RS WASY - Rotary shaft seals

Type/Ref.: Rotary shaft seals
Pressure (bar): ≤10 bar depending on the rotational speed
Temperature (°C): -40 to +100
Peripheral speed (m/s): ≤ 10

Rotary shaft seal equivalent to RS WA type in the Y design, pressurizable. It has a shorter, stronger, spring-energised sealing lip. In addition, this model is available with a protective lip (RS WASY) on the air side.

Standard materials

Colour: black
Colour RS WASY: blue
Energised spring: non-alloy spring
steel according to DIN EN 10270-1
Metal insert: non-alloy steel according
to DIN EN 10139

Areas of application

Sealing of rotating machine elements such as shafts, hubs and axles when pressurised. The main area of application is in pressurised systems such as pumps and hydro-motors.


The RS WAY/RS WASY is a single action rotary shaft seal for rotating or pivoting shafts with optional protective lip sealing action (RS WASY) on the side facing away from the medium, against dirt accumulation from the outside. The shorter, thicker, spring-energised sealing lip enables pressure application of up to 10 bar (depending on the rotational speed). The elastomer outer sheath provides good static sealing, good thermal expansion balance, e.g. in light-metal housing, better sealing with greater roughness and secure sealing for split housings as well as good static sealing with thin fluid or gaseous media.


Good chemical resistance to many mineral oils and greases. Please also refer to our media resistance tables on page 17 of this catalogue.
Operational application limits
Pressure (Mpa/bar): ≤10 bar depending on the rotational speed
Temperature (°C): -40 to +100
Peripheral speed (m/s): ≤ 10
Please also refer to our rotational speed diagram on page 15 of this catalogue.


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. springs or metal inserts made of other steel grades can be produced as well as some special designs. Minimum quantities may be obligatory for dimensions outside of the standard.