## Namura NA-10001-1R Piston Rings 86.22mm - Reliability and Performance Namura NA-10001-1R piston rings with a diameter of 86.22mm are a key element ensuring optimal engine operation, efficiency, and longevity. Often overlooked, these rings play a fundamental role in sealing the combustion chamber and controlling oil consumption. Namura, known for its precision and quality, designs piston rings dedicated to specific applications, taking into account the type of cylinder liner, its coating, engine capacity, and stroke type (2 or 4). ### Advanced Materials and Technologies The materials used are one of the most important factors influencing the performance of piston rings. Namura uses highly ductile cast iron or stainless steel alloy, both characterized by excellent wear resistance and providing a tight seal. Additionally, depending on the model, chrome, phosphate, and nitride coatings are used to meet the requirements of a specific engine. ### Compression Rings Compression rings, made of highly ductile cast iron or stainless steel alloy, ensure a tight seal of the combustion chamber. Chrome, phosphate, or nitride coatings further enhance their durability and wear resistance. ### Oil Control Rings Oil control rings consist of three elements: 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 precise oil metering, minimizing its consumption and preventing it from entering the combustion chamber. By choosing Namura NA-10001-1R piston rings, you are investing in the reliability and performance of your engine.