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
Place the ruler or straight-edge on edge diagonally across the head and block and look for gaps showing light anywhere between the ruler and block.
Raise the jack to take the weight of the engine off its mountings. Make sure you do not strain the radiator hoses or other connections. If in doubt, drain the radiator and disconnect the hoses (See How to remove a car radiator ).
Main lip The main lip is the most critical component of the seal.
J: Additional code is added here as an identifier when two or more seals have exactly the same type codes and dimensional numbers.
• Hydrogenated nitrile rubber
In the high-performance engine world, every component plays a crucial role in delivering maximum power and efficiency. One such integral part is the spark plug wires, which serve as the lifeline between the ignition system and the spark plugs. These wires are responsible for transmitting the high voltage electrical current from the ignition coil to the spark plugs, igniting the air-fuel mixture and propelling the vehicle forward.Another benefit of neoprene foam gaskets is their versatility. These gaskets are available in a variety of shapes, sizes, and thicknesses to meet the specific requirements of different applications. Whether it's a simple O-ring seal or a complex custom gasket design, neoprene foam gaskets can be tailored to fit the unique needs of various industries.
Oil leak: the most frequent failure of the oil seal
One of the key factors that affect the performance of the main bearing oil seal is temperature. As the engine operates, the oil inside the seal becomes heated, which can cause the seal to expand and lose its effectiveness As the engine operates, the oil inside the seal becomes heated, which can cause the seal to expand and lose its effectiveness
ERIKS type GV (type C according to DIN) is equivalent to type M, but is a heavy-duty version with a double metal casing. This can be a useful solution with larger diameters in more demanding applications. There is also a version of this type with a dust lip; the GVST (type CS according to DIN).
Table 3: Features of each seal type
In addition to its excellent temperature resistance, it is also resistant to ozone, light, and weather conditions. Silicone can be typically found in the food and medical industry as well as in hydraulics and pneumatics. It is often the preferred material for o-rings, moulded parts and flat seals but is also commonly used for electric insulators due to the material’s translucency and flexibility.
In conclusion, nitrile oil seals play an essential role in numerous industrial processes by providing reliable sealing solutions in oil-rich environments. Their durability, resilience, and adaptability make them a go-to choice for engineers and technicians. However, careful consideration of the specific application requirements and understanding the limitations of nitrile rubber are crucial to ensure optimal performance and longevity. With ongoing advancements in material science, nitrile oil seals continue to evolve, promising even greater efficiency and reliability in future applications.Also, Viton has the widest range of resistance to chemicals. It’s resistant to several chemicals like silicone oil & grease, mineral & vegetable oil, aliphatic, chlorinated hydrocarbons, methanol fuels, and so many more.