Rotary Shaft Seal WA FKM (VIA)


Rotary Shaft Seal WA FKM (VIA)

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

Catalog Rotary Shaft Seal WA FKM (VIA) Download View Design Housing Download View Installation Download View Sealing Mechanism Download View

Product group: Rotary shaft seal
Design: A = outer surface rubber-coated
Seal material: FKM 80
Colour: brown
Stiffening ring: non-alloy steel according to DIN EN 10139
Tension spring: stainless spring steel 1.4301 (SAE 304)

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

The WA FKM is a single acting rotary shaft seal for rotating or pivoting shafts with optional protective lip sealing action (WAS) 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. FPM is superior to the NBR materials for high temperature applications, high peripheral speeds and chemically aggressive media. The combination of FPM 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.

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.

The nominal widths mentioned on the following pages represent the standard dimensions. They are generally in stock or can be delivered at short notice.

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.

d1 Size between 18 - 30 mm

d2 Size between 35 - 45 mm

L Size between 7 - 10 mm

Name d1 d2 L
Name d1 d2 L
VIA - 18 x 35 x 7 18 35 7
VIA - 20 x 40 x 10 20 40 10
VIA - 30 x 45 x 7 30 45 7

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