The mechanical seal is used in a pump, mixer and other mechanical engineering scenarios to contain the fluid within a vessel where a shaft rotates through a stationary (or rotating) housing.
An overview of the different standard types of oil seals and their main characteristics is shown below.
With spring Rubber O.D. wall Metal O.D. wall
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.
One important factor to consider when choosing spark plugs for your MK7 GTI is the heat range. The heat range of a spark plug refers to its ability to dissipate heat away from the tip of the spark plug. Choosing the right heat range for your MK7 GTI is important to ensure optimal performance and longevity of the spark plugs.

