NBR Nitrile Buna Rubber ORings China Factory Suppliers High Performance Sealing

Leading China factory and suppliers of premium NBR Nitrile Buna Rubber O-Rings. Featuring 70 Shore A hardness, -40C to 120C temperature resistance, and IATF 16949 ISO 9001 certification. We provide customized special sizes and fast express delivery globally.

SupplierShijiazhuang Beike Sealing Technology Co.,Ltd.www.beikesealing.com

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About this product

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Our Premium NBR Nitrile Buna Rubber O-Rings are engineered for high-performance sealing in the most demanding industrial environments. Utilizing advanced copolymerization of acrylonitrile and butadiene, these seals offer an exceptional balance of durability and cost-efficiency, making them the industry standard for petroleum-based fluid sealing.

Specifically designed to withstand harsh chemical exposure, these O-rings provide unmatched resistance to fuel, oil, and various solvents. Whether utilized in automotive fuel tanks, hydraulic systems, or petrochemical machinery, our Nitrile seals ensure a leak-proof environment, reducing maintenance downtime and enhancing operational safety across global industries.

Detailed Parameters

Material	NBR (Nitrile Buna-N Rubber)	Size Standards	AS, BS, JIS, and Custom Sizes
Working Temp	-40℃ to 120℃	Hardness	70 Shore A
Color	Black	Certifications	IATF 16949, ISO 9001
Mediums	Petroleum Oil, Gasoline, Water, Silicone Grease	Resistance	Oil, Water, Solvent, and High Pressure
Quality Std	ASTM D2000	Application	Fuel Tanks, Hydraulic & Pneumatic Systems

Key Advantages

Superior Oil Resistance

Engineered to resist degradation when exposed to petroleum-based fuels and lubricants, ensuring long-term seal integrity.

Extended Service Life

High wear resistance and stability under pressure reduce the frequency of replacements and operational costs.

Precision Engineering

Manufactured to strict AS, BS, and JIS standards to ensure a perfect fit and zero-leakage performance.

Versatile Application

Ideal for automotive, aviation, petrochemical, and medical industries due to its robust chemical compatibility.

Cost-Effective Quality

Provides professional-grade sealing performance at a competitive price point for large-scale industrial use.

Certified Compliance

Fully compliant with IATF 16949 and ISO 9001 standards, meeting strict global quality requirements.

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Management Platforms

Raw Material Sourcing

Partnering with global leaders like Dupont and JSR to ensure stable material properties and high purity.

Precision Molding

Advanced molding technology ensures strict adherence to ASTM D2000 standards for every batch.

QC Process Control

Dedicated Quality Control Department performing rigorous checks at each production stage.

Rapid Logistics

Same or next business day shipping for in-stock items to minimize your lead times.

Customized Packaging

Offering tailored packaging solutions with detailed batch labeling and logo branding.

OEM Support

Full OEM capabilities to solve complex seal design problems for customized industrial parts.

Investment Return Comparison

Feature	Standard Rubber Seals	Beike NBR Seals
Oil Resistance	Moderate/Low	Exceptional (High AC Content)
Seal Lifespan	Frequent Replacement	Long-term Stability
Leakage Rate	Standard Tolerance	Ultra-Low / Zero Leakage
Certifications	Basic/None	IATF 16949 & ISO 9001
Maintenance Cost	High Long-term Cost	Low Total Cost of Ownership

Frequently Asked Questions

Q: What is the main advantage of NBR rubber for O-rings?

The primary advantage of NBR (Nitrile Buna-N) is its excellent resistance to petroleum-based oils, fuels, and lubricants, making it ideal for hydraulic and fuel system applications.

Q: Can you provide O-rings in non-standard or custom sizes?

Yes, while we offer standard AS, BS, and JIS sizes, we specialize in OEM and custom rubber part manufacturing based on your specific technical drawings.

Q: What is the temperature range for NBR O-rings?

Our NBR O-rings typically operate effectively between -40℃ and 120℃, depending on the specific compound and application environment.

Q: How do you ensure the quality of your rubber seals?

We follow the ASTM D2000 standard, utilize imported raw materials from JSR and Dupont, and maintain IATF 16949 and ISO 9001 certifications.

Q: What is the difference between NBR and EPDM seals?

NBR is superior for oil and fuel resistance, whereas EPDM is better for weather, ozone, and heat resistance but fails in the presence of petroleum oils.

Q: Do you provide samples for quality verification?

Yes, we offer free samples. International clients are requested to cover the freight cost, while we provide free express shipping for clients within China.