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Elastomers
NBR X Ring
nBR X Ring
Manufactured from premium Nitrile Butadiene Rubber (NBR), the X Ring offers excellent resistance to mineral oils, hydraulic fluids, and many industrial chemicals. The unique X-shaped profile reduces twisting and rolling in dynamic installations, improves sealing efficiency, and extends service life compared to conventional O-rings.
NBR X Rings are widely used in hydraulic systems, pneumatic equipment, pumps, valves, and automotive components, providing reliable sealing under moderate temperatures and pressures.
Key Features & Benefits of NBR X ring
Superior Sealing Performance
four contact points, providing a double-seal effect
Reduced Twisting and Rolling
The X profile naturally resists rolling in reciprocating applications
Excellent Chemical Resistance
NBR material ensures strong resistance Mineral oils
Lubricants
Temperature
Operating temperature: -30°C to +100°C
Low Friction & Long Service Life
The X Ring's geometry reduces friction, wear, and heat generation
Easy Installation
The symmetrical X profile allows installation in multiple orientations
Typical Specification
| Parameter | Value |
|---|---|
| Material | NBR (Nitrile Rubber) |
| Hardness | 70 ± 5 Shore A |
| Temperature Range | -30°C to +100°C |
| Maximum Pressure | Up to 30 MPa (depending on size & application) |
| Cross-Section Shape | X (Quad-Ring) |
| Installation | Static & dynamic sealing in grooves |
Structure of NBR X Ring
Choose the plan that suits you best.
Two intersecting sealing lips forming the X profile
Symmetrical design to resist twisting
Four sealing surfaces for enhanced contact
Suitable for both rod and piston sealing applications
Frequently Asked Questions
How does an X Ring differ from a standard O-Ring?
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The X Ring has an X-shaped cross-section providing four sealing surfaces, reducing twisting, improving sealing reliability, and extending service life compared to O-Rings.
Can NBR X Rings be used for high-pressure applications?
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Yes, within the recommended pressure limits (typically up to 30 MPa). For higher pressures, backup rings or alternative materials may be recommended.
What fluids are compatible with NBR X Rings?
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They are compatible with mineral oils, lubricants, water, and many mild chemicals. For strong chemicals or high temperatures, FKM or EPDM X Rings are recommended.
Are X Rings reusable?
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Generally, X Rings are designed for single-use, but careful removal without damage may allow limited reuse in low-stress applications.
Can you provide custom sizes?
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Yes. We offer custom diameters, cross-sections, and material options to meet specific industrial requirements.
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