- Finally, the brand of the spark plug can also have an impact on its price. Some brands are known for producing high-quality spark plugs at reasonable prices, while others may charge a premium for their products.
- Shaft oil seals are typically made of rubber, metal, or a combination of both materials. The seal is located on the outer edge of the shaft, where it comes into contact with the housing. The design of the seal is crucial to its effectiveness, as it needs to be able to withstand the friction and heat generated by the rotating shaft.
The purpose of the oil seals is
* KOYO is a registered trademark of JTEKT.
Its sealing edge comes in full contact with the shaft surface in order to provide excellent sealing performance.
(See Figure 3.)
ERIKS type R (type A according to the DIN standard) is identical in shape to type M, but has a rubber outer case with metal reinforcement on the inside. The rubber creates a good seal in the housing, even if the housing has suffered minor damage or is not in its best condition for other reasons. The RST version has a dust lip. These types are often chosen to replace a type with a metal outer case because they are easier to install and can cope with minor damage to the groove, such as scratches.


2. Temperature: Just like pressure, it is very important to choose the right seal that can withstand extreme heat or cold temperatures, depending on the operating environment of your application.
Gasket Valve Cover: Selecting Quality Components
Air side face The oil seal surface vertical to the center line of the shaft on the side that does not come in contact with substances to be sealed is called the back face.
Choosing the correct type for your application
Nitrile Butadiene Rubber (NBR, nitrile)
Where to buy oil seals in the UK
2. Temperature: Just like pressure, it is very important to choose the right seal that can withstand extreme heat or cold temperatures, depending on the operating environment of your application.


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