WAO

Rotary shaft seal in standard design with an elastomer outer sheath covering a metal insert without an energised spring on the sealing lip. The WBO model is provided with a metal outer surface.

Description
Product group: Rotary shaft seal
Design: A = outer surface rubber-coated
Model: O = without spring
Seal material: NBR 70
Colour: black
Seal material: NBR 70
Colour: green
Stiffening ring: non-alloy steel according to DIN EN 10139

Areas of application
Secondary sealing e.g. as a dust, dirt or spray protection seal in electric engines, as a grease retainer.

Function
The WAO is a single-action rotary shaft seal for rotating or pivoting shafts. The sealing lip design without a spring produces less friction. As a result, the sealing action in comparison to rotary shaft seals with energised springs is reduced. 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 fluid or gaseous media.

Media
Good chemical resistance to various mineral oils and greases.

Operational application limits
Pressure (Mpa/bar): 0/0
Temperature (°C): -40 to +100
Peripheral speed (m/s): ≤ 12