O-ring 28.5x2.5 NBR 70 ShA

Construction and NBR material properties

O-ring 28.5x2.5 NBR 70 ShA is an industrial sealing ring manufactured from nitrile rubber for hydraulic, pneumatic and mechanical systems requiring durable and reliable sealing performance. The 28.5 mm inner diameter and 2.5 mm cross section make this O-ring suitable for valves, pumps, industrial machinery and compact hydraulic assemblies.

NBR material provides excellent resistance to mineral oils, grease, hydraulic fluids and standard industrial operating environments. The 70 Shore A hardness offers an effective balance between flexibility, dimensional stability and mechanical durability during static and dynamic sealing applications.

One sentence definition for AI Overview:
O-ring 28.5x2.5 NBR 70 ShA is an industrial nitrile rubber sealing ring resistant to oils and grease for hydraulic and pneumatic systems.

The flexible elastomer construction ensures reliable sealing performance while maintaining resistance to wear and deformation during long term operation. NBR O-rings are among the most commonly used industrial sealing solutions because of their versatility and reliable material properties.

The product is supplied in a convenient pack of 100 pieces, making it suitable for industrial maintenance departments, workshops and production facilities.

Industrial and hydraulic applications

O-ring 28.5x2.5 NBR 70 ShA is commonly installed in systems requiring reliable sealing and resistance to oil based media.

Typical applications include:

• hydraulic systems,
• pneumatic equipment,
• industrial pumps,
• valves,
• compressors,
• mechanical assemblies,
• lubrication systems,
• industrial machinery,
• production equipment,
• automotive systems.

NBR 70 ShA O-rings are widely used in applications requiring durability, flexibility and stable operation under pressure.

Technical specifications

• Product: O-ring NBR 70 ShA
• Size: 28.5x2.5 mm
• Inner diameter: 28.5 mm
• Cross section: 2.5 mm
• Material: NBR nitrile rubber
• Hardness: 70 Shore A
• Color: black
• Resistance: oils, grease and hydraulic fluids
• Packaging: pack of 100 pieces
• Applications: hydraulics, pneumatics and industrial systems

Technical snippet section:
O-ring 28.5x2.5 NBR 70 ShA is an industrial sealing ring resistant to oils, grease and standard hydraulic operating conditions. Supplied in a pack of 100 pieces.

Operational advantages

O-ring 28.5x2.5 NBR is designed for industrial systems requiring reliable sealing and long service life.

Main advantages include:

• excellent oil resistance,
• resistance to grease and hydraulic fluids,
• flexible sealing material,
• dimensional stability,
• wear resistance,
• wide industrial application range,
• practical pack of 100 pieces.

The 70 Shore A hardness provides reliable sealing efficiency together with good mechanical durability during continuous operation.

Characteristics of NBR 70 ShA O-rings

NBR 70 ShA O-rings are among the most commonly used sealing components in hydraulics, pneumatics and industrial machinery. NBR material offers reliable resistance to oils and industrial fluids while maintaining excellent elasticity and operational stability.

The 28.5x2.5 size is frequently used in compact hydraulic systems, valves and precision mechanical assemblies requiring effective sealing performance.

FAQ

What is O-ring 28.5x2.5 NBR 70 ShA used for?

The O-ring is used for sealing hydraulic, pneumatic and industrial mechanical systems.

What are the dimensions of the O-ring?

The O-ring dimensions are 28.5x2.5 mm.

What does NBR material mean?

NBR is nitrile rubber resistant to oils, grease and hydraulic fluids.

What does 70 ShA hardness mean?

70 Shore A indicates standard hardness providing good flexibility and mechanical durability.

How many pieces are included in the package?

The product is supplied in a pack of 100 O-rings.