- Moreover, an engine with a compromised valve cover gasket may experience a loss of compression, resulting in decreased performance and increased fuel consumption. In severe cases, the accumulation of oil around the spark plugs can cause misfires or even engine failure, highlighting the importance of maintaining this component.


Minor lip The minor lip prevents the entry of dust and contaminants from outside.
Lubricant can be retained in the space between the main lip and the minor lip.
These seals are more commonly used in pumps, motors both electric & hydraulic, gearboxes & occasionally dirt wipers in hydraulic cylinders. They help protect shafts and bearings from dirt and harmful contaminants entering the internals of the application that they are fitted to, as well as prevent any leaks of lubricant.
Just like pressure. The temperature capability of the oil seal shouldn’t be lesser than the temperature of the application. This is because any significant increase or even decrease in the temperature will affect the functionality of the oil seal. PTFE seals have the highest temperature capability, making them useful for applications that demand harsh weather and elements.
When selecting spark plugs for vehicles, it is essential to consider factors such as compatibility, heat range, electrode design, and material composition. High-quality spark plugs, including iridium spark plugs, are designed to withstand the demanding conditions of automotive operation, providing reliable ignition and combustion. Choosing reputable suppliers and manufacturers known for producing high-quality spark plugs is crucial to ensure the reliability and longevity of these critical components in the vehicle's ignition system.
Many – too numerous to list, covering a vast range of designs, sizes, and materials suitable for a never-ending range of applications. Some designs conform to International Standards such as BS1399 and DIN 3760 for metric sizes and seal types, but the majority have been manufactured to suit particular applications – hence the enormous selection available. This blog is intended to assist in this selection and will consider seal type, materials, and sizes.
Automotive rubber gaskets are widely used in various vehicle systems for their flexibility, resilience, and sealing properties. These gaskets are employed in applications such as engines, transmissions, and exhaust systems, providing reliable sealing solutions to prevent fluid or gas leakage. The versatility and durability of automotive rubber gaskets make them essential components in maintaining the integrity and efficiency of vehicle systems.
Before installing the oil seal, it is important to lubricate it to reduce friction and prevent damage during installation. A silicone-based lubricant is recommended for most applications. If the oil seal is to be installed in a high-temperature or high-pressure environment, a more specialized lubricant may be required.

metal oil seal.

Oil seals are used in many areas around the car.
Figure 6 shows the places where each seal type is used.
Is the seal you need not available from one of our standard ranges? No problem. We design and supply seals in any material, size and quantity - from very small to very large volumes.
Oil seals normally consist of three basic components: the sealing element, the metal case, and garter spring.
Why use NOK-CN factory-made oil seals?
2. PRESSURE: Oil Seals cannot endure a lot of pressure. You need to understand your machinery’s pressure capabilities and ensure you use the correct seal to withstand its pressure levels.