If the seal is being fitted to original equipment you may have some influence over the shaft and housing bore finish, but if you are replacing a worn seal you still need to take into account the condition of these 2 essential parts.


No code: without minor lip

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.


A piston oil seal, also known as a piston seal ring, is a critical component in an internal combustion engine. It plays a crucial role in preventing oil leakage from the piston and ensuring efficient engine operation.

By preventing lubricants from escaping, they protect key components of machinery from being damaged by leaks of various fluids. Everything from car engines to assembly machines use these oil seals to remain free from any harmful interactions that can cause serious and expensive damage to any of their critical parts.
In this blog, we attempt to highlight what are Oil Seals and the various Rotary Shaft Seals including Mechanical Face Seals, Water Pump Seals, Gland Packings, and V-Seals that are readily available.
Figure 14.1. Shaft seals (DuPont Dow Elastomers).