Introduction:
Rotary shaft seals are applied for sealing rotating machinery parts. Essentially, they consist of a rubber portion, a stiffening metal sheet and a garter spring.
The rubber elastomer outer covering tolerates thermal expansion as well as roughness in the housing bore. There will be no fretting corrosion. Furthermore, damage of the housing bore will be prevented when frequently replacing the seal. This qualifies for sealing gaseous or liquid media.