QUAD RINGS / X-RINGS
RINGS Quad Rings, also known as X-rings, are an upgraded version of traditional O-rings. They feature a four-lobed design that offers improved sealing performance and reduced friction. These are ideal for rotary and reciprocating motion, providing greater stability and resistance to twisting compared to standard O-rings. Bright Star’s X-rings are used in hydraulic systems, pneumatic tools, and other demanding sealing applications. Their unique geometry allows for better lubrication retention and less wear, increasing operational life and efficiency

QUAD RINGS / X-RINGS
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Polymers:
BRIGHT STAR has successfully developed formulations and rubber components based on the following polymers and has been supplying to diverse industries over the past few decades.
- FFKM/ Perfluoroelastomer
- FKM / Viton ®
- TFE/P/Aflas ®
- Silicone, Flurosilicone
- Nitrile (NBR), Carboxylated
- NBR (XNBR) / PVC Nitrile
- SBR
- EPDM, EPR
- Chloroprene / Neoprene®
- Natural / PLC / Polyisoprene
- Polyurethane
| MATERIAL | HARDNESS RANGE (SHORE A) | HIGH TEMP °C | LOW TEMP °C | STEAM |
| FFKM | 70-90 | 300 | -10 | E |
| FKM (VITON) | 50-90 | 230 | -20 | F-G |
| AFLAS | 60-90 | 200 | -10 | E |
| NBR | 20-95 | 100 | -30 | F-G |
| HNBR | 50-95 | 150 | -40 | G |
| SBR | 40-90 | 100 | -40 | P |
| EPDM | 40-90 | 150 | -40 | E |
| SILICONE | 20-80 | 200 | -60 | F-G |
| NR | 30-90 | 70 | -50 | P |
| CR | 40-90 | 100 | -40 | F |
Rating
- E = Excellent – Suitable for prolonged exposure to saturated steam at high temperatures
- G = Good – Suitable for moderate steam exposure with some limitations
- F = Fair – Can handle light or intermittent steam but not continuous service
- P = Poor – Degrades quickly in steam; not recommended
Related Products
PROFILES Rubber cords and extruded profiles are used for sealing, insulation, and cushioning in industrial and commercial setups. Available in solid and sponge forms, they are manufactured in NBR, Silicone, EPDM, and Neoprene. Bright Star offers customization in shapes, hardness, and color. Applications include door seals, weatherstrips, glazing seals, and shock-absorbing trims, all produced with precise dimensional accuracy
Rubber plugs and caps are used to seal, mask, or protect components from dust, moisture, and corrosion. They are commonly used in surface finishing, powder coating, automotive, and electronics. We offer standard and custom-molded solutions in various sizes and hardness. These components are designed for easy installation and removal, and are available in high-heat-resistant and chemical-resistant formulations
Hydraulic seals are critical for maintaining pressure in hydraulic cylinders and preventing fluid leaks. These include piston seals, rod seals, wipers, and guide rings designed to handle high pressure and dynamic motion. Manufactured using wear-resistant materials, Bright Star’s hydraulic seals serve industries such as construction, agriculture, and manufacturing. They are developed to endure extreme forces, resist extrusion, and function reliably in high-speed or high-load applications
Rubber stoppers are used to seal glass vials, infusion bottles, and reagent containers. These are manufactured in pharmaceutical-grade rubber and tested for biocompatibility and extractables. We offer sterilizable formulations and customized designs to support aseptic packaging and long shelf life
Rubber seals are used to fill gaps between two surfaces and prevent fluid leakage, dust ingress, or vibrations. These include lip seals, shaft seals, and radial seals made from materials such as NBR, Viton, and Silicone. Our seals ensure durability and chemical resistance in harsh working conditions, serving key sectors like automotive, appliances, and heavy machinery. We offer custom-molded and standard seal designs that can withstand a wide range of temperatures and media, ensuring long-term performance.
Customized rubber components are engineered for specific client applications, from sealing to vibration isolation. Bright Star Rubber Corporation specializes in tailored solutions with rapid prototyping, tooling, and material selection. We collaborate with clients across sectors to co-develop components that meet unique design, compliance, and environmental performance standards
Rubber grommets are circular components inserted into holes to protect wires or cables from abrasion. They are essential in electrical panels, automotive firewalls, and machinery housings. Our grommets are manufactured in various sizes and polymers to ensure flexibility, insulation, and durability. These components also dampen vibrations, reduce noise, and can be customized to suit different hole diameters, wall thicknesses, and environmental conditions
Canvas and Chevron seals are used in heavy-duty hydraulic applications. Chevron seals consist of a stack of multiple sealing elements that adjust to pressure variations. Canvas seals, made from rubber-coated fabric, offer enhanced pressure resistance. These seals are widely used in press machines, earth-moving equipment, and mining systems. Bright Star offers customized V-packings and fabric-reinforced seals for high-pressure systems needing excellent flexibility and sealing capability
Rubber gaskets provide a reliable seal between two surfaces in static applications. Bright Star manufactures gaskets from NBR, EPDM, Silicone, and Neoprene for applications in water pipelines, HVAC systems, and flanged joints. They offer excellent compressibility, resilience, and resistance to weathering. We offer precision die-cut and custom-molded gaskets that conform to a variety of surface geometries, even under high pressure and fluctuating temperatures.
These rubber parts are formulated with carbon or conductive fillers to safely dissipate static electricity. They are critical in electronics, explosive environments, and cleanroom operations. Bright Star’s anti-static components meet ESD and EMI standards. Our product line includes conductive mats, tubing, seals, and gaskets tailored to sensitive electronic assemblies and volatile handling areas

