Offering a much more superior temperature resistance, polyacrylate seals are perfect for applications such as high surface speed oil. Benefits include:
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.

spark plug axia.
Tora Oil Seal: