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8.6mm Cross Section | 19mm-982mm ID Range | Professional Grade Sealing Solutions
| Material Type | Nitrile Rubber (NBR/Buna-N) O-Rings |
|---|---|
| Color | Black |
| Hardness | 70A Shore Durometer |
| Temperature Range | -40°C to +120°C (-40°F to 248°F) |
| Cross Section | 8.6mm (Heavy-Duty Thickness) |
| Inner Diameter Range | 19mm to 982mm (Multiple Sizes Available) |
| Pressure Rating | High Pressure Applications (Up to 5000 psi) |
Our heavy-duty NBR O-rings are perfect for:
📝 Professional Tip: For high-pressure applications, 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.
The 8.6mm cross-section is specifically designed for high-pressure applications where standard, thinner O-rings 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.
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.
Installing 8.6mm 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.
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.
We offer a comprehensive range of sizes from 19mm to 982mm inner diameter, all with the heavy-duty 8.6mm cross-section. This wide range ensures you can find the perfect seal for various industrial and hydraulic applications.
Get professional-grade sealing performance with our heavy-duty NBR O-ring seals. Perfect for industrial, hydraulic, and automotive applications.
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