The rubber-made O-rings are among the mechanical seals with an O-structure. They work well for fixed and dynamic purposes – fields with corresponding movements in components and potential friction. Rubber O-rings also bring the following advantages.
- Easy to produce
- Affordable cost
- Withstand high pressure
- Simple to mount
- Exact hardness
- Simple design
- Tightly seals
- Seats without tools required
- And more
Lindas - Professional Rubber O-Ring Manufacturer
Lindas manufactures a series of O-rings in different rubber materials，such as NBR,EPDM ,NR, SBR, Silicone(VMQ), HNBR, PU, CR ,Flurosilicone(FVMQ), Viton, FKM, ACM, AEM . We can customize their sizes according to your requirements and sealing purposes. Moreover, our manufacturing team professionally designs rubber-made O-rings to seal hydraulic pipes or tubes tightly. Aside from that, our complete machines for quality inspections guarantee the O-ring’s satisfying performance.
You can always rely on our responsible services – from designing your requested O-rings to manufacturing and delivering bulky orders on time. Please send us your drawing or details, and trust our assistance now!
How It Works
The rubber-made O-rings operate as groove seals. They will deform when pressurized. In such cases, the O-rings tightly seal different components’ surfaces. Since they are made from versatile rubber, the installed O-rings quickly adjust to the sealed structure tolerances.
Rubber O-ring will be more deformed when you put more pressure into the groove. And that results in general sealing strength improvement. However, when pressure is over or under O-ring’s capacity, it will possibly fail. That’s why choosing suitable materials, sizes, and operating conditions is essential. It helps you achieve accurate O-ring performance.
Industrial Applications of Rubber O-Rings
Numerous industries use a series of rubber-made O-rings. Consider the following fields.
Rubber O-rings are efficient for sealing that requires high compression and vibration resistance. That includes automotive, aerospace, etc.
- Oil Industry
The rubbers O-rings are suitable for dealing with chemical exposure. They are excellent for pumps, dispensers, valves, and tanks.
- Medical Field
In medical uses, the O-rings guarantee safety by adhering to strict FDA regulations. Most are for filtration, connectors, pump, and even syringe.
Sealing protects electronics from contaminants, dust, and other factors. It prevents the electronic system from damaging.
- Food Processing
The O-rings are under NSF-61 and 3-A sanitary. Safety in processing foods is secured. Rubber materials also adhere to the necessary regulations.
There are multiple rubber-made O-ring types available. The following defines some of them.
Coated O Rings
Coating the O-rings enhances their resistance to chemicals and friction. Colors are available in numerous options.
Encapsulated O Rings
The encapsulated O-ring type has a flexible covered center. Its primary function is to prevent damage caused by high heat.
Backup O Rings
They protect the O-ring seal against pressure. The backup rubber O rings also work on blocking extruding areas.
Hollow–Type O Rings
With the shape of an O-ring, hollow types have an easy compress-fill groove. That feature differs from the standard O-rings.
Square–Form O Rings
The square rubber O-rings are for leakage prevention through a four-corner cross-section form. They are highly flexible for various applications.
How to Choose the Suitable Rubber O-Rings
In selecting which material is ideal for a particular usage, it’s necessary to consider some factors. That includes the following.
- The material’s temperature resistance and limitations
- Compatibility on exposed chemicals
- Capacity to withstand applied force
- Tensile strength for material pulling
Rubber Material Selections for O-Rings
Every series of rubber materials used for O-rings brings extended benefits, depending on your necessities. Find out some of them below.
Nitrile Rubber. The nitrile rubber has excellent resistance and capacity. Also, this material type is known as cost-effective.
Temperature range:– 50°C up to 120°C（-58℉ to 248℉）
Features: abrasive resistance excellent, heat resistance good, compression set good
Neoprene Rubber. They possess extraordinary qualities that exceed them against different substances or elements.
Temperature range:-60°C to 120°C (-76℉ to 248℉)
Features: excellent abrasive resistance, good resistance to natural aging, good heat resistance, good fire resistance
Silicone. A silicone type for O-rings is in demand. The composed properties enable silicones for safe use in food manufacturing.
Temperature range:– 60°C to 280°C (-76℉to 536℉)
Features: Food-grade material, excellent temperature resistant
Polyurethane. Polyurethane has the combined presence of additives and catalysts. It enhances the material’s strength, resistance, and flexibility.
Temperature range:– 60 to 120 °C (-76℉ to 248℉)
Features: excellent abrasive resistance, good behavior of electricity
Manufacturing Processes Involve
Rubber O-rings production is possible with numerous methods. Here are a few of its procedures:
- Extrusionand then bonded to O ring