O-Ring Ø212x5.3 NBR 80 ShA

NBR 80 O-ring for large-diameter technical sealing

High oil resistance and pressure stability

Hydraulic, pneumatic and industrial applications

O-Ring Ø212x5.3 NBR 80 ShA is a professional rubber sealing ring designed for reliable technical sealing in demanding industrial applications. This product is intended for B2B customers who require durable sealing solutions for large diameters, ensuring tightness, dimensional stability and safe operation of equipment.

The O-ring is manufactured from NBR rubber with a hardness of 80 ShA, providing high resistance to mineral oils, greases, fuels and other petroleum-based media. The selected hardness offers an optimal balance between elasticity and resistance to deformation under pressure, making the sealing ring suitable for static and semi-dynamic applications. NBR material also delivers good abrasion resistance and aging stability, contributing to long service life.

With dimensions Ø212x5.3 mm, this sealing ring is well suited for large sealing grooves in flanges, covers, housings, tanks and process installations. It is widely used as a hydraulic and pneumatic seal, as well as in industrial machinery where oil exposure and elevated operating pressures are present.

The simple geometry allows for easy installation and minimizes the risk of damage during assembly, which is critical for maintenance efficiency and operational reliability. This O-ring is a proven solution for technical sealing where durability, tightness and predictable performance are required.

FAQ - frequently asked questions

Which material is the O-Ring Ø212x5.3 made of?
It is made of NBR rubber with a hardness of 80 ShA.

Where is this O-ring typically used?
In hydraulic, pneumatic and industrial sealing applications, especially for large diameters.

Is NBR 80 suitable for higher pressures?
Yes, the 80 ShA hardness provides improved pressure stability compared to softer compounds.

Can this O-ring be used in semi-dynamic applications?
Yes, when correctly installed and matched to operating conditions.

How do I select the correct NBR O-ring?
Consider diameter, cross-section, hardness, operating temperature and the sealing medium.