Omniseal® Rotary Lip Seals

Omniseal® 30-40 Polymer Rotary Lip Seal
30 / 40 Rotary Lip Seals

Omniseal® 30 and 40 lip seals incorporate a threaded sealing lip, which pumps the media away from the seal. These designs should only be used in lubricating media. These solutions offer long life and positive sealing at given PV limits.

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Proprietary, high-performance polymer compounds and various metal materials are used and combined with design expertise to meet your demanding needs. Due to operational capabilities and services, the most stringent quality and production standards are achieved.

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Standard Specifications

Metal Material (for outer case)

High-Performance polymer compounds

Expert design engineers will decide on the most suitable material choice to meet your application needs.

Used in

Typical applications include engine crank case seals and spindles.


-50 to +200°C (-58 to +392°F)


1 bar (0.1 MPa)

Max speed

30 m/s

Dimensions: Shaft / Bore Diameters

Shaft size ranges
6 - 330 mm (metal cased)

Bore size ranges
16 - 380 mm (metal cased)

Minimum Tolerances
Shaft: +/- 0.003", Bore: +/- 0.001"

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Seal Function & Motion


Dynamic Applications (Rotary Shaft Solutions)

These lip seals are used in dynamic applications, in which at least two hardware surfaces come in contact with one another. In dynamic applications, at least one surface is in motion relative to the other. A typical example is a hydraulic cylinder with shaft and bore. Further, there are two directions of motion in dynamic applications: reciprocating or linear motion, and rotary (including oscillating) motion. We offer mostly radial seals (rod seals and piston seals) in such applications. Occasionally, the application may be a combination of both static and dynamic. For these more complex cases, you can contact our team of experts.


Radial Sealing

The sealing solution is radial. Radial sealing has glands that compress seals in a radial direction. Male glands are machined in the shaft, whereas female glands are machined in the bore. Radial sealing is usually, but not always, dynamic.


We also offer rod seals and piston seals for these applications. Axial sealing has glands that compress seals parallel to the axis of the seal. Glands are machined on the face of the hardware. Axial sealing is usually, but not always, static. Omniseal Solutions™ offers inside and outside face seals in such applications.

Industry Case Studies

Take a closer look at case studies that detail this lip seal's high performance.