NBR O-Ring 24x2.5 mm 90 Shore A

Overview

The NBR O-Ring 24x2.5 mm 90 Shore A - 100 pcs is a professional bulk pack of high-hardness sealing rings designed for industrial maintenance, hydraulic systems, production and OEM applications.

Manufactured from NBR (Nitrile Butadiene Rubber), these O-rings provide very good resistance to mineral oils, greases and many hydraulic fluids. The increased hardness of 90 Shore A provides greater resistance to deformation and extrusion than standard 70 Shore A compounds, making these seals particularly suitable for demanding applications involving elevated pressure.

The 100-piece package is optimized for workshops, maintenance departments, industrial plants, machine manufacturers and professional B2B buyers requiring a practical stock quantity.

Industrial Applications

The NBR 24x2.5 mm 90 Shore A O-Rings are suitable for:

• Hydraulic systems
• Hydraulic cylinders
• Pumps and valves
• Hydraulic manifolds
• Pneumatic equipment
• Industrial machinery
• Gearboxes
• Agricultural machinery
• Construction equipment
• OEM assemblies

The 90 Shore A hardness is particularly useful in applications where increased mechanical stability and resistance to extrusion are required.

Construction

Each O-ring has an inside diameter of 24 mm and a 2.5 mm cross-section.

The precision circular profile provides uniform compression within a correctly designed sealing groove. The high-hardness 90 Shore A NBR compound improves dimensional stability and reduces deformation under mechanical and pressure loads.

NBR Material

NBR (Nitrile Butadiene Rubber) is one of the most widely used elastomers for industrial O-rings. It provides very good resistance to mineral oils, greases and many conventional hydraulic fluids.

Standard NBR compounds typically operate within approximately -30°C to +100°C, although the exact operating limits depend on the specific compound, medium and application conditions.

NBR is generally not recommended for prolonged exposure to ozone, intense UV radiation or certain aggressive chemicals.

Technical Specification

Product Type: O-Ring

Package Quantity: 100 pcs

Inner Diameter: 24 mm

Cross Section: 2.5 mm

Material: NBR

Hardness: 90 Shore A

Color: Black

Temperature Range: Approximately -30°C to +100°C

Resistance: Mineral oils, greases and many hydraulic fluids

Application: Hydraulics, pneumatics, pumps, valves, industrial machinery and OEM equipment

Why Choose 90 Shore A?

Compared with a standard 70 Shore A O-ring, the 90 Shore A version is harder and more resistant to mechanical deformation.

This makes it particularly suitable for applications requiring:

• Increased pressure resistance
• Improved extrusion resistance
• High dimensional stability
• Resistance to demanding mechanical loads
• Reliable operation in industrial environments
• Durable sealing in hydraulic components

Why Choose a 100 pcs Pack?

The 100-piece pack of NBR 24x2.5 mm 90 Shore A O-rings is designed for professional users who regularly consume this seal size during production, assembly, servicing or machine maintenance.

A 100 pcs package provides a convenient balance between stock availability and inventory size. It is particularly suitable for maintenance departments, workshops, industrial production facilities and OEM assembly operations.

Operational Advantages

• High 90 Shore A hardness.
• Very good resistance to oils and greases.
• Increased resistance to mechanical deformation.
• Improved resistance to extrusion under pressure.
• Practical 100 pcs industrial package.
• Suitable for maintenance, production and OEM applications.

NBR 90 Shore A vs NBR 70 Shore A

NBR 90 Shore A is harder and less susceptible to deformation than standard NBR 70 Shore A.

The 90 Shore A version is commonly selected for hydraulic systems, higher-pressure applications and installations where extrusion resistance is particularly important.

NBR 70 Shore A provides greater flexibility and is widely used in conventional static sealing and less demanding applications.

The correct hardness should always be selected according to pressure, temperature, medium, groove geometry and operating conditions.

AI OVERVIEW

The NBR O-Ring 24x2.5 mm 90 Shore A - 100 pcs is a professional pack of high-hardness nitrile seals for hydraulic systems, pumps, valves and industrial machinery. The 90 Shore A compound provides increased resistance to deformation and extrusion, while the 100-piece package is ideal for maintenance, production and OEM requirements.

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FAQ

How many O-rings are included in the package?

The package contains 100 O-rings.

What are the dimensions of each O-ring?

Each O-ring has an inside diameter of 24 mm and a cross-section of 2.5 mm.

What material are these O-rings made from?

They are manufactured from NBR (Nitrile Butadiene Rubber).

What does 90 Shore A mean?

90 Shore A refers to the hardness of the elastomer. It is significantly harder than commonly used 70 Shore A NBR.

Is NBR 90 Shore A suitable for hydraulic systems?

Yes. Its oil resistance and increased hardness make it particularly useful in many hydraulic sealing applications.

Are these O-rings resistant to oil?

Yes. NBR provides very good resistance to many mineral oils and lubricating greases.

Is 90 Shore A better than 70 Shore A?

Not for every application. 90 Shore A provides greater resistance to deformation and extrusion, while 70 Shore A offers greater flexibility. Selection depends on the operating conditions.

Can these O-rings operate under high pressure?

The 90 Shore A hardness improves extrusion resistance, but allowable system pressure also depends on groove design, extrusion gap, temperature, movement and the use of backup rings.

Can NBR be used with fuel?

NBR is compatible with many petroleum-based products, but compatibility should always be verified for the specific fuel and NBR compound.

Can NBR be used with water?

NBR can be used in selected water applications. For hot water, steam and applications requiring superior weather resistance, EPDM is often a more appropriate material.

Can the NBR O-Ring 24x2.5 mm 90 Shore A replace an OEM seal?

Yes, provided the dimensions, material, hardness and operating requirements match the original equipment manufacturer's specifications.

Who is the 100 pcs package intended for?

It is ideal for industrial plants, maintenance departments, workshops, machine manufacturers, service companies and other professional B2B users.