Professional rubber compounding & rubber seal support - Linde logo

Rubber sealing grommets

A rubber sealing grommet is a seal made of rubber material that is commonly used to provide a static or dynamic seal. Rubber sealing grommets are usually made of rubber materials, such as nitrile butadiene rubber (NBR), ethylene propylene rubber (EPDM), silicone, etc. Rubber sealing grommets are generally ring-shaped, with cross-sectional shapes such as circular, square, and V-shaped. They are simple in structure and usually consist of a rubber seal, sometimes combined with a support of metal or other materials. The main function of the rubber sealing grommet is to provide a sealing effect and prevent the leakage of liquid or gas. They can be used for static sealing, such as filling gaps, pipe connections, valve seals, etc.; they can also be used for dynamic sealing, such as piston rod seals, shaft seals, etc. Rubber sealing grommets are widely used in the automotive industry, machinery and equipment, electronic products, aerospace and other fields. They are used for sealing pipes, valves, pistons, shafts and other components to ensure reliable operation of the system under various working conditions.

Air hole stopper rubber grommet

Air hole stopper rubber grommet

Air hole stopper rubber grommets are rubber seals used to protect air holes or through-holes in equipment or products. They are made of soft rubber and have perforations to prevent moisture, dust, and contaminants from entering. They offer reliable and adaptable sealing, as they are weather- and UV-resistant and flexible. These seals are commonly used in industrial, automotive, household, and electronic equipment, providing dependable sealing and protection. They are subject to various certification standards, including RoHS, REACH, UL, and IP. Their application across various industries ensures their reliability and adaptability.

Closed Back Rubber Grommet

Closed Back Rubber Grommets

Closed back rubber grommets are a device used to connect and secure objects, usually made of rubber material. This grommet is elastic and can adapt to objects of different shapes and sizes, and can provide enough friction and holding power to ensure the stability and safety of the object.

automotive rubber shock absorbers

Automotive rubber shock absorbers

Rubber shock absorbers have a wide range of applications in the automotive industry, mainly used to absorb and cushion the vibrations generated by vehicle movement, thereby improving the comfort and stability of the vehicle. The main material of rubber shock absorbers is rubber, and its unique elasticity and durability make it an ideal shock absorber material. This article will give a detailed introduction to automotive rubber shock absorbers, including their working principle, application, material selection and development trends.

Car wiring harness

The car wiring harness is essential for protecting wires and cables from mechanical damage, chemical corrosion, and high temperatures. It can withstand various environments, including 120°C and 150°C, and is suitable for both moving and static joints. The harness sheath ensures protection from vibration, friction, and corrosion, prolonging the wires’ lifespan. It also facilitates the management of different wire harnesses, improves waterproof levels, enhances aesthetics, and improves security, reducing vehicle failure rates and preventing short circuits and worm wires.

Protective rubber mask Dust

Protective rubber mask dust

Rubber protective mask dust is a safety tool for electric hammer impact drills, protecting employees and users from dust and debris. It has dustproof properties and is crucial in industries like building and interior design. Certifications include CE, ANSI, ISO, and OSHA. The mask provides dust protection, safety, and a clean working environment. It is durable and easy to use, making it a reliable and reliable safety tool.

silicone bellows 2

Silicone Bellows

Product name : Silicone Bellows

Product material : Silicone /Custom

Hardness (Shore A) : 20 to 90

Applicable temperature °C : -60 to 300

Certification : ISO: 9001, ISO: 14001, IATF: 16949

side cover grommet

side cover grommet kit

A side cover grommet kit is a rubber component used in automobiles, motorcycles, and other mechanical equipment. It is waterproof, dustproof, and shock-absorbent, and meets ISO 9001, RoHS, REACH, ASTM, and UL certification standards. The rubber material provides good sealing performance, prevents contaminants from entering the device, and provides a smoother operating environment. It also extends the life of the equipment by reducing wear and failure and increasing reliability.

Black Rubber Grommets

Black Rubber Grommets

Black rubber grommets are used to protect cables, lines and wires from scratches on rough metal surfaces. Can suppress vibration and provide sealing function under the important engine hood. Its practicability is very high, so it is widely used in the automobile and motorcycle industry.

auto rubber door grommet 2

Auto Rubber Door Grommet

Product name : Auto Rubber Door Grommet

Product material : Rubber/Silicone /Custom

Hardness (Shore A) : 20 to 90

Applicable temperature °C : -50 to 140

Certification : ISO: 9001, ISO: 14001, IATF: 16949

A rubber grommet is an annular seal made of rubber material used to provide sealing properties at joints or seams. It is usually made of rubber materials (such as NBR, EPDM, silicone, etc.) and has good elasticity and durability.

Structure

Rubber sealing grommets are usually ring-shaped and constructed of soft rubber material. Its inner and outer diameters are adapted to the dimensional requirements of the connection points or seams.

Elements of structure

  • Cross-sectional shape: The cross-sectional shape of the rubber sealing grommet determines its sealing performance and scope of application. Common cross-sectional shapes include round, square, V-shaped, U-shaped, X-shaped, etc. Different shape designs enable rubber sealing grommets to adapt to different sealing needs and application scenarios.
  • Material selection: Rubber sealing grommets are usually made of rubber materials, such as NBR (nitrile butadiene rubber), EPDM (ethylene propylene rubber), silicone, etc. The selection of materials depends on the requirements of the application environment, such as oil resistance, high temperature resistance, chemical corrosion resistance, etc. Rubber materials have good elasticity and sealing properties and can adapt to different working conditions.
  • Elastic properties: The elastic properties of rubber sealing grommets are key to their sealing performance. They have a certain compression deformation ability and can adapt to different sizes and shapes during installation to achieve a reliable sealing effect. The elastic properties of rubber sealing grommets also resist the effects of external factors such as vibration, shock and temperature changes.
  • Dimensions and Dimensional Tolerances: Dimensions and dimensional tolerances of rubber sealing grommets are important factors in ensuring that they match the connecting components and install a seal. Appropriate size and tolerance design can ensure that the sealing grommets fit tightly with the connecting parts during installation to achieve an effective sealing effect.
  • Surface treatment: In order to improve the sealing performance and durability of rubber sealing grommets, special treatments are often performed on their surfaces. This may include the application of special lubricants, treatments to increase wear resistance, or anti-corrosion treatments. Surface treatments improve sealing grommet life and performance.

Materials

Rubber sealing grommets can be made from different types of rubber materials to meet different application needs. Common materials include NBR (nitrile butadiene rubber), EPDM (ethylene propylene rubber), silicone, etc. Each material has different properties, such as oil resistance, high temperature resistance, weather resistance, etc., and can be selected according to specific needs.

Application

Rubber sealing grommets are widely used in various industries and fields, including automobiles, aerospace, machinery and equipment, electronic products, etc. They are used to seal connection points to prevent leakage or infiltration of liquids, gases or dust, ensuring the normal operation of the system.

Automotive Industry

Rubber sealing grommets play an important role in the automotive industry. They are used for sealing of engine systems, such as cylinder head seals, crankshaft seals, piston seals, etc. At the same time, rubber sealing grommets are also used to seal various pipeline connection points such as automobile hydraulic systems, braking systems, air conditioning systems, etc.

Mechanical equipment

In the field of mechanical equipment, rubber sealing grommets are widely used in sealing various rotating shafts and connection points. They can be used in pumps, valves, transmissions, hydraulic cylinders and other equipment. The sealing properties of the rubber sealing grommets prevent liquid or gas leakage and protect the equipment from the external environment.

Aerospace industry

In the aerospace industry, the application of rubber sealing grommets is very important. They are used for sealing of aerospace engines, such as turbine seals, gas turbine seals, etc. Rubber sealing grommets are also used in key locations such as door sealing and connection point sealing of aerospace vehicles to ensure the safety and normal operation of aerospace vehicles.

Electronics

Rubber sealing grommets also play an important role in the manufacturing of electronics. They are used to seal mobile phones, tablets, cameras and other devices to prevent the entry of dust and moisture and protect the normal operation of internal electronic components. Rubber sealing grommets are also used in battery sealing, interface connections and other applications.

Medical equipment

In the field of medical equipment, rubber sealing grommets are widely used in the sealing and connection of medical equipment. For example, they are used for sealing surgical instruments, sealing medical syringes, etc. Rubber sealing grommets have good chemical resistance and biocompatibility, and can meet the special requirements of medical equipment.

Installation method

Rubber sealing grommets can be installed directly at the connection point, usually by slipping it over the outside edge of the connection point or seam. Its elasticity provides a tight seal, ensuring the reliability and tightness of the connection point.

Category

  1. O-ring: O-ring is the most common and widely used type of rubber sealing grommet. It is annular in shape with a circular cross-section and has good sealing performance. O-rings are widely used in various static and dynamic sealing applications, such as pipe connections, valves, pistons, etc.
  2. X-ring: An X-ring is a rubber sealing grommet with a cross-section shape. It is commonly used in high-pressure sealing applications and can provide better sealing performance and compression resistance. X-type sealing rings are commonly used in high-pressure sealing fields such as hydraulic systems and pneumatic systems.
  3. V-shaped sealing ring: V-shaped sealing ring is a rubber sealing grommet with a V-shaped cross-section. It is designed to provide good sealing properties and resistance to compression when compressed. V-shaped sealing rings are commonly used in sealing applications with rotating or reciprocating motions such as shaft seals and piston seals.
  4. U-shaped sealing ring: A U-shaped sealing ring is a rubber sealing grommet with a U-shaped cross-section. It is often used to seal the connection points of liquids or gases in pipes or containers. U-shaped sealing rings are widely used in pipeline systems, storage tanks, valves and other fields.
  5. Other special-shaped sealing rings: In addition to the common types mentioned above, there are also some special-shaped rubber sealing grommets, such as square sealing rings, Y-shaped sealing rings, etc. They have special functions and advantages in specific application scenarios.

Tell me what you need