Trelleborg Launches Rotary Seal that Allows Equipment to Run Faster at High Pressure for Longer

Trelleborg Sealing Solutions launches an innovative seal, Turcon® Roto Glyd Ring® V, which is primarily intended for double-acting pressure within severe working conditions that require extended rotary service. The seal is specifically engineered for machinery where a high pressure to velocity value is required to allow equipment to run at the highest possible speeds in high pressures for an extended service life.


Turcon® Roto Glyd Ring® V is a premium double-acting rotary seal with outstanding performance and reliability. Reduced contact surfaces under all operating conditions significantly improve friction and wear characteristics without compromising sealing performance. Designed for continuous service at high and low PV values, the seal also gives improved performance in oscillating conditions or where there are frequent changes in pressure and/or velocity.

Henrik Vollmond, Product Manager, says: “Customers are demanding increased performance from rotary seals that challenge the PV values of current seals. We therefore needed to develop a rotary seal that can run at higher speeds combined with higher pressures. This resulted in the development of the unique Turcon® Roto Glyd Ring® V, which not only achieves these requirements but also, by virtue of lower heat generation, offers a significantly extended seal life. For the equipment operator that means lower overall costs due to reduced maintenance requirements and energy consumption.”

Test results show that Turcon® Roto Glyd Ring® V runs with low frictional torque at all pressures from 0.5 MPa and above with low sensitivity to pressure increases from 0.5 to 20 MPa. It achieved a PV twice as high as other bidirectional seals and demonstrated 50% lower friction. Furthermore, wear of the seal and O-Ring was so low that it could not be measured.

Like other O-Ring activated Slipper Seals, the initial squeeze of the O-Ring ensures sufficient contact pressure between seal and mating surface to provide tightness at low pressure. With increasing system pressure, the O-Ring and the seal body direct have a contact force on the sealing surface to ensure sealing efficiency at all pressures.

Turcon® Roto Glyd Ring® V has a built in valve function. Valve ports are made from both sides of the Turcon® ring profile to the space in the center, which is the lubricating groove. An elastomer ring is installed in the lubricating groove to prevent static leakage through the ports.

When Turcon® Roto Glyd Ring® V is pressurized from one or the other side, the elastomer ring opens the port on the pressure side and equalizes the pressure beneath the elastomer ring – pressure balancing the seal by more than half. Shifting pressurization through the ports also renews the fluid in the space between the “legs”, improving lubrication under the seal.

Turcon® Roto Glyd Ring® V is ideal for equipment for which a long service life is required in demanding service conditions. Typical examples are machining centers, hydraulic swivels, lead-troughs, rotary connections with swivel movements, excavators, forestry machinery, hydraulic rotators, robots, manipulators, indexing tables, pivoting motors, hydraulic motors, blow molding machines, top drives and core cutting equipment.

With maximum recommended operating temperatures of +100 °C/ +212 °F (up to +150°C/ +302°F at lower PV-values), Turcon® Roto Glyd Ring® V is designed to fit into standard Roto Glyd Ring® grooves. It is available in four cross section series; for shafts in diameters from 35 to 500 millimeters/ 1.377 to 19.685 inches and for bores from 22 to 500 millimeters / 0.866 to 19.685 inches.

When specifying Turcon® Roto Glyd Ring® V, users should note the following. Pressure should be limited to a maximum of 30 MPa. Velocity needs to be limited to 2.0 meters per second. The Roto Glyd Ring® V has been successfully tested up to a combined PV of 10 MPa.m/s.

A patent application has been submitted.

Rubber Materials: Part 2 e-Learning Now Available

The second part of the Rubber Materials e-Learning extends the existing course with more important information on elastomers to aid engineers and students.

Rubber Materials

The complete rubber materials e-Learning educates users on types of elastomers and the critical properties that lead to their success in sealing applications. Guidance and information are given on the impact of temperature, chemical compatibility, and common seal failure with root causes. Finally, a variety of elastomeric seal types are introduced to help choose the correct seal for your application.

By the end of the module you should be able to:

  • Differentiate between common elastomer materials, including benefits and constraints enabling you to choose the correct material for your application.
  • Understand the most common mistakes when selecting sealing materials for use with system fluids.
  • Identify common seal failure modes, find the root cause and suggest appropriate solutions to remedy the problem.

As with the other Trelleborg Sealing Solutions e-Learning modules, a short quiz at the end will test your newly gained knowledge, with a printable certificate to celebrate your success.

All of our e-Learning modules are available free-of-charge from the Trelleborg Sealing Solutions website.

Click the following links to view the Rubber Materials lessons:

To view our complete e-Learning offering, click here.

#TrelleborgThinkTank Sparks Innovation at MD&M West 2017

MD&M West 2017 is the perfect venue for attendees to share ideas and encourage innovation using the hashtag #TrelleborgThinkTank, an exciting initiative from Trelleborg, the global leader in engineered polymer solutions. Its aim is to capture ideas, resolve challenges and innovate solutions – all of which will be sketched and brought to life in booth 2818’s designated wall of inspiration

Trelleborg ThinkTank

Drew Rogers, Global Director, Healthcare & Medical for Trelleborg Sealing Solutions, says: “#TrelleborgThinkTank is an ingenious way to collaborate and brainstorm with experts in engineering, R&D and the medical device community in order to develop ideas and provide advice. It will also help facilitate new solutions to address healthcare and medical challenges that face device makers, medical OEMs and pharmaceutical manufacturers today.”

Design engineers have come to understand the importance of increased performance, agility and usage while managing evolving compliance requirements, which often starts with making the right choice, beginning with the smallest parts and materials. #TrelleborgThinkTank unlocks the innovation of smarter products, better engineered devices and next generation solutions.

A top priority for Trelleborg is to continue to learn from the industry by listening to customers and the challenges they face. In the spirit of innovation, Trelleborg invites attendees to share their ideas and challenges at booth 2818 and participate in the sketches of forward thinking and innovations to be displayed on the #TrelleborgThinkTank wall. It will also be featured via Trelleborg’s numerous social media channels including Facebook, LinkedIn, and Twitter.

For the chance to win an Apple Watch, submit your ideas online at:

Trelleborg Demonstrates Rapid Medical Device Prototyping and Enhanced LSR Technology at MD&M West 2017

MD&M West 2017 Booths 1605 & 2818 will serve as the perfect platforms for Trelleborg Sealing Solutions to emphasize its rapid medical device prototyping that facilitates bringing medical devices to market faster and helps to drive innovation. In addition, its advanced liquid silicone rubber (LSR) technology delivers the highest precision, consistency and longevity to optimize performance and meet complex engineering challenges.

LSR Technology at MD&M West 2017

Rapid medical device prototyping and use of LSR Technology continues to exponentially grow due to increasing engineering and design investments from medical device manufacturers. Market Research firm Kalorama Information anticipates device manufacturers will invest seven percent of their revenues on research and development . This emphasis on innovation by the medical device community embraces the synergies between Trelleborg and its recent acquisition of Specialty Silicone Fabricators (SSF) in the areas of increased product expertise, decades of experience, worldwide access to engineering experts and expanded contract manufacturing services and products.

Drew Rogers, Global Director, Healthcare & Medical for Trelleborg Sealing Solutions, says: “By substantially reducing the time and cost needed to produce prototypes while leveraging the engineering strengths of Trelleborg and its decades of experience in silicone, device manufacturers can confidently take on product development challenges they once shied away from and instead gain a competitive advantage by delivering innovative, better performing, higher quality devices”

Attendees at MD&M West are encouraged to visit Trelleborg at booths 1605 & 2808 to discuss the newest developments of rapid prototyping and LSR technology as well as view an array of solutions for demanding medical, biotech and pharmaceutical applications in thermoplastics, silicone and other elastomers.