## Namura NA-50004-2R Piston Rings 92.47mm - Reliability and Performance Namura NA-50004-2R 92.47mm piston rings are a key component for optimal engine performance, efficiency, and durability. Often overlooked, piston rings play a vital role in ensuring combustion chamber sealing and proper lubrication. Namura, renowned for its high-quality motorcycle and scooter parts, offers piston rings designed for specific applications. ### Advanced Materials and Technologies Namura utilizes advanced materials and technologies in the production of its piston rings. The type of cylinder sleeve, sleeve coating, engine size, and piston stroke (2 or 4 stroke) – all these factors influence the selection of the appropriate material composition that will ensure optimal performance under specific conditions. ### Compression Rings Namura compression rings are made of highly ductile cast iron or stainless steel alloy. Both materials offer excellent wear resistance and provide a tight seal. Additionally, depending on the model, the rings may be coated with chrome, phosphate, or nitride, further enhancing their durability and corrosion resistance. ### Oil Rings Namura oil rings consist of three separate components: two scraper rails made of highly ductile cast iron or stainless steel alloy, coated with chrome, nitride, or phosphate, and a single expander ring made of stainless steel. This design ensures efficient removal of excess oil, preventing it from entering the combustion chamber and maintaining optimal lubrication. ### Precision and Excellence Namura NA-50004-2R 92.47mm piston rings guarantee precision and excellent workmanship. By choosing Namura, you invest in the reliability and longevity of your engine.