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.
Oil Seal 75x100x10 A Complete Guide

Type code
Heat resistance
Outer case
Silicone oil seals, which are also called VMQ, have strong resistance to temperature, which ranges from -140 degrees Fahrenheit to 392 degrees Fahrenheit. They are also resistant to ozone, light, and harsh weather conditions. Silicone is frequently used in hydraulics and pneumatics, as well as in the food and medical industries. Due to the material’s transparency and flexibility, it’s commonly chosen for the manufacturing of o-rings, molded parts, and flat seals, as well as electrical insulators.
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.


Purpose of an Oil Seal

auto parts spark plug.