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NBR (Buna-N) O-Rings: High-Performance Nitrile Sealing Solutions for Demanding Industrial Environments
Precision-Engineered NBR O-Rings: Your Trusted Partner for Industrial Sealing
For industrial procurement specialists, engineers, and equipment manufacturers seeking robust and reliable sealing solutions, OringWorld NBR (Buna-N) O-Rings represent the pinnacle of performance. We specialize in manufacturing high-precision nitrile seals meticulously engineered to comply with stringent international standards, including ASTM D2000, AS 568, and ISO 3601.
- Superior Resistance: Excellent performance against petroleum-based oils, fuels, and lubricants.
- Global Standards Compliance: Manufactured to ASTM D2000 / SAE J200, AS 568, and ISO 3601 specifications.
- Customization Capabilities: Available in a wide range of hardness (40-90 Shore A) and custom dimensions.
- Efficient Supply Chain: Rapid prototyping, extensive inventory, and global logistics support.
Optimize your procurement with factory-direct pricing and dedicated engineering support.
OringWorld’s Advanced NBR Sealing Technology
At OringWorld, we combine cutting-edge material science with advanced manufacturing processes to produce NBR (Nitrile Butadiene Rubber) O-Rings that offer an optimal balance of mechanical strength, chemical stability, and cost-effectiveness.
Tailored Formulations
Standard, high-nitrile, and specialized low-temperature NBR compounds to precisely match your fluid compatibility requirements.
Precision Manufacturing
State-of-the-art compression and injection molding achieve exceptionally tight tolerances and flash-free finishes.
Mechanical Durability
High abrasion resistance and excellent tear strength, ideally suited for both static and dynamic sealing applications.
Technical Specifications for NBR O-Rings
| Property | Value / Range | Relevant Standard |
|---|---|---|
| ASTM D1418 Designation | NBR | – |
| ASTM D2000 / SAE J200 Type | BF, BG, BK, CH | – |
| Hardness Range | 40 – 90 Shore A | ASTM D2240 |
| Standard Temperature Range | -40°C to +120°C | – |
| Tensile Strength | > 14 MPa (2031 psi) | ASTM D412 |
| Elongation at Break | ≥ 250% | ASTM D412 |
| Compression Set | Excellent | ASTM D395 |
Answers to Common Queries about NBR O-Rings
What is the primary advantage of NBR O-Rings compared to other elastomer types?
NBR’s foremost advantage lies in its exceptional resistance to petroleum-based oils, fuels, and lubricants, coupled with a favorable cost-to-performance ratio, making it a highly economical choice for many industrial applications.
How does the Acrylonitrile (ACN) content influence performance?
Higher ACN levels (e.g., 40-50%) enhance resistance to oils and fuels but typically reduce low-temperature flexibility. Conversely, lower ACN content (e.g., 18-30%) improves flexibility at colder temperatures but decreases oil resistance.
Do NBR O-Rings offer resistance to UV radiation and Ozone exposure?
Standard NBR compounds generally exhibit poor resistance to ozone and ultraviolet (UV) radiation. For applications exposed to these elements, we recommend specifying NBR compounds with added anti-ozonants or considering alternative elastomers such as EPDM or Viton® (FKM).
Can NBR O-Rings be safely used with brake fluids?
No, standard NBR is not compatible with glycol-based brake fluids. For sealing applications involving brake fluids, EPDM (Ethylene Propylene Diene Monomer) is the recommended elastomer.