## Namura NA-50015R Piston Rings 38.98mm - Reliability and Performance Often overlooked, piston rings are a crucial component influencing engine performance, durability, and efficiency. The Namura NA-50015R piston rings with a diameter of 38.98mm guarantee quality and precision, designed to ensure optimal engine performance. The Namura brand is known for its attention to detail and the use of high-quality materials, which translates into long life and reliability of the offered products. ### Advanced Materials and Technologies The materials used in the production of Namura NA-50015R piston rings are one of the most important factors influencing their performance. The type of cylinder sleeve, sleeve coating, engine size, and piston stroke (2 or 4 stroke) – all these factors are considered when selecting the optimal material composition to meet the requirements of a specific operating environment. ### Compression Rings Namura NA-50015R compression rings are made of highly ductile cast iron or stainless steel alloy. Both materials offer excellent wear resistance and provide a gas-tight seal. Depending on the application, the rings can be coated with chrome, phosphate, or nitride, further enhancing their durability and corrosion resistance. ### Oil Rings Namura NA-50015R 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 lubrication and removal of excess oil, contributing to a longer engine life and maintaining its optimal performance. By choosing Namura NA-50015R piston rings, you are investing in quality, reliability, and the longevity of your engine.