Products Rear shock absorber FKM rubber seal Description

Rear shock absorber FKM rubber seal

In automobile rear shock absorber systems, FKM rubber seals are usually used to prevent fluid leakage and ensure the normal operation of the shock absorber. FKM seals can withstand high temperatures and chemicals, providing reliable sealing performance and durability.

It is important to note that different car manufacturers and rear shock absorber models may use different materials and seal designs.

Some details about the FKM rubber sealing ring of the rear shock absorber

  • High temperature resistance: FKM rubber sealing rings have excellent high temperature resistance and can maintain their physical properties and sealing performance in high temperature environments. It can withstand operating conditions up to 200°C or higher without significant hardening, deformation or failure.
  • Oil resistance: FKM rubber seals have excellent oil resistance and can resist the erosion of many petroleum products, fuels, lubricants and other chemicals. This makes it effective in car rear shock absorbers to prevent fluid leakage and keep the system functioning properly.
  • Chemical resistance: FKM rubber seals have good resistance to a variety of chemicals, including acids, alkalis, solvents and corrosive substances. This enables it to provide reliable sealing performance in the face of complex industrial environments or special chemicals.
  • Weather resistance: FKM rubber sealing rings have excellent weather resistance and can resist the effects of ultraviolet rays, oxygen, ozone and atmospheric pollutants. This gives it long-term stable performance in applications outdoors or exposed to harsh weather conditions.
  • Sealing performance: The FKM rubber seal prevents liquid or gas from leaking out of the rear shock absorber by forming an effective seal. It provides reliable sealing performance with low compression set and low leakage rate.

In general, rear shock absorber FKM rubber seals are widely used in the automotive industry for their excellent temperature resistance, oil resistance, chemical resistance and weather resistance. It keeps the rear shock absorber functioning properly, providing reliable sealing while meeting the requirements of high temperatures, chemicals and harsh environmental conditions.

 

Products Shape Description

 

O-ring: O-ring is one of the most common sealing ring shapes and has a circular cross-section. It provides a seal between the rear shock absorber’s piston rod and barrel, preventing fluid leakage.

U-shaped sealing ring: A U-shaped sealing ring is a sealing ring with a U-shaped cross-section. It is usually used for the sealing sleeve of the rear shock absorber. It is pressed on the sleeve to achieve the sealing effect.

V-shaped sealing ring: V-shaped sealing ring is a sealing ring with a V-shaped cross-section. It is often used in the sealing sleeve of the rear shock absorber, and is sealed by pressing on the sleeve.

Gasket-shaped sealing ring: Gasket-shaped sealing ring is usually flat or ring-shaped, and is used for the connection joint of the rear shock absorber or other parts that need to be sealed.

Rear shock absorber piston seal

 

If you need to store your rear shock absorber FKM rubber seal, here are some suggestions

Temperature Control: Store FKM rubber seals in a dry, cool environment and avoid exposure to high temperatures. Temperature control is very important to maintain the performance and elasticity of rubber.

Light Protection: Avoid exposing FKM rubber seals to direct sunlight, as UV radiation may adversely affect the performance and life of the rubber material.

Dust prevention measures: Make sure the sealing ring is stored in a clean environment, away from dust and other impurities. Dust and impurities may cause damage or contamination of the sealing ring surface.

Packaging Protection: If possible, store FKM Rubber Seals in a sealed bag or airtight container to prevent the ingress of moisture and contaminants.

Stacking method: During storage, avoid excessive stacking of seals to avoid stress and deformation.

Keep dry: Make sure the storage area is kept dry and away from humid conditions to prevent the rubber material from absorbing moisture.

 

Products Rear Shock absorber pistion seals Description

 

The rear shock absorber piston seal refers to the seal located between the piston and the barrel, which is used to prevent the leakage of liquid inside the shock absorber while maintaining the sealing performance of the shock absorber. The main function of the piston seal is to ensure that the shock absorber fluid can effectively seal the seal cavity when the piston moves up and down.

Common rear shock absorber piston seals are usually made of elastic materials such as rubber or polyurethane and have the following characteristics

Sealing performance: The piston seal must be able to effectively prevent the leakage of shock absorber fluid. It should have good sealing performance to ensure that the shock absorber can maintain normal working condition during use.

Wear resistance: The piston seal needs to be able to withstand the friction and hydraulic pressure between the piston and the cylinder, so it needs to have high wear resistance to ensure reliability in long-term use.

Oil resistance: The piston seal needs to have good compatibility with the shock absorber fluid and not be affected by the shock absorber fluid. Therefore, it should have good oil resistance to prevent interaction between oil and sealing materials.

Elasticity and resilience: The piston seal needs to have a certain degree of elasticity and resilience to adapt to the up and down movement of the piston and maintain a tight seal.

High temperature resistance: Since the rear shock absorber will generate a certain amount of heat during operation, the piston seal needs to have a certain degree of high temperature resistance to ensure that it can still work normally in a high temperature environment.

 

The rear shock absorber is an important part of the car suspension system and usually consists of the following accessories

Cylinder
The barrel is the main part of the rear shock absorber, usually made of metal materials (such as aluminum alloy or steel). It is a long, hollow cylindrical structure that houses the shock absorber’s piston.

Piston
The piston is a moving part located inside the barrel, usually made of metal material. A sealed cavity is formed between it and the cylinder, and the damping force of the shock absorber is controlled by up and down movement.

Piston Rod
The piston rod is a metal rod that connects the piston to the upper part of the shock absorber. It is responsible for transmitting the motion forces and vibrations from the wheels to the shock absorbers so that they can be damped.

Seals
It is located between the piston and the barrel to prevent fluid leakage and maintain the sealing performance of the shock absorber. Common sealing ring materials include rubber, polyurethane, etc.

Damping Fluid
Shock fluid is the liquid that fills the inside of the shock absorber, usually a special oil lubricant. Shock absorbing fluid generates damping force through the movement of pistons to absorb and control vehicle vibrations and impacts.

Spring
Some types of rear shock absorbers are also equipped with springs to provide additional support and flexibility to the suspension system. Springs absorb and disperse shock and vibration during vehicle driving.

Upper and Lower Mounts
The upper and lower seats are the connecting parts of the shock absorber, connecting the shock absorber with other parts of the body or suspension system. They are usually made of metal and provide some cushioning and support.

 

Exterior black
Physical properties Rated value Unit system Test Methods
proportion 1.81 g/cm³ ASTM D792
Hardness Rated value Unit system Test Methods
Shore Hardness (Shore A) 90 ASTM D2240
Elastomer Rated value Unit system Test Methods
Tensile stress (100% strain) 13.4 MPa ASTM D412
Tensile Strength (Break) 14.1 MPa ASTM D412
Elongation (break) 110 % ASTM D412
Compression Set 1 ASTM D395
23°C, 70 hours 19 % ASTM D395
175°C, 70 hours 33 % ASTM D395
175°C, 166 hours twenty two % ASTM D395
200°C, 22 hours 18 % ASTM D395
Ageing Rated value Unit system Test Methods
Rate of Change of Tensile Strength in Air (175°C, 70 hr) -33 % ASTM D573
Rate of Change of Ultimate Elongation in Air (276°C, 70 hr) 9 % ASTM D573
Rate of Change of Durometer Hardness in Air (276°C, 70 hr) 3 ASTM D573
Change rate of tensile strength ASTM D471
23°C, 70 hr, in reference fuel B 5 % ASTM D471
  175°C, 70 hr, in Stauffer 7700 liquid 4 % ASTM D471
Change rate of ultimate elongation ASTM D471
23°C, 70 hr, in reference fuel B 6 % ASTM D471
  175°C, 70 hr, in Stauffer 7700 liquid 4 % ASTM D471
Change rate of durometer hardness ASTM D471
  23°C, 70 hr, in Reference Fuel B 0 ASTM D471
  276°C, 70 hr, in Stauffer 7700 liquid -7 ASTM D471
Volume change ASTM D471
23°C, 70 hr, in reference fuel B 1 % ASTM D471
  175°C, 70 hr, in Stauffer 7700 liquid 15 % ASTM D471
thermal performance rated value unit system
Service Temperature -29 to 232 °C
Additional information rated value unit system Test Methods
FKM
-15 °C ASTM D1329