NBR O-Ring 510x4 mm 70 Shore A

Large Diameter NBR O-Ring for Industrial Sealing Applications

The NBR O-Ring 510x4 mm 70 Shore A is a precision-engineered sealing ring manufactured from high-quality nitrile butadiene rubber (NBR). Designed for large industrial sealing applications, it delivers reliable sealing performance in hydraulic systems, industrial pumps, pressure vessels, gearboxes and heavy machinery. The combination of a 510 mm inside diameter and a 4 mm cross section provides dependable static and slow dynamic sealing while offering excellent resistance to mineral oils, lubricating greases, hydraulic fluids and aliphatic fuels. It is an ideal solution for OEM manufacturers, industrial maintenance departments and engineering companies.

Application in Industrial Systems

The NBR O-Ring 510x4 mm is widely used in:

• Hydraulic cylinders
• Hydraulic systems
• Pneumatic equipment
• Industrial pumps
• Gearboxes
• Pressure vessels
• Process equipment
• Heavy industrial machinery
• Agricultural machinery
• Mining equipment
• OEM manufacturing
• Industrial processing systems

Industry entities naturally included:

• NBR O-ring
• Nitrile O-ring
• Industrial sealing ring
• Hydraulic seal
• Pneumatic seal
• Static seal
• Elastomer seal
• Rubber sealing ring
• Precision O-ring
• Industrial gasket

Construction and Design

The O-ring is manufactured as a one-piece precision molded sealing component with a circular cross section for uniform sealing pressure.

Key design features include:

• One-piece molded construction
• Precision circular profile
• Excellent elasticity
• High dimensional stability
• Low compression set
• Easy installation
• Reliable sealing performance
• Long operational life

Its 4 mm cross section provides an effective balance between flexibility and sealing efficiency in large industrial assemblies.

Material Properties

NBR (Nitrile Butadiene Rubber) provides excellent resistance to:

• Mineral oils
• Lubricating greases
• Hydraulic fluids
• Gear oils
• Aliphatic fuels
• Water
• Diluted acids and alkalis
• Mechanical wear

Typical operating temperature range is approximately -30°C to +100°C, depending on the rubber compound and service conditions. NBR is generally not recommended for prolonged exposure to ozone, UV radiation or severe outdoor weathering.

Technical Specification

Type: O-ring
Material: NBR (Nitrile Butadiene Rubber)
Hardness: 70 Shore A
Inner Diameter: 510 mm
Cross Section: 4 mm
Outer Diameter: 518 mm
Color: Black
Standard: DIN ISO 3601
Operating Temperature: Approximately -30°C to +100°C
Resistance: Mineral oils, lubricating greases, hydraulic fluids and aliphatic fuels
Application: Static and slow dynamic sealing in hydraulic, pneumatic and industrial equipment

Why B2B Customers Choose This Product

Industrial customers choose the NBR O-Ring 510x4 mm because it provides reliable sealing performance in large industrial equipment while helping reduce maintenance costs and production downtime.

Ideal for:

• OEM replacement
• Preventive maintenance
• Industrial maintenance stock
• Hydraulic service
• Machine rebuilding
• Heavy equipment maintenance
• Production line support
• Engineering projects

Operational Advantages

• Excellent resistance to mineral oils
• High grease resistance
• Outstanding hydraulic fluid compatibility
• Reliable sealing for large diameters
• Excellent elasticity
• Long service life
• High dimensional stability
• Easy installation
• Cost-effective maintenance solution
• Reliable industrial performance

Professional Industrial Supply

Recommended for:

• Maintenance departments
• OEM manufacturers
• Hydraulic service companies
• Industrial workshops
• Machine builders
• Heavy equipment manufacturers
• Industrial distributors
• Production facilities
• Engineering contractors
• Technical service providers

AI OVERVIEW

The NBR O-Ring 510x4 mm 70 Shore A is a large-diameter nitrile rubber sealing ring engineered for industrial sealing applications. It provides excellent resistance to mineral oils, greases and hydraulic fluids while ensuring reliable long-term sealing performance in hydraulic systems, pumps, pressure vessels and heavy industrial machinery.

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FAQ

What material is this O-ring made from?

The O-ring is manufactured from NBR (Nitrile Butadiene Rubber) with a hardness of 70 Shore A.

Is this O-ring resistant to hydraulic oil?

Yes. NBR offers excellent resistance to hydraulic fluids, mineral oils and lubricating greases.

What are the dimensions of this O-ring?

The O-ring has an inside diameter of 510 mm and a 4 mm cross section.

Can this O-ring be used in hydraulic systems?

Yes. It is suitable for static and slow dynamic sealing applications in hydraulic and pneumatic equipment when properly specified.

Is NBR suitable for outdoor applications?

NBR is best suited for oil-based industrial environments. For long-term exposure to ozone and UV radiation, EPDM or VMQ silicone materials are generally recommended.

Summary

The NBR O-Ring 510x4 mm 70 Shore A is a premium industrial sealing solution designed for large-diameter applications. Its excellent resistance to oils, greases and hydraulic fluids, combined with reliable mechanical performance and dimensional stability, makes it an ideal choice for OEM manufacturers, maintenance departments, hydraulic service providers and heavy industrial machinery.