SKU c5f1e58b9a14 Category

Double-Turn laminar sealing rings

Product Description


Application “FK6 ASD” Outside clamping double sealing ring (2 rings = 1 set) In contrast to the single wound laminar seal ring “FK 3”, “FK6” laminar sealing rings are double wound. They are used as grease seals for roller and plain bearings. They are also used as a protection seal in front of hermetically acting seal arrangements.

The “FK 6” laminar sealing rings must meet special sealing requirements against grease leakage and dust, dirt, and splash water ingress. “FK 6” laminar seal rings provide a uniform radial tension and, in contrast to the “FK 3” laminar rings, they have no axial joint gap. The combined ring sets “FK6 ASKD” (additional sealing of the groove base diameter) optimize the sealing effect due to the increased labyrinth effect.

The “FK6 ASD” or “FK6 ASKD” assemblies are normally preferred over the “FK6 ISD” or “FK6 ISKD” due to their easier ring installation into the grooves of the ring carriers. Depending on the applications or the technical requirements, the ring carriers can be manufactured from steel, cast iron, light alloy or plastics.

Precautions for installing laminar seal 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 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. Do not stretch the laminar seal ring too much.

When you are looking for a way to keep your product or machine sealed, you may want to consider using laminar sealing rings. These rings have a number of benefits that can make them the perfect choice for your needs.

What are laminar seal rings?

Laminar seal rings are rings that are used in conjunction with other sealing devices in order to prevent the escape of gas or fluid. They are typically made of a rubber or elastomeric material, and are used in a wide variety of applications. Laminar seal rings can be used to seal the gaps between two surfaces or to seal a rotating shaft.

How are laminar sealing rings used?

Laminar sealing rings are used in a variety of industries to create a tight seal between two objects. They are often used in conjunction with gaskets to create a more reliable seal. Laminar seal rings are made of a number of different materials, depending on the application. Some common materials include rubber, silicone, and neoprene.

What are the benefits of laminar seal rings?

Laminar sealing rings are a type of seal ring that is designed to reduce turbulence and fluid leakage. They are commonly used in hydraulic and pneumatic systems and can provide a number of benefits, including improved system performance, reduced fluid leakage, and reduced noise levels. Laminar seal rings are also very durable and can provide long-term performance.


“Laminar seal rings,” sometimes referred to as “laminar seals” or “laminar rings,” are specialized sealing components designed to prevent fluid or gas leakage in various mechanical and industrial applications. These rings are known for their unique construction, which provides effective sealing while accommodating limited space and ensuring minimal friction. Here are the key characteristics and applications of laminar seal rings:

  1. Laminar Structure: Laminar seal rings consist of multiple flat, concentric layers. These layers are often made of metal or composite materials. The layers are precisely engineered to create a controlled sealing effect.
  2. Effective Sealing: Laminar seal rings are designed to provide an effective seal between two mating surfaces. They work by maintaining a uniform and consistent pressure against these surfaces, preventing fluid or gas leakage.
  3. Space-Efficient Design: These seals are well-suited for applications where space is limited or constrained. Their flat, layered structure allows them to fit into tight spaces, making them an ideal choice for applications with minimal clearance.
  4. Low Friction: Laminar seal rings provide an effective seal without generating excessive friction between the sealing surfaces. This is particularly important in applications where minimizing wear and friction is critical.
  5. Materials: Laminar seal rings can be fabricated from various materials, such as stainless steel, titanium, and composite materials. Material selection is based on factors such as the application’s temperature range, pressure requirements, and the chemical compatibility of the sealing environment.
  6. Applications:
  • Aerospace: Laminar seal rings are used in aircraft engines, landing gear systems, and other critical aerospace applications.
  • Automotive: Found in automotive engines, transmissions, and hydraulic systems to prevent fluid leaks.
  • Industrial Machinery: Used in pumps, compressors, valves, and hydraulic machinery to maintain pressure integrity.
  • Oil and Gas: Applied in equipment used in the oil and gas industry to prevent leaks and maintain safe operations.
  • Chemical Processing: Suitable for sealing applications involving corrosive chemicals and demanding industrial processes.

Laminar seal rings offer effective sealing solutions for applications where traditional sealing methods, such as O-rings or gaskets, may not be suitable due to space constraints or other specific requirements. These seals are often custom-designed to meet the unique demands of each application. Proper material selection and a precise fit are key factors in their effectiveness.

In summary, laminar seal rings are engineered components designed to create reliable seals in a wide range of industrial and mechanical applications. Their layered, space-efficient design allows them to excel in situations where minimizing friction, preventing leakage, and maximizing space utilization are essential.

  1. Customization: Laminar seal rings can be customized to meet the specific requirements of an application. This includes variations in size, the number of layers, and material selection. Customization is often necessary to ensure a precise fit and optimal sealing performance.
  2. Pressure and Temperature Range: Laminar seal rings are engineered to operate effectively across a broad range of pressures and temperatures. High-performance materials, like stainless steel, can handle extreme conditions, making them suitable for applications in challenging environments.
  3. Maintenance and Replacement: Depending on the application, laminar seal rings may require periodic inspection and maintenance. Over time, due to factors like wear and environmental conditions, these seals may need replacement to maintain effective sealing.
  4. Installation and Handling: Proper installation is essential to ensure that laminar seal 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.
  5. High-Performance Applications: Laminar seal 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.
  6. Testing and Validation: In critical applications, testing and validation of laminar seal 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.
  7. Sustainability: As environmental concerns grow, materials and manufacturing processes for laminar seal rings may evolve to align with sustainability goals. This might include the use of eco-friendly materials or optimized manufacturing techniques.

Laminar seal rings are indispensable in various industries, particularly in applications where reliable sealing is crucial, space is limited, or minimizing friction is a priority. Proper selection, installation, and maintenance are vital to ensuring their long-term reliability in challenging environments. Collaborating with experienced suppliers and manufacturers is essential for selecting the right materials, sizes, and configurations to meet specific application requirements.