Rubber X-type Seal Ring with Four-Lip Bidirectional Sealing – Quality Suppliers from China Factory

Product Features
- Low Friction Resistance: Our sealing technology incorporates a lubricating cavity between the sealing lips, resulting in significantly reduced friction and starting resistance compared to traditional O-type seal rings. With a low friction coefficient and minimal wear, these seals are designed to handle certain axial and radial displacements as well as complex movements, making them ideal for various applications.
- Exceptional Sealing Performance: The innovative design positions the flash in the concave area of the seal's cross-section, ensuring that it does not compromise sealing integrity. The non-circular cross-section eliminates rolling during reciprocating motions. Additionally, our four-lip sealing design provides excellent bidirectional sealing capabilities, guaranteeing superior performance.
- Enhanced Anti-twisting Capability: Our seals effectively prevent twisting, ensuring stability during dynamic sealing applications. The robust construction allows the sealing system to maintain its integrity without turning over or twisting during repeated motions, bolstering its anti-twisting performance.
- Versatile Adaptability: Engineered for a broad temperature range, our seals operate efficiently from -40°C to 120°C, and with specialized rubber materials, they can withstand extreme temperatures from -80°C to 300°C. These seals are suitable for various pressure and speed conditions, underscoring their versatility.
As a leading factory in China, we are dedicated to providing high-quality sealing solutions. Trust our experience as reliable suppliers to meet your sealing needs with excellence.

Product Details

Functions

Sealing Function

In both static and dynamic sealing, it prevents the leakage of working media (such as hydraulic oil, water, gas, etc.), and at the same time blocks the intrusion of external dust, impurities and other foreign matters. It buffers vibrations and impacts, compensates for minor defects on the sealing surface, and ensures the sealing and stability of the system.

Buffering and Shock Absorbing

Between some mechanical moving parts, it can play a certain buffering and shock absorbing role, reducing the impact and vibration between parts, protecting the equipment from damage, and extending the service life of the equipment.

Auxiliary Positioning

During the installation process, it can help with the preliminary positioning of parts, ensure the accuracy of part installation positions, and is beneficial to improving the assembly accuracy of the equipment.

Application Scenarios

Scenario 1: Hydraulic and Pneumatic Systems

It is used to seal reciprocating pistons, piston rods, and plungers, and can also be used for the sealing of shafts or mandrels in oscillating, rotating or screw motion, such as hydraulic cylinders, pneumatic cylinders, hydraulic pumps, and pneumatic valves.

Scenario 2

The rubber X-type seal ring is applied to key components of automobiles, such as the engine, gearbox, steering system, and braking system. In the engine, it is used for parts like the crankshaft oil seal to prevent engine oil leakage, maintain a good lubricating environment, and ensure the normal operation of the engine. In the gearbox, it is installed at positions such as the shift shaft of the transmission to seal the gear oil, ensuring smooth gear shifting and stable power transmission.

Braking System Sealing

In the braking system, the X-type seal ring at the ABS solenoid valve can maintain good elasticity and sealing performance under temperature changes ranging from -40°C to 150°C, preventing brake fluid leakage, ensuring precise control of the braking pressure during braking, avoiding wheel lockup, and enhancing braking stability. The X-type seal ring at the connection between the brake master cylinder and the pipeline can withstand the high pressure generated during braking, prevent brake fluid leakage, ensure the stable transmission of brake fluid pressure, make the braking response sensitive, and shorten the braking distance. The X-type seal ring at the sealing part of the vacuum booster effectively maintains the vacuum environment, assisting the driver in braking with ease and reducing driving fatigue.

Power Steering & Material Performance

In the power steering system, the X-type seal ring is relied on at parts such as the shaft seal and the oil inlet and outlet of the power steering pump to withstand the power steering oil and temperature changes, prevent the leakage of power steering oil, ensure that the power steering pump stably outputs high-pressure oil, and provide sufficient power assistance for steering. The X-type seal ring is applied at positions such as the piston seal and pipeline connection of the steering gear to prevent the leakage of power steering oil, ensure the stable internal pressure of the steering gear, make the steering precise and smooth, and enhance the driving experience.

The rubber X-type seal ring has good tolerance to media such as oil, water, and air. Our company's EPDM self-lubricating X-shaped seal ring has passed the following tests: resistance to heat aging at 150°C for 70 hours, resistance to DOT at 150°C for 70 hours, and resistance to VP oil at 70°C for 70 hours.

Scenario 3: Industrial Equipment

In various industrial equipment, such as the sealing parts of industrial valves, pharmaceutical equipment, food processing equipment, agricultural machinery, etc., such as the pipeline connection sealing of food and beverage filling equipment and the sealing of reaction kettles in pharmaceutical equipment.

Scenario 4: Aerospace Field

It is used for the sealing of the hydraulic system, fuel system, pneumatic system, etc. of aircraft, ensuring the safe and reliable operation of aerospace equipment in complex environments such as high altitude, high pressure, and high temperature.

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Frequently Asked Questions

What are the primary functions of these seal rings?

They serve to prevent the leakage of working media (hydraulic oil, water, gas, etc.) in both static and dynamic applications, block external dust and impurities, buffer vibration and impacts, and compensate for minor defects on the sealing surface to ensure overall system stability.

How do the seal rings provide buffering and shock absorption?

When placed between mechanical moving parts, the seal rings reduce direct impact and vibration between components, which protects the equipment from physical damage and extends its operational service life.

Where are X-type seal rings commonly used in automotive applications?

They are used in engines (crankshaft oil seals), gearboxes (shift shafts), braking systems (ABS solenoid valves, brake master cylinders, vacuum boosters), and power steering systems (steering pumps and steering gears) to prevent oil and fluid leaks.

What temperature range can the X-type seal rings withstand in braking systems?

In the ABS solenoid valve, the X-type seal ring maintains its elasticity and sealing performance under severe temperature changes ranging from -40°C to 150°C, ensuring precise control and preventing brake fluid leakage.

What test standards have the EPDM self-lubricating X-shaped seal rings passed?

They have successfully passed three rigorous tests: resistance to heat aging at 150°C for 70 hours, resistance to DOT at 150°C for 70 hours, and resistance to VP oil at 70°C for 70 hours.

In what other industries are these seal rings applied?

Beyond automotive, they are widely used in hydraulic and pneumatic systems, industrial equipment (such as food and beverage filling lines, pharmaceutical reaction kettles, agricultural machinery), and the aerospace field for fuel, hydraulic, and pneumatic sealing.