## Namura NA-50014-4R Piston Rings 47.98mm - Reliability and Performance Namura NA-50014-4R piston rings with a diameter of 47.98mm are a key component for optimal engine performance, efficiency, and longevity. Often overlooked, these rings play a fundamental role in proper piston operation. Namura, known for its high-quality motorcycle and scooter parts, designs piston rings for specific applications, taking into account the type of cylinder sleeve, its coating, engine size, and stroke (2 or 4). All this to ensure a perfect fit and optimal operation under given conditions. ### Key Features of Namura Piston Rings: * **Precise Fit:** The 47.98mm diameter guarantees a perfect fit to the piston, minimizing compression losses and ensuring maximum engine performance. * **High-Quality Materials:** Made of durable cast iron or stainless steel alloy, Namura rings are characterized by excellent wear resistance and provide a tight seal. * **Advanced Coatings:** Additional chrome, phosphate, and nitride coatings increase resistance to corrosion and wear, extending the life of the rings. * **Optimized Design:** The specially designed construction of the oil rings, consisting of two scraper rails and one expansion ring, ensures efficient lubrication and minimizes oil consumption. ### Compression Rings: Made of highly ductile cast iron or stainless steel alloy, the compression rings provide excellent sealing and wear resistance. Additional chrome, phosphate, or nitride coatings enhance their durability and effectiveness. ### Oil Rings: The oil ring set consists of two scraper rails made of highly ductile cast iron or stainless steel, coated with chrome, nitride, or phosphate, and one stainless steel expansion ring. This design ensures efficient oil drainage and minimizes oil consumption. By choosing Namura NA-50014-4R piston rings, you are investing in the reliability and performance of your engine.