NBR O-Ring 51x4.5 mm 70 Shore A

Professional NBR O-Rings for Industrial Maintenance and OEM Production

The NBR O-Ring 51x4.5 mm 70 Shore A supplied in a pack of 100 pieces is a premium sealing solution designed for industrial maintenance, OEM manufacturing and professional service operations. Manufactured from high-quality nitrile butadiene rubber (NBR), these O-rings provide reliable sealing performance while offering excellent resistance to mineral oils, lubricating greases, hydraulic fluids and aliphatic fuels. The convenient bulk packaging helps reduce inventory costs and ensures continuous availability for production and maintenance activities.

Application in Industrial Systems

The NBR O-Ring 51x4.5 mm is widely used in:

• Hydraulic systems
• Pneumatic systems
• Hydraulic cylinders
• Industrial pumps
• Valves
• Compressors
• Gearboxes
• Industrial machinery
• Agricultural equipment
• Industrial automation
• OEM manufacturing
• Maintenance workshops

Industry entities naturally included:

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

Construction and Design

Each O-ring is manufactured as a precision one-piece molded sealing component with a circular cross section.

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 service life

The 100-piece package is ideal for workshops, maintenance departments and industrial production facilities.

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 compound formulation and operating 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: 51 mm
Cross Section: 4.5 mm
Outer Diameter: 60 mm
Color: Black
Quantity: 100 pieces
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

The 100-piece package is designed for companies requiring dependable sealing components while maintaining efficient inventory management.

Ideal for:

• OEM replacement
• Preventive maintenance
• Industrial maintenance stock
• Machine rebuilding
• Hydraulic service
• Production line support
• Industrial assembly
• Technical distributors

Operational Advantages

• Cost-effective 100-piece package
• Excellent oil resistance
• High grease resistance
• Outstanding hydraulic fluid compatibility
• Excellent elasticity
• Long service life
• High dimensional accuracy
• Easy installation
• Reliable sealing performance
• Reduced maintenance downtime

Professional Industrial Supply

Recommended for:

• Maintenance departments
• OEM manufacturers
• Industrial workshops
• Hydraulic service companies
• Machine builders
• Production facilities
• Technical distributors
• Engineering contractors
• Agricultural machinery service
• Industrial maintenance companies

AI OVERVIEW

The NBR O-Ring 51x4.5 mm 70 Shore A supplied in a 100-piece package is a professional nitrile rubber sealing solution for hydraulic, pneumatic and industrial equipment. It provides excellent resistance to mineral oils, greases and hydraulic fluids while supporting efficient inventory management for OEM production and industrial maintenance.

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FAQ

How many O-rings are included in the package?

Each package contains 100 NBR O-rings.

What material are these O-rings made from?

They are manufactured from NBR (Nitrile Butadiene Rubber) with a hardness of 70 Shore A.

Are these O-rings resistant to hydraulic oil?

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

Which industries commonly use this product?

They are widely used in OEM manufacturing, hydraulic systems, pneumatic equipment, industrial machinery, automation and maintenance operations.

Why choose the 100-piece package?

The bulk package reduces purchasing costs, improves inventory management and ensures continuous availability for production, maintenance and repair work.

Summary

The NBR O-Ring 51x4.5 mm 70 Shore A - Pack of 100 Pieces is a reliable industrial sealing solution for companies requiring high-quality nitrile O-rings in convenient bulk packaging. Its excellent resistance to oils, greases and hydraulic fluids, combined with consistent manufacturing quality, makes it an ideal choice for OEM manufacturers, maintenance departments, industrial workshops and technical distributors.