O-Ring 18,72x2,62 NBR 90 ShA

Material properties and technical performance

Industrial applications - hydraulics and pneumatics

B2B sealing solution - reliability and consistency

Main description (SEO)

The O-Ring 18,72x2,62 NBR 90 ShA is a precision-manufactured industrial sealing ring designed for demanding technical applications where pressure resistance, dimensional stability, and long service life are critical. Manufactured from high-quality nitrile rubber (NBR) with increased hardness of 90 ShA, this rubber seal is optimized for high-pressure static and semi-dynamic sealing environments.

NBR is widely recognized for its excellent chemical resistance to mineral oils, hydraulic fluids, greases, fuels, and many industrial media. The elevated hardness level significantly reduces the risk of extrusion in sealing grooves, making this O-Ring especially suitable for hydraulic and pneumatic applications operating under increased pressure and mechanical stress. The material maintains elasticity and sealing integrity over a wide operating temperature range typical for industrial systems.

The 18,72x2,62 O-Ring is primarily used as a static seal, but it also performs reliably in controlled semi-dynamic conditions where low friction and consistent sealing force are required. Its precise geometry ensures uniform compression, contributing to high durability, reduced maintenance intervals, and predictable sealing performance.

Typical industrial applications include hydraulic cylinders, valves, pumps, connectors, pneumatic actuators, control blocks, and general machinery components where technical sealing components must meet strict reliability standards. Supplied as a pack of 100, this product is ideal for B2B customers, maintenance departments, OEM production, and industrial procurement requiring consistency, availability, and cost efficiency.

FAQ - Frequently asked questions

What material is the O-Ring made of?
It is made of nitrile rubber (NBR), suitable for oil-based and hydraulic media.

What does 90 ShA hardness mean?
90 ShA indicates increased hardness, providing better resistance to extrusion and high pressure.

Is this O-Ring suitable for hydraulic systems?
Yes, it is designed for hydraulic and pneumatic sealing applications.

Can it be used for dynamic sealing?
It is mainly intended for static sealing and selected semi-dynamic applications.

How is the product supplied?
The O-Rings are supplied in a pack of 100 pieces.