NBR O-ring 50x2.5 mm 70 Shore Technical Seal

NBR O-ring 50x2.5 mm 70 Shore Technical Seal

NBR O-ring 50x2.5 mm 70 Shore is a nitrile rubber sealing ring designed to provide reliable sealing in hydraulic systems, pneumatic installations and industrial machinery operating with oils and lubricants.

Within the category of technical seals NBR O-rings, this dimensional configuration belongs to medium cross section sealing elements widely used in industrial machinery and fluid control systems. NBR nitrile rubber is one of the most commonly used elastomers in industrial sealing technology because it offers excellent resistance to mineral oils, greases and many technical fluids used in mechanical equipment.

The NBR O-ring 50x2.5 mm is frequently searched using dimensional phrases such as O-ring 50x2.5, NBR O-ring 50 mm, rubber sealing ring 50x2.5 mm, or nitrile O-ring 2.5 mm cross section. These long tail dimensional queries typically appear when replacing seals in pumps, hydraulic valves, pneumatic connectors and industrial mechanical assemblies.

With a hardness of 70 Shore A, the nitrile elastomer compound provides an optimal balance between flexibility and mechanical resistance. This allows the O-ring to compress properly within sealing grooves and maintain stable sealing performance under pressure and vibration while exposed to oils or lubricants.

In modern industrial systems NBR O-rings are widely used because they provide durable sealing performance, chemical resistance and cost effective maintenance for a wide range of industrial applications.

Construction and Material

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

Important 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 allows 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 50x2.5 mm corresponds to the following parameters:

Inner diameter: 50 mm
Cross section thickness: 2.5 mm
Outer diameter: approximately 55 mm

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

Typical dimensional search queries include:

NBR O-ring 50x2.5 mm
rubber sealing ring 50 mm inner diameter
industrial nitrile O-ring 2.5 mm cross section
O-ring seal 50 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 50x2.5 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 provide reliable sealing performance combined 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: 50 mm
Cross section: 2.5 mm
Outer diameter: approximately 55 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 50x2.5 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.