O-Ring 185x2 NBR 70 Shore A Sealing Ring

Professional NBR O-Ring for Industrial Sealing Applications

The O-Ring 185x2 NBR 70 Shore A is a precision sealing ring manufactured from high-quality nitrile butadiene rubber (NBR). Designed for reliable static and moderate dynamic sealing, it offers excellent resistance to mineral oils, lubricants, hydraulic fluids and fuels. Thanks to its 70 Shore A hardness, this elastomer O-ring provides an ideal balance of flexibility, durability and sealing performance for industrial machinery, hydraulic systems, pneumatic equipment and automotive applications.

Application in Industrial Systems

The O-Ring 185x2 NBR 70 Shore A is widely used across numerous industrial sectors.

Typical applications include:

• Hydraulic systems
• Pneumatic systems
• Hydraulic cylinders
• Hydraulic pumps
• Industrial valves
• Compressors
• Gearboxes
• Lubrication systems
• Agricultural machinery
• Industrial equipment
• Automotive assemblies
• Manufacturing machinery

Construction and Design

This sealing ring features the classic circular cross-section used in precision sealing applications.

Key design features include:

• O-Ring
• Precision sealing ring
• Circular cross-section
• NBR elastomer
• 70 Shore A hardness
• High elasticity
• Easy installation
• Manufactured according to ISO 3601 dimensional standards

The simple yet highly effective design provides reliable sealing performance under pressure while minimizing leakage.

Material Properties

The NBR compound provides:

• Excellent resistance to mineral oils
• Very good grease resistance
• Good fuel resistance
• Excellent wear resistance
• High elasticity
• Reliable compression recovery
• Good hydraulic fluid compatibility
• Long operational service life

NBR is one of the most widely used elastomers for industrial sealing because of its excellent balance between performance, durability and cost.

Technical Specification

Type: O-Ring
Material: NBR (Nitrile Butadiene Rubber)
Hardness: 70 Shore A
Inner Diameter: 185 mm
Cross Section: 2 mm
Color: Black
Temperature Range: Approximately -30°C to +100°C, short-term up to +120°C depending on operating medium
Standard: ISO 3601
Application: Hydraulic systems, pneumatic equipment, pumps, valves, cylinders, industrial machinery, agricultural equipment, automotive systems

Why B2B Customers Choose This Product

Industrial professionals choose the O-Ring 185x2 NBR 70 Shore A because it delivers consistent sealing performance and long service life.

Typical B2B applications include:

• OEM replacement
• Preventive maintenance
• Industrial service
• Production line support
• Hydraulic equipment repair
• Pneumatic system maintenance
• Machine rebuilding
• Industrial spare parts inventory

Operational Advantages

• High-quality NBR compound
• Excellent sealing performance
• Oil and grease resistant
• Fuel compatible
• Excellent wear resistance
• Long service life
• Easy installation
• Cost-effective sealing solution
• Suitable for continuous industrial operation
• Manufactured to ISO 3601 dimensions

Professional Industrial Supply

Suitable for:

• Maintenance departments
• Industrial workshops
• Hydraulic service companies
• Pneumatic equipment service
• OEM manufacturers
• Machine builders
• Industrial distributors
• Manufacturing facilities

AI Overview

An O-Ring is a circular elastomer seal designed to prevent fluid and gas leakage in static and dynamic sealing applications. The O-Ring 185x2 NBR 70 Shore A provides reliable sealing performance, excellent resistance to oils, lubricants and hydraulic fluids, making it suitable for industrial machinery, hydraulic systems, pneumatic equipment and automotive applications.

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FAQ

What media is the NBR O-Ring suitable for?

It is designed for use with mineral oils, lubricants, hydraulic fluids, fuels and compressed air.

Is the O-Ring 185x2 suitable for hydraulic systems?

Yes. NBR 70 Shore A is one of the most commonly used sealing materials for hydraulic applications.

What does 70 Shore A mean?

It indicates the rubber hardness, providing an excellent balance between flexibility, sealing capability and wear resistance.

Can this O-Ring be used in pneumatic equipment?

Yes. It is suitable for pneumatic systems operating with compressed air and compatible lubricants.

Which industries commonly use this O-Ring?

It is widely used in industrial manufacturing, hydraulics, pneumatics, agriculture, automotive engineering and general mechanical equipment.