- In conclusion, metric oil seals are an essential component in machinery and equipment to prevent oil leakage and maintain operational efficiency. These seals are available in a variety of materials and sizes to suit different applications and operating conditions. By choosing the right seal and ensuring proper installation and maintenance, businesses can protect their equipment and maximize performance.
Maintenance and Inspection of Oil Seals
What are Oil Seals and how do they work?

Oil leak: the most frequent failure of the oil seal


NBR, also known as nitrile rubber or nitrile, is the most popular material for an oil seal because of its good resistance to many oils and greases, such as mineral grease and hydraulic oil. Depending on their composition, synthetic oils and greases, such as those based on glycol, can damage NBR rubber materials. Depending on the amount of glycol, a PTFE lip seal may be the best choice. NBR is also unable to cope with contact with acids and solvents. The rubber is suitable for oil and grease at temperatures from -35 °C to 100 °C.
Figure 4: JTEKT oil seal features
Heat resistance

c15 valve cover gasket. If dirt or debris were to enter the engine, it could cause damage to sensitive components such as the valves and camshafts. By maintaining a tight seal with the valve cover gasket, you can keep your engine clean and free from contaminants.
Selecting Quality Rubber Valve Cover Gaskets
Meanwhile, rubber-cased oil seals are used under conditions where a metal-cased seal can fail (for example, because of thermal expansion). Unlike the metal-cased type, these seals do not rust. Moreover, they can seal a lightly damaged housing better than metal-covered seals since, in high temperatures, rubber can provide a more stable sealability.

oil seal 22 32 7. This helps to prolong the life of the machinery and reduce the risk of mechanical failures.
Oil seals are widely used as sealing devices for machines.
JTEKT's oil seals are described in our catalog, Oil Seals & O-Rings.
However, the catalog uses a large number of technical terms and is very long, so many people seem to have trouble handling it.
Therefore, this series of columns will summarize the following in order:
• The structure, functions, and types of oil seals
• How to select the right oil seal
• Handling of seals, and causes and countermeasures for oil seal failure
The primary function of an oil seal is to create a barrier between the rotating or moving parts of a machine and prevent oil or other fluids from leaking out. This helps to ensure that the machinery operates smoothly and efficiently without any loss of lubrication or contamination of the surrounding environment. In addition to preventing leakage, oil seals also help to retain lubricant within the system, extending the life of the equipment.