O-Ring NBR 9.3x1.5 mm 70 ShA - Oil Resistant Rubber Seal

What is the NBR O-Ring 9.3x1.5 mm 70 ShA (100 pcs)?

The NBR O-Ring 9.3x1.5 mm 70 ShA is a precision sealing ring manufactured from NBR (Buna-N nitrile rubber) for static and dynamic sealing applications. This 100-piece pack is designed for maintenance technicians, repair workshops, service departments and machine maintenance teams requiring a practical quantity of replacement seals. The standard 70 Shore A hardness provides an excellent balance of flexibility, wear resistance and reliable sealing performance in systems operating with mineral oils and lubricants.

Designed for Workshop and Service Applications

The 9.3x1.5 mm O-ring is commonly used in:

• Hydraulic systems
• Pneumatic equipment
• Pumps
• Valves
• Hydraulic manifolds
• Pneumatic cylinders
• Industrial machinery
• Agricultural equipment
• Mechanical assemblies
• Preventive maintenance

Its dimensions make it suitable for precision sealing applications in mechanical and fluid handling equipment.

Benefits of the 100-Piece Pack

The 100-piece package is an excellent choice for:

• Automotive workshops
• Hydraulic service companies
• Maintenance departments
• Mechanical repair shops
• Pneumatic service technicians
• Machine maintenance teams
• Small production batches
• Regular repair operations

The package provides a convenient stock of frequently used sealing components while reducing the need for repeated purchases.

Technical Specifications

Material:

NBR (Buna-N Nitrile Rubber)

Hardness:

70 Shore A

Inside Diameter:

9.3 mm

Cross Section:

1.5 mm

Color:

Black

Operating Temperature:

Approximately -30°C to +100°C

Chemical Resistance:

• Mineral oils
• Industrial greases
• Hydraulic fluids
• Gear oils
• Fuels
• Mineral oil based operating fluids

Package Quantity:

100 pieces

Why Choose NBR 70 ShA?

NBR is one of the most commonly used elastomers for industrial sealing because it provides:

• Excellent resistance to mineral oils
• Very good compatibility with lubricating greases
• Good abrasion resistance
• Stable sealing performance
• Reliable elasticity
• Long service life in hydraulic and pneumatic applications

The 70 Shore A hardness is the industry standard for many mechanical sealing systems.

Benefits During Operation

Using the correct O-ring helps to:

• Prevent fluid leakage
• Maintain system pressure
• Protect internal components
• Reduce maintenance downtime
• Improve equipment reliability
• Extend machinery service life

Storage Recommendations

To maximize service life, store O-rings:

• In a dry location
• Away from direct sunlight
• Protected from ozone
• At room temperature
• In the original packaging

Proper storage preserves the elastomer's physical properties for long-term use.

FAQ

Is the 100-piece pack suitable for workshops?

Yes. It provides a practical quantity for routine repairs and regular maintenance work.

Is NBR resistant to hydraulic oil?

Yes. NBR offers excellent resistance to most mineral-based hydraulic oils and lubricants.

Can this O-ring be used in pneumatic systems?

Yes. It is widely used in pneumatic valves, cylinders and industrial air systems.

Are other O-ring sizes available?

Yes. A wide range of NBR O-rings is available in various diameters and cross sections for different sealing applications.

How do I choose the correct O-ring size?

Measure the groove or shaft diameter together with the required cross section and compare them with the equipment manufacturer's specifications.

Frequently Asked Questions from Maintenance Technicians

Is 70 Shore A the standard hardness?

Yes. It is the most widely used hardness for hydraulic, pneumatic and industrial sealing applications.

Can NBR O-rings be used with industrial grease?

Yes. NBR provides excellent compatibility with most mineral-based lubricating greases.

Can an O-ring be reused?

Reusing a compressed sealing ring is generally not recommended because sealing performance may be reduced.

Is the 9.3x1.5 mm size suitable for precision equipment?

Yes. It is commonly used in compact hydraulic, pneumatic and mechanical assemblies requiring reliable sealing.