Leather is probably the oldest of the lip materials still in common use, but the move towards mass production methods has seen a massive increase in the development of synthetic rubbers which lend themselves to accurate and repeatable injection and compression moulding. Nitrile (NBR) is still by far the most common elastomer for “normal” use, whilst Viton® (FKM/FPM) is rapidly replacing Polyacrylate (ACM) and Silicone (VMQ) for high-temperature applications. Viton® also has high resistance to abrasion and chemical attack making it a preferred elastomer. Recent developments in the use of PTFE for Rotary shaft seals has caused widespread interest particularly for high-speed shaft rotation or poor lubrication applications.
- In conclusion, the blue valve cover gasket, though a diminutive component, holds paramount importance in the upkeep and performance of an engine. Its role in preventing oil leaks not only ensures the engine runs smoothly but also protects against potential damage and hazards. Recognizing its significance and ensuring its proper maintenance is a testament to prudent vehicle ownership and can contribute to the long life of an engine.
- In conclusion, the significance of steering oil seals in automotive engineering cannot be overstated. They are the unseen heroes that safeguard the power steering system, ensuring a smooth driving experience. Their proper functioning is vital for not just the vehicle's performance but also for safety, as a compromised steering system can directly impact a driver's ability to control the car. Therefore, understanding and appreciating the role of these seals is essential for every car owner and mechanic alike.
- characteristics!
Choosing the correct oil seal application
Figure 3: Sealing function of main lip radial load
* KOYO is a registered trademark of JTEKT.
Figure 4 shows the features of a JTEKT oil seal.
Rotary Wheel Of Auto Parts
3. Seal types and numbering system
Failure Modes of Oil Seals
What are Oil Seals and the different types?

silicone rubber gasket. This resistance makes them suitable for use in industries where exposure to harsh chemicals is common, such as in the chemical processing, pharmaceutical, and food and beverage industries. The inert nature of silicone rubber also prevents it from reacting with the substances it comes into contact with, ensuring a long-lasting and reliable seal.

Does it mean the seal stops the leakage completely? Well, on the practical grounds yes because there is no ‘visible leakage’.
VMQ (silicone)
Selecting the Right Spark Plugs for Motor Vehicles
The other way oil seals work is by stopping outboard materials that can damage the machine or contaminate its lubricant. The outboard materials that the oil seal will need to stop depend on the application. However, the most common kinds are dirt, moisture, and the particles produced during manufacturing.
Another important factor to consider when choosing spark plugs for your MK7 GTI is the electrode material. The electrode material can vary between spark plugs and can have an impact on the performance of your engine. Copper, platinum, and iridium are common electrode materials used in spark plugs. Iridium spark plugs are often preferred for performance cars like the MK7 GTI due to their durability and ability to maintain a stable spark.