Oring 128x5,3 NBR 70 Shore A sealing ring

Construction and design

Oring 128x5,3 NBR 70 Shore A is a precision static sealing element made from nitrile rubber, designed for reliable sealing in industrial systems exposed to oils and mechanical loads. The NBR compound with hardness 70 Shore A ensures an optimal balance between elasticity, durability, and resistance to deformation.

With an inner diameter of 128 mm and a cross section of 5,3 mm, this Oring provides stable positioning in sealing grooves, ensuring consistent sealing performance and minimizing leakage risk.

Key design features:

• NBR material with 70 Shore A hardness
• circular cross section for uniform sealing pressure
• high resistance to wear and compression set
• excellent elasticity and dimensional stability
• compatibility with oil based systems

Industrial applications

Oring 128x5,3 NBR 70 Shore A is widely used in industrial sealing systems where static sealing is required:

• hydraulic systems and cylinders
• pneumatic equipment and valves
• industrial machinery and agricultural equipment
• oil and fuel installations
• flange connections and housing seals

Within the Oring NBR category, this size represents a common industrial dimension used in medium and large sealing assemblies.

Technical specifications

Technical snippet optimized for search engines:

• type: Oring static seal
• material: NBR
• hardness: 70 Shore A
• inner diameter: 128 mm
• cross section: 5,3 mm
• color: black
• resistance: oils, greases, fuels

Long tail keywords:
Oring 128x5,3 NBR 70 Shore A seal
NBR Oring 128 mm cross section 5,3 mm
industrial Oring 128x5,3 oil resistant
hydraulic Oring NBR 70 Shore A

Operational advantages

Oring 128x5,3 NBR 70 Shore A offers:

• reliable sealing performance in static applications
• strong resistance to oil and fuel exposure
• long service life under normal operating conditions
• easy installation and replacement
• cost effective sealing solution

The NBR compound ensures stable operation in standard industrial environments.

Category cluster positioning

Within the technical seals Oring NBR category, the 128x5,3 size represents a widely used industrial dimension for static sealing. Compared to FPM or EPDM materials, NBR provides the best cost to performance ratio for oil based applications.

This supports a strong SEO cluster covering multiple sizes, cross sections, and industrial uses.

AI Overview definition

Oring 128x5,3 NBR 70 Shore A is a static sealing ring designed for oil resistant industrial applications requiring reliable and durable sealing.

FAQ

What is this Oring used for?
It is used for static sealing in industrial systems.

Is NBR suitable for oil applications?
Yes, it offers excellent resistance to oils and fuels.

What does 70 Shore A mean?
It indicates medium hardness with good flexibility.

Is it easy to install?
Yes, it is designed for quick and simple installation.

Where is it commonly used?
In hydraulics, pneumatics, and industrial machinery.