An oil seal consists of:
Seals perform much better and longer when they are continuously lubricated with an oil that has the correct viscosity for the application and that is compatible with the seal lip elastomer material. The consideration of seal incompatibility, particularly with certain additives and some synthetic lubricants, should not be ignored, but unfortunately very often is.

Type ‘C’ oil seal has an additional cup inserted into the outer cup of ‘B’ type. The supplementary metal inner ring provides a superior stiffness. This type is recommended for use in heavy polluted environments. As the static sealing between housing and metallic shell is limited, low viscosity media can “creep”.
CS
Regular maintenance of the spark plug ignition coil is essential to ensure optimal engine performance. This includes checking for any signs of wear or damage, such as cracks in the casing or corrosion on the connectors. It is also important to replace the ignition coil as part of the recommended maintenance schedule to prevent any potential issues from arising.
With minor lip
Type code
Table 2 b): Common types of oil seals (without spring)

tc oil seal.
ERIKS type M (type B according to the DIN standard) has a single metal casing and rubber sealing lip. Since the casing is made of metal, it must be fitted in a well-finished, undamaged groove. Large volumes of oil seals with metal casings are often cheaper, which is why they are often used as original equipment in machines. However, if an oil seal has to be replaced, types with a rubber exterior (type R or RST) are easier to fit. Type MST is similar to M and commonly used. The difference is the dust lip in the MST oil seal that prevents dust and dirt reaching the sealing lip, and extends its service life in dusty environments.
Well-balanced in terms of resistance to abrasion and high and low temperatures
In conclusion, spark plugs are a critical component of any internal combustion engine, as they are responsible for igniting the air-fuel mixture and powering the vehicle. Regular maintenance and replacement of spark plugs are essential to ensure optimal engine performance and efficiency. By choosing the right type of spark plugs and properly installing them, vehicle owners can enjoy a smoother and more reliable driving experience.

With spring Rubber O.D. wall Metal O.D. wall
Silicone
Wide temperature range
Commonly used in low temperature applications
Very prone to mechanical damage during fitting


-15 °C to + 180 °C