RS VIAS - Rotary shaft seals

Type/Ref.: Rotary shaft seals
Pressure (bar): ≤ 0.05/0.5
Temperature (°C): -30 to +200
Peripheral speed (m/s): ≤ 35

Rotary shaft seal in standard design according to DIN 3760 with a completely elastomer-encased metal insert and a spring-energized sealing lip. In addition, the standard model is available with a protective lip (RS VIAS) on the air side.

Standard materials

FKM80 Color: brown
Energized spring: rust and acid-resistant steel 1.4571 (AISI 304) Metal insert: non-alloy steel according to DIN EN 10139

Areas of application

Sealing of rotating machine elements such as shafts, hubs and axles.


The RS VIA/RS VIAS is a single acting rotary shaft seal for rotating or pivoting shafts with optional protective lip sealing action (RS VIAS) on the side facing away from the medium against dirt accumulation from the outside. The elastomer outer sheath provides good static sealing, good thermal expansion balance, e.g. in light-metal housings, better sealing with greater roughness and secure sealing for split housings as well as good static sealing with thin liquid or gaseous media. FKM is superior to the NBR materials for high temperature applications, high peripheral speeds and chemically aggressive media.
The combination of FKM material, the standard fully-encased metal insert and the spring made of non-rusting steel enables application in chemically aggressive media.


Mineral oils and greases, synthetic oils and greases, engine, gear and ATF oils, fuels, aromatic and chlorinated hydrocarbons, broad chemicals and solvents resistance. Please also refer to our media resistance tables on page 17 of this catalogue.

Operational application limits

Pressure (MPa/bar): ≤ 0.05/0.5
Temperature (°C): -30 to +200
Peripheral speed (m/s): ≤ 35


Suitable tools should be used for installation. It is recommended that the installation housing is designed to provide the rotary shaft seal with axial support. Please also refer to our general installation instructions on page 25 of this catalogue.


The nominal widths mentioned on the following pages represent the standard dimensions.
Other dimensions and different designs, e.g. double dust protection lip, spiral on the sealing lip, springs or metal inserts made of other steel grades can be produced as well as all kinds of special designs. Minimum quantities may be obligatory for dimensions outside of the standard.