Dynamic sealing X-ring FKM Shore 76.5

Dynamic sealing X-ring FKM Shore 76.5

Dynamic sealing X-ring FKM Shore 76.5 is a commonly used sealing element used to achieve sealing between relatively moving parts.

1. Characteristics

How about dynamic sealing X-ring VS O ring?

Structural shape: There are obvious differences in the structural shape of X-rings and O-rings. The O-ring is an annular seal with a circular cross-section. The X-ring is a seal with an X-shaped cross-section, which presents two intersecting circular or oval cross-sections.

Sealing principle: The sealing principle of the O-ring is based on its circular cross-section. When compressed, the material of the O-ring fills the sealing gap and generates radial pressure, thereby achieving sealing. The X-shaped ring, through its X-shaped cross-section design, forms four sealing lips when compressed. A sealing gap is formed between these lips, which can provide a better sealing effect.

Sealing performance: Compared with O-rings, X-rings usually have better sealing performance. The design of the X-ring enables it to generate greater sealing force when compressed and provide better sealing effect during relative motion. It provides better protection against leaks and penetration and is therefore more commonly used in some more demanding applications.

Anti-torsion performance: Due to the structural characteristics of the X-ring, it usually has better anti-torsion performance than the O-ring. The shape of the X-ring allows it to better resist twisting and rolling during installation and use, providing a more stable seal.

2. Structure

Dynamic seal X-ring rubber seals are usually made of rubber material and have an X-shaped cross-section. Its construction includes two symmetrical lips that provide an excellent seal. The cross-sectional shape of an X-ring seal is similar to two O-rings stacked together to form a crossed X-shaped structure.

3. Material selection
The following factors need to be considered when selecting materials for dynamic seal X-ring rubber seals

Working medium

Depending on the medium used for the dynamic seal, select a rubber material with good chemical resistance. Commonly used materials include nitrile rubber, fluorine rubber, etc.

Dynamic sealing X-ring FKM Shore 76.5 Datasheet

Temperature range

According to the working temperature of the dynamic seal, select an appropriate temperature-resistant rubber material. Common materials include butyl rubber, silicone rubber, etc.

Friction requirements
According to the friction requirements in the dynamic seal, select a rubber material with appropriate friction characteristics to reduce friction loss and wear.

4. Application fields

Hydraulic system: X-ring seals are widely used in hydraulic systems, including key components such as hydraulic cylinders, hydraulic pumps, and hydraulic valves. They are used to seal and control liquids and ensure the normal operation of hydraulic systems.

Automotive Industry: In the automotive industry, dynamic sealing X-ring seals are used in key components such as engines, transmissions, and hydraulic braking systems. They are responsible for sealing and controlling liquids and gases, and ensuring effective sealing between relatively moving parts.

Construction machinery: Dynamic sealing X-ring seals are widely used in the field of construction machinery, such as excavators, loaders, bulldozers, etc. They are used for sealing and control of hydraulic systems to ensure the normal operation and work efficiency of construction machinery.

Aerospace: In the aerospace field, dynamic sealing X-ring rubber seals are used for sealing and controlling key components such as hydraulic systems and fuel systems. They have properties such as high temperature resistance and corrosion resistance, and can adapt to the requirements of extreme environmental conditions.

Chemical equipment: Dynamic sealing X-ring rubber seals are widely used in chemical equipment. They are often used in key parts such as pipeline connections and valve seals to ensure the safe transmission and sealing of chemical media.

What is the difference between static and dynamic sealings?

Static sealing and dynamic sealing are two different sealing methods. The difference is mainly reflected in whether there is friction and relative movement between the seal and the relatively moving parts.

Static sealing: Static sealing refers to sealing without relative movement or friction between the seal and the relatively moving parts. In static sealing applications, seals are often used to enclose or isolate two stationary components or media to prevent the leakage or entry of gases, liquids, or dusts. Static seals usually do not need to consider friction and wear issues because there is no relative movement between the seal and the opposing parts.

Dynamic sealing: Dynamic sealing refers to sealing when there is relative movement and friction between the seal and the relatively moving parts. In dynamic sealing applications, seals need to maintain effective sealing performance under conditions of relative motion to prevent leakage of liquid or gas. Dynamic seals are commonly used in hydraulic systems, engines, fluid transmission systems and other applications where moving parts need to be sealed and controlled. Due to the existence of relative motion and friction, dynamic sealing requires seals to have good wear resistance, durability and friction characteristics.

Summarize
Dynamic seal X-ring rubber seal is a commonly used sealing element, which has the advantages of double-lip sealing effect, low friction coefficient, wear resistance and durability, temperature resistance, chemical corrosion resistance, etc. It is widely used in hydraulic systems, automotive industry, engineering machinery, aerospace and chemical equipment to achieve liquid sealing and control.