
national skeleton tc oil seal. Whether you need a seal for a small or large shaft, a low or high-pressure system, or a standard or custom application, there is a national skeleton TC oil seal to meet your needs.


Oil seals, also known as grease seals or shaft seals, are essential components in many machines and systems. They play a crucial role in preventing the leakage of oil and other lubricants, ensuring the smooth and efficient operation of various mechanical parts.
Usually, these oil seals are used to seal lubricating oil or grease and contain it within the application, so that moving parts such as bearings are continually supplied with enough lubrication. However, such seals are also used for sealing other liquids, gases, and solids, such as powders or granules.
Figure 2.11. Rubber enclosed metal seal
Because of the higher temperature resistance of FKM, this material is also chosen for applications where higher speeds play a role, which raise the temperature at the sealing lip considerably. Usually, using FKM will result in a longer life than using NBR. This compensates the higher price of FKM compared to NBR, as an FKM does not have to be replaced as frequently. The low temperature resistance of standard FKM is limited to -15 ˚C.

What are bearing isolators?
Oil seal materials
Common Oil Seal Failure Causes
To act as a barrier and prevent dirt, contamination and other external entities from entering the system containing the lubricating oil.