O-Ring 116x3.5 NBR

Applications
Material Properties and Advantages
Technical Specifications

Main description

The O-Ring 116x3.5 NBR 70 Shore is a high-quality industrial sealing ring designed for reliable static sealing in demanding technical and industrial applications. Manufactured from NBR (nitrile butadiene rubber) with a hardness of 70 Shore A, this O-Ring provides excellent resistance to mineral oils, greases, fuels, and common hydraulic fluids. Its inner diameter of 116 mm and cross-section of 3.5 mm make it a frequently used size in machinery, industrial equipment, and technical installations.

This rubber seal is widely applied as a static seal in cylindrical and flat connections where consistent tightness and long service life are essential. NBR 70 Shore material ensures a balanced combination of elasticity, mechanical strength, and dimensional stability, allowing the O-Ring to maintain sealing performance even during long-term operation. The material is also resistant to aging, compression set, and moderate temperature fluctuations, which is critical in continuous industrial use.

The O-Ring 116x3.5 NBR is commonly used in hydraulic and pneumatic applications, including pumps, valves, actuators, housings, and industrial assemblies. It is suitable for maintenance, repair, and original equipment manufacturing, where standardized technical sealing components are required. Thanks to its proven material properties and precise dimensions, this O-Ring helps reduce leakage risk, improve system reliability, and minimize downtime.

Engineers and procurement specialists value this O-Ring for its predictable performance, compatibility with a wide range of media, and ease of installation. It is an optimal solution for industrial sealing systems that require durability, chemical resistance, and stable operation under pressure.

FAQ

What material is the O-Ring 116x3.5 made of?
It is made of NBR (nitrile butadiene rubber) with a hardness of 70 Shore A.

Is this O-Ring suitable for oil and grease applications?
Yes, NBR offers excellent resistance to mineral oils, greases, and fuels.

What type of sealing is this O-Ring intended for?
It is designed primarily for static sealing applications.

What is the typical operating temperature range?
Standard NBR O-Rings operate approximately from -30°C to +100°C, depending on working conditions.

Is this O-Ring suitable for industrial and OEM use?
Yes, it is commonly used in industrial systems, maintenance operations, and OEM production.