Main Description

The O-Ring 100x5 NBR 70 Shore is a high-quality industrial sealing ring designed for reliable sealing in demanding hydraulic and pneumatic applications. With an inner diameter of 100 mm and a 5 mm cross-section, this O-Ring provides a robust sealing profile suitable for systems operating under pressure, vibration, and continuous mechanical load.

Manufactured from NBR (nitrile butadiene rubber) with a hardness of 70 Shore A, this rubber seal offers an optimal balance between elasticity and mechanical strength. The 70 Shore hardness ensures effective compression and shape recovery, making the O-Ring suitable for both static seals and selected dynamic applications. NBR is widely recognized for its excellent chemical resistance to mineral oils, greases, fuels, and many industrial fluids, which makes it a standard material for technical sealing components.

The O-Ring 100x5 is commonly used as a rubber gasket in housings, flanges, valve bodies, pumps, and covers, where consistent sealing pressure and leak prevention are critical. Its precise geometry ensures uniform contact with sealing surfaces, reducing wear and minimizing the risk of extrusion or premature failure. This contributes directly to high durability and stable long-term performance in industrial systems.

Thanks to its standard dimensions, this industrial sealing ring integrates easily into existing groove designs and sealing assemblies. It is widely applied in machinery, hydraulic power units, compressors, gearboxes, and general-purpose industrial equipment. The predictable behavior of NBR 70 Shore supports reduced maintenance intervals, improved system reliability, and lower operating costs for B2B users.

Designed for professional use, the O-Ring 100x5 NBR 70 Shore is a reliable solution for engineers and procurement managers seeking consistent quality, repeatable sealing performance, and compatibility with common industrial media.

FAQ - Frequently Asked Questions

What does O-Ring 100x5 mean?
It means an inner diameter of 100 mm and a cross-section thickness of 5 mm.

What is NBR 70 Shore suitable for?
It is suitable for sealing applications involving oils, fuels, greases, and many industrial fluids.

Can this O-Ring be used in hydraulic systems?
Yes, it is widely used in hydraulic and pneumatic sealing applications.

Is this O-Ring suitable for static sealing?
Yes, it is ideal for static sealing and can also be used in controlled dynamic applications.

Is 100x5 a standard industrial size?
Yes, it is a commonly used size in industrial sealing systems.