O-Ring 24x4 NBR 70 Shore A

Workshop and Maintenance Applications

O-Ring 24x4 NBR 70 Shore A 100 pcs is a precision technical sealing ring manufactured from NBR (Nitrile Butadiene Rubber, Buna-N) with an inside diameter of 24 mm and a 4 mm cross section. Designed for static sealing and many dynamic applications, it performs reliably in systems operating with mineral oils, lubricating greases and standard hydraulic fluids. The 100-piece package is intended for workshops, maintenance departments, service technicians, repair companies and small-scale assembly operations that require immediate access to frequently used sealing components without purchasing industrial bulk quantities.

Why Choose the 100-Piece Package?

The 100-piece package is designed for regular maintenance and repair work where the same seal size is used repeatedly.

Key benefits include:

• Convenient workshop stock
• Fast replacement during maintenance
• Reduced purchasing frequency
• Lower cost per seal than individual purchases
• Easy inventory management
• Suitable quantity for service work and small assembly projects

It is an efficient solution for mechanics, maintenance engineers and technical service teams.

Technical Specification

Material: NBR (Nitrile Butadiene Rubber, Buna-N)

Hardness: 70 Shore A

Inside Diameter: 24 mm

Cross Section: 4 mm

Profile: O-Ring

Colour: Black

Operating Temperature: Approximately -30°C to +100°C depending on the operating medium

Chemical Resistance:

• Mineral oils
• Lubricating greases
• Hydraulic fluids
• Many petroleum-based industrial fluids

Packaging: 100 pieces

Application: Static and dynamic sealing

Why NBR 70 Shore A?

NBR is the standard sealing material used throughout industry because it combines excellent sealing performance with good mechanical durability.

Main advantages:

• Excellent resistance to mineral oils
• Good grease compatibility
• Good resistance to hydraulic fluids
• High abrasion resistance
• Good mechanical strength
• Low compression set
• Reliable long-term sealing performance

The 70 Shore A hardness is the most widely specified hardness for general industrial sealing applications.

Hydraulic and Pneumatic Systems

The 24x4 mm O-Ring is commonly installed in:

• Hydraulic pumps
• Hydraulic valves
• Hydraulic cylinders
• Pneumatic cylinders
• Air valves
• Compressors
• Lubrication systems
• Industrial machinery

Correctly selected O-rings help maintain system pressure while preventing lubricant and air leakage.

Machine Repair and Maintenance

The 100-piece package is particularly suitable for:

• Machine servicing
• Preventive maintenance
• Hydraulic repairs
• Pneumatic equipment servicing
• Component rebuilding
• Industrial maintenance
• Equipment assembly
• Small production batches

Keeping commonly used O-rings readily available reduces repair time and minimizes equipment downtime.

Storage Recommendations

To maximize service life, O-rings should be stored:

• In a dry environment
• Away from direct sunlight
• Protected from ozone exposure
• Away from excessive heat
• In the original packaging until use

Proper storage helps preserve the elasticity and sealing performance of NBR rubber.

Warehouse and Delivery

The product is available from our warehouse:

Warehouse and Store

Lublin

Smoluchowskiego 1, Building 4

24-hour dispatch

We supply customers throughout Poland and European Union countries.

Frequently Asked Questions (FAQ)

Is the 100-piece package suitable for a workshop?

Yes. It provides an ideal quantity for workshops and maintenance teams performing regular machine servicing and repairs.

Is the 24x4 NBR O-Ring compatible with hydraulic oil?

Yes. NBR is specifically designed for use with most mineral oil-based hydraulic fluids.

Is this size available in larger packages?

Yes. Larger packaging options are available for customers with higher consumption requirements.

Are other hardness ratings available?

Yes. Depending on the application, O-rings are also available in different hardness grades and elastomer materials.

How should NBR O-rings be stored?

Store them in a cool, dry location away from UV light, ozone and excessive heat to preserve their sealing properties.

Frequently Asked Questions from Service Engineers and Mechanics

Is the 4 mm cross section suitable for hydraulic cylinder repairs?

Yes, provided the equipment manufacturer specifies a 24x4 mm sealing groove.

Can NBR 70 Shore A be used in pneumatic equipment?

Yes. It is widely used in both hydraulic and pneumatic sealing systems.

Is it worth keeping this size in workshop inventory?

Yes. The 24x4 mm size is frequently used during maintenance of industrial machinery and hydraulic equipment.

Should the O-ring be lubricated during installation?

In many applications, applying a lubricant compatible with the operating medium helps prevent installation damage and improves sealing performance.

How can O-ring damage during installation be avoided?

Clean the groove thoroughly, use suitable installation tools and avoid twisting or overstretching the seal.