamental component of the valve actuation mechanism in the Sulzer ZV40/48 engine, responsible for transmitting motion from the camshaft to the engine valves with precision and reliability. Designed to operate under high cyclic loads, dynamic stresses, and continuous mechanical movement, it ensures accurate valve timing and efficient gas exchange within the combustion process. Manufactured from high-strength materials and precisely machined for optimal geometry, the rocker arm provides excellent durability, wear resistance, and dimensional stability. By enabling consistent valve operation and minimizing mechanical losses, the K 28006 main rocker arm plays a key role in maintaining engine performance, fuel efficiency, and long-term reliability.
The joint ring K 27762 is a precision sealing component designed for use with the transition nipple K 27755 in the Sulzer ZV40/48 engine, ensuring secure and leak-free connections within critical fluid or pressure systems. Positioned between mating surfaces, it compensates for minor surface irregularities and maintains uniform contact pressure under varying operating conditions. Engineered to withstand exposure to pressure fluctuations, temperature changes, and mechanical vibration, this joint ring delivers consistent sealing performance over extended service intervals. Manufactured from high-quality, application-specific materials, it offers excellent resistance to wear and chemical degradation. By preserving system integrity and preventing fluid losses, the K 27762 joint ring contributes to operational efficiency, reliability, and reduced maintenance requirements.