UGS d6d4240c8bed Catégorie

Bagues d'étanchéité laminaires monotour combinées

Description du produit


Application “FK3 AS” Outside clamping single rings (3 rings = 1 set) Single-wound laminar sealing rings “FK3 AS” are used as a grease seal for roller and plain bearings, and they protect, if greased, against dust entry and ambient moisture.

Les jeux de bagues combinés "FK3 ASK" (étanchéité supplémentaire du diamètre du fond de gorge) optimisent l'effet d'étanchéité grâce à l'effet labyrinthe accru. Les assemblages « FK3 AS » ou « FK3 ASK » sont normalement préférés aux assemblages « FK3 IS » ou « FK3 ISK » en raison de leur installation plus facile dans les rainures.

Depending on the applications or the technical requirements, the single-turn laminar sealing ring carriers can be manufactured from steel, cast iron, light alloys, or plastics.


The laminar sealing ring is an annular cover composed of one or several parts that is fixed to a ring or washer on the bearing, contacts another ring or washer, or forms a narrow labyrinth gap, which can prevent the leakage of lubricating oil and external intrusion.

Precautions during installation of single-turn laminar sealing ring

  1. Ensure that the edges or transition holes are chamfered and burrs are removed.
  2. Check that there is no problem with the surface of the seal.
  3. Clean up all residues left by processing.
  4. The threads of the installation path should be covered with protective sleeves.
  5. The installation surface of the sealing ring needs to be coated with lubricating grease, which is convenient for installation.
  6. Do not use sharp tools during manual installation.
  7. Ne pas trop étirer la bague d'étanchéité laminaire.


A single-turn laminar sealing ring, often simply referred to as a “laminar sealing ring,” is a specialized type of sealing component used to prevent fluid or gas leakage in various mechanical and industrial applications. These rings are designed to provide effective sealing while accommodating limited space and ensuring minimal friction. Here’s an overview of the key characteristics and applications of single-turn laminar sealing rings:

  1. Laminar Conception: Laminar sealing rings are characterized by their multi-layered, flat, or disc-shaped structure. These layers are typically made of metal or composite materials and are bonded together. The layered design allows for precise control of the sealing properties.
  2. Single-Turn: The term “single-turn” indicates that this type of sealing ring consists of only one layer, or turn. Unlike multi-turn springs, which have multiple coils, single-turn laminar sealing rings are simpler in design.
  3. Sealing Function: The primary function of a laminar sealing ring is to prevent the leakage of fluids (liquids or gases) between two mating surfaces. They create a seal by maintaining a consistent and uniform pressure against the surfaces they contact, which helps to contain the fluid or gas within the designated space.
  4. Space-Efficient: Laminar sealing rings are known for their space-efficient design. They can be used in applications where traditional seal designs, such as O-rings or gaskets, may not fit due to space constraints.
  5. Reduced Friction: These sealing rings are designed to provide a tight seal without creating excessive friction or wear between the sealing surfaces. This is especially important in applications where minimal friction is crucial.
  6. Materials: Laminar sealing rings can be made from various materials, including metal (e.g., stainless steel, titanium) or composite materials. The choice of material depends on the specific requirements of the application, including factors like temperature, pressure, and chemical compatibility.
  7. Applications:
    • Aérospatial: Laminar sealing rings are used in aircraft engines and other critical systems where reliable sealing and minimal weight are essential.
    • Automotive: Found in automotive engines, transmissions, and hydraulic systems to prevent fluid leakage.
    • Industrial Equipment: Used in pumps, compressors, valves, and hydraulic machinery.
    • Oil and Gas: Applied to equipment used in the oil and gas industry to maintain pressure integrity.
    • Chemical Processing: Suitable for sealing aggressive chemicals in industrial processes.

Dingle-turn laminar sealing rings provide effective sealing solutions in challenging environments where traditional seals may not perform optimally. Engineers and designers choose these rings based on factors such as the required pressure ratings, temperature ranges, and the specific needs of the application. They are often custom-designed to meet the unique demands of each application.

  1. Customization: Laminar sealing rings can be customized to suit the specific requirements of an application. This includes variations in size, material, and the number of layers. Customization is often necessary to ensure a precise fit and optimal sealing performance.
  2. Pressure and Temperature Range: Single-turn laminar sealing rings are designed to operate effectively across a wide range of pressures and temperatures. High-performance materials, such as stainless steel, can handle extreme conditions, making them suitable for applications in demanding industries.
  3. Maintenance and Replacement: Depending on the application, laminar sealing rings may require periodic inspection and maintenance. Over time, due to factors like wear and environmental conditions, these sealing rings may need replacement to maintain effective sealing.
  4. Advantages:
    • Space Efficiency: Ideal for applications with limited space.
    • Minimal Friction: Provide effective sealing without generating excessive friction.
    • Reliability: Offer consistent sealing performance under various operating conditions.
    • Customizability: This can be tailored to meet the specific requirements of an application.
  5. Challenges:
    • Complex Design: Customizing laminar sealing rings may require advanced engineering and manufacturing processes.
    • Cost: Higher manufacturing complexity can result in higher costs compared to standard sealing solutions.
  6. Alternative Sealing Solutions: Depending on the application’s requirements, engineers may also consider alternative sealing solutions, such as O-rings, gaskets, mechanical seals, and other specialized sealing components.

In summary, single-turn laminar sealing rings are engineered components designed to create effective and reliable seals in a wide range of industrial and mechanical applications. Their laminar structure and space-efficient design, combined with the ability to handle high pressures and temperatures, make them valuable sealing elements in critical systems where maintaining a fluid or gas barrier is essential. Customization and careful consideration of the application’s operating conditions are key to ensuring the optimal performance of these sealing rings.

  1. Installation and Maintenance: Proper installation is essential to ensure that single-turn laminar sealing rings perform as intended. Maintenance practices may vary depending on the application, but regular inspections and replacement intervals may be necessary to maintain their sealing effectiveness. Following manufacturer guidelines and industry best practices is crucial.
  2. High-Performance Applications: Single-turn laminar sealing rings are often chosen for high-performance applications where other sealing methods may not meet the stringent requirements. These applications include aerospace, defense, nuclear, and critical industrial systems where safety, reliability, and performance are paramount.
  3. Environmental Considerations: Depending on the materials used in the laminar sealing ring, they can be selected to withstand various environmental conditions, including exposure to corrosive chemicals, extreme temperatures, and high-pressure environments. Proper material selection is crucial for long-term durability.
  4. Testing and Validation: In critical applications, testing and validation of single-turn laminar sealing rings are essential to ensure they meet performance and safety standards. Testing may involve pressure tests, leakage tests, and other assessments to verify the seal’s reliability.
  5. Sealing Challenges: Single-turn laminar sealing rings are not suitable for all sealing applications. In some cases, particularly when dealing with irregularly shaped surfaces or extreme movements, alternative sealing methods or custom-designed solutions may be more appropriate.
  6. Supplier Expertise: Working with experienced suppliers and manufacturers is vital when incorporating single-turn laminar sealing rings into your designs. Their expertise can help ensure the right selection of materials, sizes, and configurations to meet your specific requirements.
  7. Sustainability: As environmental concerns grow, materials and manufacturing processes for laminar sealing rings may evolve to align with sustainability goals. This might include the use of eco-friendly materials or optimized manufacturing techniques.

Single-turn laminar sealing rings are an essential component in various industries, especially those requiring high-pressure and high-temperature sealing solutions. Their unique design, which combines space efficiency with effective sealing properties, makes them invaluable in applications where safety and performance are paramount. Proper selection, installation, and maintenance are key to ensuring their reliability in demanding environments.