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Crankshaft Oil Seal

VW Skoda Engine crankshaft oil seal 03P103151 03P 103 151 Manufacturer
Crankshaft Oil Seal

VW Skoda Engine crankshaft oil seal 03P103151 03P 103 151 Manufacturer

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  • VW Skoda Engine crankshaft oil seal 03P103151 03P 103 151 Manufacturer
  • VW Skoda Engine crankshaft oil seal 03P103151 03P 103 151 Manufacturer

Description

Great seals is seals manufacturer in CHINA ,mainy for oil seal ,crankshaft seal ,Automotive seal ,Industrail seal ,Motorcycle seal,Agriculture seal Export to USA,Italy ,Middest,Turkey,Canada,Spanish.Japan and so on .

As the core component of a car, the normal operation of the engine is very important. In the engine, the crankshaft seal plays a vital role. It can not only prevent the leakage of lubricating oil, but also prevent external impurities from entering the engine, so as to ensure the internal cleaning and lubrication of the engine.
Types and choices of crankshaft seals
There are many kinds of crankshaft seals on the market, including oil seals, O-rings, dust jackets and so on. Choosing the right crankshaft seal for your model is very important, poor quality seals may lead to insufficient engine lubrication, which in turn affects the service life of the engine. Therefore, when purchasing crankshaft seals, it is necessary to choose genuine products produced by regular manufacturers to ensure the safe operation of the engine.
Crankshaft seal replacement and maintenance
In order to ensure the service life of engine crankshaft seals, regular inspection and replacement are essential. In general, the replacement cycle of engine crankshaft seals is 50,000 kilometers or two years. However, in the actual use process, the replacement cycle should be properly adjusted according to the vehicle condition and driving environment. If the crankshaft seal is found to be damaged or leaking oil, it should be replaced immediately to prevent oil leakage leading to engine damage.
When replacing crankshaft seals, it is recommended to go to a regular repair shop for operation. Maintenance personnel will select the appropriate seals based on the vehicle and engine model and ensure that they are properly installed. During the replacement process, pay attention to the installation direction and position of the seal to avoid installation errors resulting in poor sealing effect.
The performance of engine crankshaft seals directly affects the running condition of the engine. In daily use, it is necessary to pay attention to the maintenance of crankshaft seals, and regularly check whether the seals are damaged or leaking oil. At the same time, pay attention to keep the engine compartment clean, avoid dust and impurities into the sealing parts, so as to extend the service life of the crankshaft seals

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What factors influence the performance of industry rubber seals

The sealing effect of the sealing ring is related to the material characteristics of the sealing ring. There is also a close influence on other factors. For example, the speed of rotation, working temperature, working pressure, working medium, etc., today I will tell you about the four factors that affect the sealing performance of the sealing ring.

First, the speed of rotation

  When the rotation speed is very low (< 0.03m/s), it is necessary to consider the smoothness of the operation of the equipment and whether the operational appears "crawling" phenomenon. When the movement speed is very high (> 0.8m/s), the lubricating oil film may be destroyed, and the oil seal is not well lubricated and frictions heat, resulting in greatly reduced life. It is recommended that polyurethane or rubber and plastic oil seal work in the speed range of 0.03m/s ~ 0.8m/s. High-speed oil seals need to put forward higher requirements for structure and material, and the speed of household appliances oil seals can reach 20000rpm. Both wear and temperature resistance need to be met, and the concentricity requirements of dynamic sealing on the installation are relatively high.  

Second, the temperature of the working environment

  Low temperature will reduce the elasticity of rubber and plastic oil seals, resulting in leakage, and even the entire oil seal becomes hard and brittle. High temperature will make the oil seal volume expansion, soft, resulting in the oil seal friction resistance increases rapidly and the pressure resistance decreases. It is recommended that the continuous operating temperature range of ordinary polyurethane or rubber and plastic oil seals be -10 ° C to +80 ° C. For the high temperature and high speed requirements of the working environment, we need to choose to use fluorine rubber and PTFE, high temperature resistance and wear resistance is better, the low temperature environment is generally to -40 degrees, and the rubber performance is tested at high and low temperatures to ensure that the product quality meets the requirements.  

Third, the working pressure of machinery

  The oil seal has a minimum service pressure requirement. Oil seals with low friction and low starting resistance should be selected for low pressure work. Below 2.5MPa, polyurethane oil seal is not suitable; High pressure to consider the oil seal pressure deformation, need to use anti-extrusion stop ring, grooving processing also has special requirements.

Fourth, the working medium

  General sealing media are gasoline, oil, diesel, grease, and some static sealing dust. In addition to selecting the working medium strictly according to the manufacturer's recommendations, it is important to keep the working medium clean. Aging or contamination of the oil will not only cause the components in the system to fail, accelerate the aging and friction of the oil seal, but also the dirt in it may scratch or embed the oil seal, making the seal fail. Therefore, it is necessary to regularly check the quality of the oil and its cleanliness, and replace the oil filter or oil according to the maintenance specifications of the equipment. The air remaining in the oil in the cylinder will be compressed by high pressure, which will cause the oil seal to burn out or even carbonize. In order to avoid this situation, exhaust treatment should be carried out at the initial operation of the hydraulic system. The hydraulic cylinder should also run at low pressure and slow speed for a few minutes to confirm that the residual air in the oil has been drained before it can work normally.