O-ring NBR - 70 Shore A

What is an O-ring NBR - 70 Shore A?

An O-ring NBR - 70 Shore A is a versatile and robust sealing element widely used in various industries. Made from nitrile rubber, this O-ring offers excellent resistance to oils, fuels, and many chemical substances, making it ideal for the automotive, aerospace, and machinery sectors.

The 70 Shore A hardness provides an optimal balance between flexibility and strength, allowing these NBR O-rings to withstand both low and high pressure without deforming. This property ensures a reliable seal and prevents leaks, even in demanding environments.

Additionally, the NBR 70 O-rings are durable and wear-resistant, extending the seal's lifespan and reducing maintenance costs. Its wide applicability and reliable performance make the O-ring NBR - 70 Shore A a popular choice for many applications where a dependable and long-lasting seal is essential.

Properties of a Nitrile rubber O-rings

An O-ring NBR - 70 Shore A, made from nitrile rubber, has excellent properties that make it suitable for various applications. This O-ring has a hardness of 70 Shore A, providing an optimal balance between flexibility and strength.

This allows the NBR 70 O-ring to seal effectively under both low and high pressure without deformation. An O-ring NBR - 70 Shore A is highly resistant to oils, fuels, greases, and various chemical substances, making it ideal for use in the automotive, aerospace, and industrial sectors. It has good wear resistance and durability, making it last longer and require less maintenance.

Additionally, it can withstand temperatures from -30°C to +120°C, increasing its usability in various environments. These properties make an O-ring NBR 70 a reliable choice for applications where a durable and effective seal is essential.

The Advantages of an NBR 70 O-ring

An O-ring NBR - 70 Shore A offers several advantages for various applications. This O-ring, made from nitrile rubber, is highly resistant to oils, fuels, and chemical substances, making it ideal for the automotive and industrial sectors.

The 70 Shore A hardness provides a perfect balance between flexibility and strength, meaning it can withstand both low and high pressure without deforming. This ensures a reliable seal and prevents leaks in demanding environments. Additionally, an NBR 70 O-ring has excellent wear resistance and durability, resulting in a longer lifespan and lower maintenance costs.

Its wide applicability and reliable performance make it a popular choice for applications where a durable and effective seal is crucial. Thanks to these properties, an O-ring NBR - 70 Shore A contributes to increased efficiency and reliability in various industrial processes.

Applications of an O-ring NBR - 70 Shore A

An O-ring NBR - 70 Shore A is versatile and widely used in different industries. Its excellent resistance to oils, fuels, and chemical substances makes it ideal for the automotive industry, where it is used in engines, fuel systems, and hydraulic systems.

In the industrial sector, it is perfect for machines and equipment that operate under high pressure, thanks to its balance between flexibility and strength. Additionally, an NBR O-ring in 70 Shore A is suitable for applications in aerospace, where reliable seals are crucial under extreme conditions.

An O-ring NBR - 70 Shore A is also used in the food and beverage industry due to its good resistance to fats and oils. Its durability and wear resistance ensure a longer lifespan and less maintenance, increasing the efficiency and reliability of the systems in which it is used.

The Disadvantages of a Nitrile O-ring in 70 Shore A

An O-ring NBR - 70 Shore A has some disadvantages that can be unfavorable in certain applications. Although an O-ring NBR - 70 Shore A offers a good balance between flexibility and strength, it may be less effective in very low-temperature conditions, where it can harden and lose its sealing properties.

Additionally, it is less resistant to ozone and weather influences, making it not ideal for outdoor applications without additional protection. In environments with very high temperatures above +120°C, it can degrade more quickly and lose its elasticity. Furthermore, a Nitrile O-ring in 70 Shore A may have limited resistance to certain aggressive chemicals, such as ketones and esters, limiting its usability in some chemical applications.

These disadvantages should be considered when selecting O-rings for specific industrial and technical applications. For applications where the O-rings are exposed to UV radiation, it would be better to choose EPDM O-rings. This is because these O-rings have better resistance to UV, water/moisture, and ozone.

Specifications of an O-ring NBR 70

The O-ring NBR - 70 Shore A, with material number 107019001, has various specific properties. The hardness is 70 ±5 IRHD, the tensile strength is 14.4 MPa, and the elongation at break is 389%. The density is 1.28 ±0.03 g/cm³. The compression set after 22 hours at 100°C is 11%.

At low temperatures, the material shows no cracks after 3 minutes at -40°C and has a TR10 value of -26.4°C. After aging at 100°C in air, ASTM IRM oil 901 and 903, and fuels A and B, the hardness varies between +3 and -11 points, while tensile strength, elongation at break, and volume also undergo significant changes.

This material complies with DVGW DIN EN 549 H3/B2 (-20...+80°C) standards. The data for this O-ring NBR - 70 Shore A are based on tests according to modern laboratory standards.

Custom NBR O-rings

An O-ring NBR - 70 Shore A can be custom-made to meet specific needs and applications. Thanks to the adaptability of nitrile rubber, this O-ring can be manufactured in various sizes and shapes, making it ideal for unique industrial applications.

Whether it's special seals for hydraulics, pneumatics, industrial machinery, or other applications, custom O-rings NBR - 70 Shore A offer optimal performance and reliability. By choosing custom-made O-rings, companies can ensure a perfect fit and seal, improving the efficiency and lifespan of their equipment.

Do you have specific requirements or want to request a quote for an O-ring NBR - 70 Shore A? Send your request to info@o-ring-stocks.eu, and our team will be happy to assist you in finding the perfect solution for your sealing needs.