RS WC - Rotary shaft seals

Type/Ref.: Rotary shaft seals
Pressure (bar): ≤ 0.05/0.5
Temperature (°C): -40 to +100
Peripheral speed (m/s): ≤ 12

Rotary shaft seal in standard design with a metal outer surface, a metal insert and a spring-energized sealing lip made of elastomer. In addition, the standard model is also available with a protective lip (RS WCS) on the air side.

Standard materials

NBR70 Color: black
Energized spring: non-alloy spring steel according to DIN EN 10270-1 Metal housing: non-alloy steel according to DIN EN 10139 Metal insert: non-alloy steel according to DIN EN 10139

Areas of application

Heavy engineering, agricultural and forestry machinery, wind energy converters and rolling mills. As a result of its greater rigidity the RS WC/RS WCS is particularly suitable for larger dimensions as well as difficult installation conditions and severe operating conditions.


The RS WC/RS WCS is a single action rotary shaft seal for rotating or pivoting shafts with optional protective lip sealing action (RS WCS) on the side facing away from the medium, against dirt accumulation from the outside. The additional metal insert gives the rotary shaft seal more rigidity and the metal outer casing guarantees tight and accurate fitting. The RS WC/RS WCS model has limited sealing action with thin fluid or gaseous media and with split housings.
To guarantee a high degree of static sealing on the outer surface, better surface treatment of the housing bore is required or an additional coat of paint should be applied to the metal outer casing.


Good chemical resistance to various mineral oils and greases. 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): -40 to +100
Peripheral speed (m/s): ≤ 12
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. double dust protection lip, spiral on the sealing lip, spring or metal insert made of other steel grades can be produced as well as all kinds of special designs. RS WC/RS WCS are available with an additional coat of paint. Minimum quantities may be obligatory for dimensions outside of the standard.