Automobile automatic transmission rubber seal

Automobile automatic transmission rubber seal

Automobile automatic transmission rubber seal

1. Front Axle Seal: The front axle seal is located at the front of the automatic transmission and is used to seal the gap between the front output shaft and the drive shaft. Such seals are usually made of rubber materials, such as nitrile rubber or fluoroelastomer, to provide good sealing performance and durability.
2. Rear Axle Seal: The rear axle seal is located at the rear of the automatic transmission and is used to seal the gap between the rear output shaft and the drive shaft. Similar to the front shaft seal, the rear shaft seal is also usually made of a rubber material such as nitrile rubber or fluoroelastomer.
3. Turbine Seal: Turbine Seal is located between the torque converter and the automatic transmission and is used to seal the gap between the input shaft and output shaft of the torque converter. This kind of seal needs to have high oil resistance and temperature resistance, so oil-resistant rubber materials such as nitrile rubber or fluorine rubber are often used.
4. Shift Lever Seal: The shift lever seal is located in the seat groove of the automatic transmission shift lever and is used to seal the inlet and outlet of the shift lever. Such seals are usually made of materials such as nitrile rubber or silicone to provide good sealing performance and wear resistance.

The front shaft seal of automobile automatic transmission usually uses nitrile rubber (Nitrile Rubber, referred to as NBR) as the sealing material. Nitrile rubber is a synthetic rubber that has good oil, heat and abrasion resistance, making it ideal for seals in automotive drivetrains.

The sealing function of the front shaft seal is to prevent the leakage of lubricating oil between the front output shaft and the drive shaft of the automatic transmission. NR rubber seals usually take the form of rubber O-rings or oil seals, and achieve sealing effects by compressing and filling the sealing gap.

NR rubber has good oil resistance and can work in a lubricating oil environment for a long time without swelling, hardening or failure. In addition, NR rubber also has good elasticity and wear resistance, and can adapt to the high-speed rotation and friction during transmission operation. These properties make NR rubber one of the commonly used materials for automobile front axle seals.

FKM is a commonly used rubber material, the full name is fluoroelastomer (Fluoroelastomer), also known as FPM. FKM rubber seals are widely used in automobile automatic transmission rear shaft seals.

The function of the rear shaft seal is to seal the gap between the rear output shaft and the transmission shaft of the automatic transmission to prevent lubricating oil from leaking. FKM rubber seals are favored for their oil, temperature and chemical resistance. It has good oil resistance and can work for a long time in the environment of lubricants and lubricants without swelling, hardening or failure. In addition, FKM rubber also has excellent high temperature resistance and can maintain the material’s elasticity and sealing properties under high temperature conditions. It also has good chemical resistance and can resist the erosion of various chemical media.

By using FKM rubber seals, the rear shaft seal of automobile automatic transmissions can provide reliable sealing performance to ensure that lubricating oil does not leak during transmission operation, while being able to withstand the effects of high temperatures and chemical media.

Normally, the impeller seal rubber seal in automobile automatic transmission uses nitrile rubber (Nitrile Rubber, referred to as NBR) as the sealing material.

The impeller seal is located between the torque converter and the automatic transmission. Its function is to seal the gap between the input shaft and the output shaft of the torque converter to prevent lubricating oil from leaking. NBR rubber seals are widely used in this position because NBR rubber has good oil resistance, heat resistance and wear resistance.

NBR rubber has excellent oil resistance and can work in a lubricating oil environment for a long time without swelling, hardening or failure. In addition, NBR rubber also has good heat resistance and can maintain the material’s elasticity and sealing properties under high temperature conditions. It also has high wear resistance and can adapt to the high-speed rotation and friction of the transmission operation.

By using NBR rubber seals, the pulsator seal of automobile automatic transmission can provide reliable sealing performance to ensure that the lubricating oil between the input shaft and output shaft of the torque converter does not leak, while being able to withstand the influence of high temperatures and oil products. .

• Tightness test: This is one of the most important functional tests. The sealing test is designed to verify the sealing performance of the rubber seal under the required working pressure to ensure that it can effectively prevent the leakage of fluid or gas. Common tightness testing methods include pressure testing, vacuum testing, and liquid immersion testing.
• Oil resistance test: Automobile automatic transmission rubber seals need to work in an environment of lubricating oil or transmission fluid, so oil resistance testing is necessary. This test evaluates the chemical stability and physical properties of the seal in different types and concentrations of lubricants to ensure that it can withstand contact with lubricants for extended periods of time without swelling, hardening or failure.
• Temperature resistance test: Automobile automatic transmission rubber seals need to be able to maintain their elasticity and sealing performance in high temperature environments. The temperature resistance test evaluates the deformation, hardening, embrittlement and other conditions of the seal under high temperature conditions to determine whether it can adapt to the temperature requirements of the transmission.
• Wear resistance testing: Seals are affected by friction and wear in transmissions, so wear resistance testing is necessary. This test evaluates the wear performance and life of seals by simulating friction and wear under actual operating conditions.
• Elastic recovery test: Seals need to have a certain degree of elasticity to ensure that they can return to their original state and maintain effective sealing after compression or deformation. The elastic recovery test is used to evaluate the recovery performance of seals after being compressed or deformed.

Dimensions and drawings: Provide detailed dimensions and drawings of transmission rubber seals, including inner diameter, outer diameter, thickness, geometry, etc.

Operating Environment and Conditions: Provide detailed information about the environment and conditions in which the transmission rubber seal will operate. This includes lubricant type, temperature range, pressure requirements, vibration conditions, operating speed, etc.

Material Requirements: Provide guidance or requirements on material selection based on your needs and application requirements. For example, you can specify nitrile rubber (NBR), fluoroelastomer (FKM), or other specific materials.

Performance Requirements: Provides information on seal performance requirements based on your application needs. This may include oil resistance, temperature resistance, chemical resistance, sealing performance requirements, etc.

Order quantity and delivery requirements: Clearly specify the quantity and delivery requirements you wish to order, including delivery time, packaging requirements, etc.