Sealing Element

Conclusion
Rubber type
To act as a physical barrier retaining the lubricating oil where it is bound to be.
Another type of seal design has the metal encased in rubber (Figure 2.11).
Garter Spring
The group of oil seals used in dynamic applications include radial shaft seals that seal a rotating shaft around its circumference. They are also known as lip seals, but in this blog we will use the term oil seals.
An oil seal, also known as crankshaft retainer, is a small device, but essential to ensure the proper engine operation. It plays a key role in all moving parts of an engine, acting as a physical barrier. This mechanical seal fulfils the dual purpose of sealing a rotary shaft to maintain the necessary lubrication (avoiding leaks) and preventing other foreign matter from contaminating shafts and bearings in the rotary shaft equipment.
Metal cased design
Standard springs are made of carbon steel. We use stainless-steel springs for our GR and GRST oil seals made from FKM rubber. In some rare cases, an O-ring is even used as a spring element. Standard PTFE lip seals are not fitted with springs.
Shaft oil seals are used in a wide range of industries, including automotive, industrial, and aerospace
. In automotive applications, they are commonly used in engine crankshafts, camshafts, and differentials, where they help to prevent oil leaks and maintain optimal lubrication levels. In industrial applications, shaft oil seals are used in pumps, compressors, and other rotating equipment to protect bearings and other critical components from damage.shaft oil seal
