Mechanical sealing solutions are responsible for nearly a quarter of lost mechanical energy in today’s automatic transmissions due to friction.

The aim of designers is to find a seal that minimises power loss, while still being able to seal effectively. Apart from the shape of the seal, material also contributes to this aim.

Here's how our seals find this balance.

Industrial mechanical sealing solutions

Mechanical drive components are found in industry and agriculture. Freudenberg Sealing Technologies has a family of low-friction transmission seals designed to save fuel, lower emissions and extend the operating life of industrial powertrains.

Seals play an important role in the generation, storage and transmission of power. This involves industrial engines and transmissions, pumps, cylinders, valves and actuators, brake systems, axles, wheel hubs and tire pressure control systems.

Levitas seals

Our Levitas transmission seal rings use hydrodynamic oil film technology to reduce transmission friction by as much as 70% over conventional components, depending on application conditions.

Unlike conventional transmission seal rings, which are optimised hydrostatically, Levitas seals build up a hydrodynamic oil film to virtually float on a cushion of oil. There is a full sealing function, despite no physical contact between the seal ring and the dynamic counter face. This reduces friction and wear, creating an extended product life.

Levitas seals deliver the following value for customers:

• The Levitas seal reduces torque by up to 50% compared to current state-of-the-art designs (depending on the size).
• Significantly reduces friction and wear, creating an extended product life.
• Levitas seals are produced with bidirectional texture so installers do not have to determine which face to seat.
• Levitas is available globally.
• Groove dimensions are similar to traditional seals (sliding surface roughness Rz 1.6 or better).

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• Simmerring seals

  A prime example of design and materials combination in mechanical seals is the Simmerring group of seals. Simmerring shaft seals are made from the cutting-edge materials 72 NBR 902 and 75 FKM 585 for long life and low friction.

  Extensive testing means the interaction of seal, lubricant and rotating shaft are precisely matched to the application for optimally matched, efficient tribological systems.

  Want to find out more about seals for mechanical systems? Visit our website or contact us for assistance.