Rubber X-type Seal Ring with Four-Lip Bidirectional Sealing

Characteristics
- Low Friction Resistance: A lubricating cavity is formed between the sealing lips. Compared with the O-type seal ring, it has smaller friction resistance and starting resistance. With a low friction coefficient and little wear, it can adapt to certain axial and radial displacements and complex movements.
- Good Sealing Performance: The flash is located in the concave part of the cross-section, which will not affect the sealing effect. Moreover, the cross-section is non-circular, and there will be no rolling during reciprocating motion. The four-lip sealing design enables bidirectional sealing, and the sealing performance is excellent.
- Strong Anti-twisting Performance: It can well overcome twisting. In dynamic sealing, it will not turn over or twist during reciprocating motion, and has strong anti-twisting ability.
- Wide Adaptability: The general working temperature range is from -40°C to 120°C. For special rubber materials, it can reach from -80°C to 300°C. It can work under different pressure and speed conditions.

Functions

Sealing Function
01
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
02
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
03
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
01
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
02
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.
03
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.
04

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
05
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
06
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.