🔩 Heavy-Duty Nitrile NBR O-Ring Seals
8.6mm Thick Cross Section | 328mm-988mm ID Range | Professional Grade Sealing for High-Pressure Hydraulic & Industrial Applications
🏭 Industrial Strength • 💧 High Pressure Rated
🛡️ Heavy-Duty 8.6mm Cross-Section O-Rings
Our thick 8.6mm cross-section NBR O-Ring Seals provide superior extrusion resistance and durability for demanding high-pressure hydraulic and industrial applications. Available in large diameters from 328mm to 988mm ID.
| Material |
Nitrile Rubber (NBR/Buna-N) |
| Cross Section |
8.6mm (Extra Thick) |
| Inner Diameter Range |
328mm to 988mm |
| Hardness |
70A Shore Durometer |
| Temperature Range |
-40°C to +120°C (-40°F to 248°F) |
| Color |
Black |
| Pressure Rating |
High Pressure Applications (Consult Guidelines) |
🛡️ High Pressure Resistance
8.6mm cross-section provides excellent extrusion resistance in high-pressure hydraulic systems
💪 Superior Durability
Thick cross-section and 70A hardness offer exceptional abrasion and tear resistance
🛢️ Excellent Fluid Compatibility
Superior resistance to petroleum-based oils, hydraulic fluids, and lubricants
🌡️ Wide Temperature Performance
Reliable sealing from -40°C to +120°C for various industrial environments
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Hydraulic Systems: High-pressure cylinders, hydraulic presses, industrial machinery, power units
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Heavy Equipment: Construction machinery, agricultural equipment, mining systems, excavators
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Industrial Pumps: High-pressure pumps, compressor systems, fluid transfer equipment
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Automotive Systems: Heavy-duty vehicle hydraulics, suspension systems, power steering
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Manufacturing Equipment: Injection molding machines, press equipment, industrial valves
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Water Systems: Large diameter plumbing, irrigation systems, water treatment equipment
📝 Professional Installation Tip
For high-pressure applications with these Heavy-Duty O-Rings, ensure proper groove design with adequate clearance. The 8.6mm cross-section requires an appropriate gland design to prevent extrusion. Always confirm size compatibility before installation and use proper installation tools to avoid twisting.
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Free Shipping on Orders Over $75
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30-Day Satisfaction Guarantee
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Industrial Grade Quality
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Technical Support Available
Q: Why choose 8.6mm cross-section O-rings over thinner options?
The 8.6mm cross-section is specifically designed for high-pressure applications where standard, thinner NBR O-Ring Seals might extrude or fail. The thicker cross-section provides greater resistance to extrusion under pressure, improved durability in dynamic applications, and better compensation for gland imperfections. This makes them ideal for hydraulic systems, heavy machinery, and industrial equipment operating at elevated pressures.
Q: What pressure can these heavy-duty O-rings handle?
Our 8.6mm NBR O-rings with 70A hardness are suitable for high-pressure applications, typically handling pressures up to 5000 psi (345 bar) or higher, depending on groove design, clearance, and operating temperature. The thick cross-section provides excellent extrusion resistance. For specific pressure ratings in your application, consult our technical guidelines or contact our engineering support team with your system details.
Q: How do I properly install thick cross-section O-rings?
Installing 8.6mm Heavy-Duty O-Rings requires proper technique to avoid twisting or damaging the seal. Use O-ring installation tools, lubricate with compatible fluid, and avoid stretching beyond recommended limits. For large diameters, use a rolling or spiraling technique rather than stretching. Ensure the installation path is free of sharp edges, and always verify the O-ring sits properly in the groove without twists before final assembly.
Q: Are these suitable for hydraulic fluid applications?
Yes, these NBR O-rings are excellent for hydraulic applications. NBR material offers outstanding resistance to petroleum-based hydraulic fluids, including mineral oils, synthetic hydraulic fluids, and biodegradable options. The 8.6mm cross-section provides the necessary extrusion resistance for high-pressure hydraulic systems commonly found in industrial machinery, construction equipment, and manufacturing systems.
Q: Do you offer technical support for gland design?
Yes, we provide complimentary technical support for gland design and O-ring selection. Our engineering team can assist with groove design recommendations, clearance calculations, and material selection for your specific application. For custom requirements or complex applications, we offer detailed technical consultation to ensure optimal sealing performance. Contact our technical support with your application details for personalized assistance.
🔧 Get Heavy-Duty Industrial O-Ring Seals Today!
Premium quality Heavy-Duty NBR O-Ring Seals with 8.6mm thick cross section, perfect for high-pressure hydraulic systems and industrial equipment. Available in large diameters from 328mm to 988mm ID.
Free shipping on orders over $79 • 30-day return policy • Bulk discounts available
