## Piston Rings 76.95mm Namura NA-20062-4R - Reliability and Performance The Namura NA-20062-4R piston rings with a diameter of 76.95mm are a key element ensuring optimal operation, efficiency, and engine longevity. Although often overlooked, piston rings play a vital role in sealing the combustion chamber and controlling oil consumption. 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 type (2 or 4). ### Advanced Materials and Technologies The materials used in the production of Namura piston rings are one of the most important factors influencing their performance. Both compression and oil rings are made of durable alloys, providing excellent wear resistance and a tight seal. ### Compression Rings Namura compression rings are made of highly ductile cast iron or stainless steel alloy, guaranteeing excellent wear resistance and a tight seal. Additionally, depending on the model, chrome, phosphate, and nitride coatings are used to meet the requirements of specific applications. ### 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 one expander ring made of stainless steel. This design ensures effective scraping of excess oil and prevents it from entering the combustion chamber. ### Namura Precision and Quality By choosing Namura NA-20062-4R piston rings, you invest in quality and precision, which translates into longer engine life and optimal performance. Thanks to the use of advanced materials and technologies, these rings ensure reliability and efficiency in all conditions.