## Namura NA-10003R Piston Rings 84.97mm - Reliability and High Performance Piston rings, often overlooked, play a crucial role in ensuring optimal engine performance, efficiency, and durability. The Namura NA-10003R is a set of piston rings with a diameter of 84.97mm, designed to provide the highest quality and reliability. ### Advanced Materials and Technology The Namura brand is known for its attention to detail and the use of the highest quality materials. The NA-10003R piston rings are a perfect example of this. Carefully selected alloys are used in their production, guaranteeing excellent wear resistance and a perfect seal. The type of cylinder sleeve, its coating, engine capacity, and piston stroke (2 or 4 stroke) - all these factors were taken into account during the design process to ensure optimal fit and performance. ### Compression Rings Made of highly ductile cast iron or stainless steel alloy, the compression rings are characterized by exceptional wear resistance and provide a tight seal of the combustion chamber. Additional coatings, such as chrome, phosphate, or nitride, increase their durability and resistance to high temperatures and pressures. ### Oil Rings The oil ring set consists of three 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. Their task is to effectively scrape off excess oil, preventing it from entering the combustion chamber. ### Why Namura? By choosing Namura NA-10003R piston rings, you are investing in quality and reliability. Precision manufacturing, advanced materials, and attention to detail are the hallmarks of this brand's products. This ensures that your engine will run smoothly and efficiently for a long time.