NBR O-ring 48.2x3 mm 70 Shore Technical Seal

NBR O-ring 48.2x3 mm 70 Shore Technical Seal

NBR O-ring 48.2x3 mm 70 Shore is a nitrile rubber sealing ring designed for reliable sealing in hydraulic systems, pneumatic installations and industrial machinery operating with oils, lubricants and technical fluids.

Within the category of technical seals NBR O-rings, this dimensional configuration represents a medium cross section sealing element widely used in industrial equipment and mechanical assemblies requiring durable elastomer sealing. NBR nitrile rubber is one of the most commonly used materials in sealing technology because it offers excellent resistance to mineral oils, greases and many industrial fluids.

The NBR O-ring 48.2x3 mm is frequently searched using dimensional queries such as O-ring 48.2x3, NBR O-ring 48 mm, rubber sealing ring 48.2x3 mm, or nitrile O-ring 3 mm cross section. These long tail dimensional searches typically appear during maintenance of pumps, hydraulic valves, pneumatic fittings and industrial fluid control systems.

With a hardness of 70 Shore A, the nitrile elastomer compound provides a balanced combination of flexibility and mechanical strength. This allows the O-ring to compress correctly inside the sealing groove and maintain stable sealing performance under pressure, vibration and exposure to oils or lubricants.

In modern machinery NBR O-rings are widely used because they provide reliable sealing performance, chemical resistance and long service life in a wide range of industrial applications.

Construction and Material

The sealing ring is manufactured from NBR nitrile rubber, an elastomer specifically engineered for sealing systems exposed to oils, fuels and lubricants.

Key material properties include:

excellent resistance to mineral oils
good compatibility with hydraulic fluids
high elasticity and compression recovery
good durability in industrial environments

The circular cross section of the O-ring ensures uniform compression inside the sealing groove. When installed between sealing surfaces the elastomer forms a tight sealing barrier preventing leakage of liquids or gases.

Because of these characteristics technical seals NBR O-rings are widely used in hydraulic equipment, industrial automation systems and mechanical maintenance operations.

Dimensional Compatibility

Correct dimensional selection is essential for reliable sealing performance.

The O-ring 48.2x3 mm corresponds to the following parameters:

Inner diameter: 48.2 mm
Cross section thickness: 3 mm
Outer diameter: approximately 54.2 mm

This dimensional format is commonly used in sealing grooves found in pumps, valve housings and industrial machinery components.

Typical dimensional search queries include:

NBR O-ring 48.2x3 mm
rubber sealing ring 48 mm inner diameter
industrial nitrile O-ring 3 mm cross section
O-ring seal 48 mm hydraulic application

Industrial Applications

Technical seals from the NBR O-rings category are widely used across many industrial sectors where oil resistant elastomer sealing rings are required.

Typical applications include:

hydraulic systems in industrial machinery
pneumatic automation equipment
industrial pumps and compressors
machine housings and mechanical covers
lubrication systems
fluid distribution components

In these installations the O-ring 48.2x3 mm commonly functions as a static seal preventing leakage of oil, lubricants or compressed air within mechanical assemblies.

Operational Advantages

Maintenance engineers frequently choose NBR O-rings because they combine reliable sealing performance with durability and cost efficiency.

Key advantages include:

excellent resistance to oils and lubricants
stable sealing performance under compression
high elasticity and recovery
good wear resistance in mechanical systems
economical sealing solution for industrial maintenance

These properties make nitrile rubber sealing rings one of the most widely used sealing components in industrial engineering.

Technical Specification

Type: elastomer sealing ring O-ring
Material: NBR nitrile rubber
Hardness: 70 Shore A
Inner diameter: 48.2 mm
Cross section: 3 mm
Outer diameter: approximately 54.2 mm
Color: black
Temperature range: approx -30 C to +100 C
Application: hydraulic pneumatic industrial sealing
Packaging: 100 pieces

FAQ

What machines use the NBR O-ring 48.2x3 mm
This size is commonly used in hydraulic valves, pneumatic connectors, pumps and industrial fluid control systems.

Is NBR suitable for oil sealing applications
Yes. NBR nitrile rubber provides excellent resistance to mineral oils, lubricants and hydraulic fluids.

Can this O-ring be used in pneumatic systems
Yes. NBR O-rings are widely used in compressed air installations and pneumatic automation equipment.

What does 70 Shore hardness indicate
70 Shore A indicates medium hardness elastomer providing a balance between flexibility and resistance to deformation during compression sealing.