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Industrial Seals #933719

Mechanical Face Seals

Mechanical Face Seals are a special form of mechanical seals. They are also known under other designations, such as lifetime seals, floating seals, duo cone seals, toric seals and heavy duty seals. There are two different types of Mechanical Face Seals: Type DO is the most common form that uses an O-Ring as a secondary sealing element. Type DF has an elastomer with a diamond-shaped cross section as a secondary sealing element instead of the O-Ring. To search for available articles, please use the Electronic Catalog.

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Rotary Shaft Seals

Rotary and Shaft Seals Keeping Lubricants in Place

Rotary sealsandShaft Sealsare used in components with oscillating or rotating parts to keep lubrication fluids in while preventing ingress of mud and water. Trelleborg seals help improve components life and long term performance.
Trelleborg Sealing Solutions offers a wide range of specializedRotary Shaft Seals, including our best-in-class proprietary radial lip seal, Turcon Varilip PDRand high qualityradial oil seals
Trelleborg's portfolio ofrotary sealsincludes the commonly knownradial oil seal, rotary shaft seals, radial and axial lip seals, double-acting O-Ring energized Polytetrafluoroethylene (PTFE) rotary seals for shaft and bore, rubber V-Rings, mechanical face seals / heavy duty seals and many more.

Extending component life

Our specialized Rotary and Shaft Seals perform exceptionally well in many different rotary situations. They demonstrate superior low-friction properties and provide excellent resistance to wear.
Rotary and Shaft Seals for many different application

With special seals, like the Radial Oil Seal and Radial shaft seals without a tension ring, the range of applications goes beyond fluid sealing. This special form ofRotary Shaft Sealscan also serve as a scraper in situations with helical movement. Learn more about the various applications for Rotary Shaft Seals and Shaft Seals in ourFilm on Rotary and Shaft Seals.

Find out about our specialized solutions - Browse our Rotary and Shaft Seals product range.
>> Rotary Seals in our E-Catalog (metric)>> Use our CAD Service to download seal profiles direct to your CAD drawings>> Rotary shaft seals and oil seals film>> High speed rotary shaft seals: Film on Turcon Varilip PDR
We also offer an e-Learning program on sealing technology:

>> Rotary Seals - Lesson 1: Basics Part 1>> Complete e-Learning portfolio

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Radial Oil Seal

Radial Oil Seals consist of a single lip bonded to a metal support with a garter spring. There are many different variations of the Radial Oil Seal, both with and without an integral dust excluding lip. These dust lips can be positioned either within the seal width or beyond the seal base. A successful Radial Oil Seal runs with a thin film of fluid under the sealing lip. The film acts as a lubricant and allows a meniscus to form on the other side of the sealing lip. Radial Oil Seals can also include hydrodynamic aids, which create positive sealing by returning any oil leaking back into the system. For pressures above the recommended 0.05 MPa (7.3 psi) a metallic support heel can be used.

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Bonded Seals

The Bonded Seal comprises a metal annulus, square or rectangular in section, to which an elastomeric ring of trapezoidal section is bonded. Developed to replace copper type washers in high-pressure hydraulic and pneumatic threaded connections, the metal ring resists the pressure bursting forces and limits the deformation of the elastomeric element. This prevents over-compression and extrusion.The standard type Bonded Seal is supplemented by a range of self-centering Bonded Seals that eliminate the possibility of leakage, by ensuring it is properly centered during assembly. Available in a wide range of aerospace and defense released materials. Custom designs are also available.

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Diaphragms Seals

All diaphragms are custom designed to suit the requirements of an application and can either be manufactured from fabric-reinforced or thin membrane rubber-only material. Higher pressures can be accommodated, by increasing the burst resistance, with synthetic fabric reinforcement. This also gives the advantages of extended product life, reduced deformation and allows the use of thinner sections to improve sensitivity of control. Diaphragms are commonly used in aircraft fuel systems, for example in control and metering valves.

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