NBR 70 O-Ring 52x2 mm

Product Overview

The 52x2 mm NBR 70 O-Ring is a high-quality sealing ring manufactured from Nitrile Butadiene Rubber (NBR) with a hardness of 70 Shore A. Designed to provide reliable sealing in static and dynamic applications, it offers excellent resistance to mineral oils, greases, hydraulic fluids and many industrial lubricants.

This product is supplied in economical packs of 100 pieces, making it an ideal choice for industrial maintenance departments, manufacturing facilities, service workshops and wholesale customers requiring larger quantities.

With an inside diameter of 52 mm and a 2 mm cross-section, the O-ring delivers dependable sealing performance in hydraulic systems, pneumatic equipment, industrial machinery, automotive components and general engineering applications.

Technical Specifications

Key Features

The 52x2 NBR 70 O-Ring offers:

• High-quality NBR rubber
• 70 Shore A hardness
• Excellent resistance to mineral oils
• Good resistance to greases and hydraulic fluids
• Reliable sealing performance
• High abrasion resistance
• Long service life
• Flexible and durable construction
• Easy installation
• Cost-effective pack of 100 pieces
• Suitable for professional and industrial use

Typical Applications

The 52x2 mm NBR O-Ring is commonly used in:

• Hydraulic systems
• Pneumatic equipment
• Hydraulic cylinders
• Pneumatic cylinders
• Pumps
• Valves
• Compressors
• Automotive components
• Agricultural machinery
• Industrial machinery
• Maintenance and repair operations
• OEM manufacturing

Material Properties – NBR 70 Shore A

NBR (Nitrile Butadiene Rubber) provides:

• Excellent resistance to mineral oils
• High resistance to greases
• Good resistance to hydraulic fluids
• Good mechanical strength
• High wear resistance
• Reliable sealing performance
• Excellent value for industrial applications

Why Choose NBR O-Rings?

NBR is one of the world's most widely used sealing materials because it combines:

• Reliable performance
• Long service life
• Excellent chemical resistance to petroleum-based lubricants
• Good flexibility
• Easy installation
• Cost-effective operation

Frequently Asked Questions (FAQ)

What are the O-ring dimensions?

The O-ring measures 52 mm inside diameter × 2 mm cross-section.

What does NBR 70 mean?

It indicates that the O-ring is manufactured from Nitrile Butadiene Rubber with a hardness of 70 Shore A.

How many O-rings are included?

Each package contains 100 pieces.

What media is NBR resistant to?

NBR offers excellent resistance to mineral oils, greases, hydraulic fluids and compressed air.

Where is this O-ring commonly used?

It is widely used in hydraulic systems, pneumatic equipment, automotive components and industrial machinery.

Frequently Asked Questions from Engineers

Why choose NBR for sealing applications?

NBR provides an excellent balance of oil resistance, durability, flexibility and cost-effectiveness, making it the standard material for many industrial sealing applications.

What are the most common causes of O-ring failure?

• Incorrect sizing
• Improper installation
• Excessive pressure
• Chemical incompatibility
• High operating temperatures
• Mechanical damage

How can O-ring service life be extended?

Use the correct groove dimensions, lubricate the seal during installation, avoid twisting the O-ring and select the appropriate material for the operating medium and temperature.