The oil seal is also known as the oil protection ring. It is irreplaceable in the rotating parts of the car. In order to use it more reasonably, Changzhou Shao Ding Sealing recommends that you should pay attention to these matters when using oil seals 1. Shaft speed: high-temperature oil seals have high revolutions due to design and structure reasons. High-speed oil seals should be used for shafts, low-speed oil seals should be used for low-speed shafts. Low-speed oil seals cannot be used on high-speed shafts, and vice versa.
2. Ambient temperature: In the case of high operating temperature, polyacrylate or silicone, fluorine, or silicone fluorine rubber should be used. And should try to reduce the oil temperature in the fuel tank. When the operating temperature is too low, cold-resistant rubber should be used.
3. Pressure: The general oil seal has poor pressure bearing capacity, and the oil seal will be deformed when the pressure is too high. Under conditions of excessive pressure, pressure support rings or reinforced pressure oil seals should be used.
4. The degree of eccentricity in the installation of the high-temperature oil seal: If the eccentricity of the oil seal and the shaft is too large, the sealing performance will deteriorate, especially when the shaft speed is high. If the eccentricity is too large, an oil seal with a "W"-shaped cross-section can be used.
5. The surface finish of the shaft directly affects the service life of the oil seal, that is, if the shaft finish is high, the service life of the oil seal will be longer.
6. Note that there should be a certain amount of lubricating oil on the lip of the oil seal.
7. Pay special attention to prevent dust from entering the oil seal. Oil seals are classified according to the rotational linear speed of the shaft. Oil seals can be divided into low-speed oil seals (less than 6m/s) and high-speed oil seals (greater than 6m/s). According to the pressure level that the oil seal can withstand, it can be divided into normal pressure type oil seal and pressure type oil seal. According to the structure and sealing principle of the oil seal, it can be divided into standard oil seal and power return oil seal. In addition, according to the materials of the oil seal components, it can be divided into skeleton type oil seals and non-frame type oil seals, spring type oil seals and springless type oil seals.
