- Another important function of the oil seal is to keep contaminants out of the engine. Dirt and debris can enter the engine through various pathways, including the air intake and exhaust systems Dirt and debris can enter the engine through various pathways, including the air intake and exhaust systems
Dirt and debris can enter the engine through various pathways, including the air intake and exhaust systems Dirt and debris can enter the engine through various pathways, including the air intake and exhaust systems
wheel oil seal. If these contaminants reach the oil seal, they can cause damage and reduce its effectiveness. To prevent this, the oil seal is designed to be resistant to these contaminants, ensuring that the engine remains clean and free from damage.
Another common cause of black spark plugs is engine oil leakage. If oil is leaking into the combustion chamber, it can cause the spark plugs to become fouled with a black, sooty residue. This can lead to misfires and engine hesitation, as well as increased fuel consumption. It is important to address any oil leaks promptly and replace the spark plugs if necessary.
The shaft surface to be in contact with the lip should be finished to
0.1 to 0.32 μmRa and 0.8 to 2.5 μmRz
and the lead angle to no greater than 0.05°. (There is a risk that the lead marks will impede the sealing performance of the oil seal: see Figure 5.)

car engine gasket.
The basic principle of sealing is straightforward – the flexible lip is held against the rotating part (usually the shaft) whilst the casing (or O.D.) is pressed into the housing or bore and holds the seal in place. The sealing lip needs some form of lubrication to avoid overheating and is usually energized by means of a garter spring.


VMQ (silicone)
Update: Leakage-free
Agricultural vehicles including Iveco, Opel, Massey Ferguson and Fiat
Oil seals are typically classified based on their sealing capabilities, with common types including lip seals, mechanical seals, and hydraulic seals. Lip seals are the most basic type, consisting of a flexible lip that seals against the shaft. Mechanical seals use sliding or rotating components to create a seal, while hydraulic seals are designed for high-pressure applications.
Standard 3760/3761


What are Oil Seals?
6. Ensure that the oil seal solidifies
Our rubber seals are used in the following industries:

12 22 5 oil seal. Its ability to resist wear and tear ensures that machinery stays operational for longer periods without the need for frequent maintenance.
The group of oil seals used in dynamic applications include radial shaft seals that seal a rotating shaft around its circumference. They are also known as lip seals, but in this blog we will use the term oil seals.
To increase the pressure around the shaft and maintain the seal’s integrity, certain lip seals have an extra spring looped into the flexible rubber part.