85 Years Simmerring
FST Wing

A Success Story in the Sealing Business

85 Years Simmerring

All the News of Freudenberg Sealing Technologies


No Scratch in the Paint

Flying repair drones, self-healing body parts and an inspector who had to explain an accident without any damage. Part 3 of the ESSENTIAL “Trip into the Future” series, in the form of an exciting short crime story.
85 Years Simmerring

85 Years of the Simmerring® – A Success Story

Small, nondescript and ostensibly unspectacular – it is often developments of this exact description that lead to groundbreaking innovations in the world of technology. The idea of manufacturing seal sleeves from leather scraps became the starting point in one of the most important developments in sealing technology: the Simmerring®.

A Round Table at drinktec – We Are Strong Together

Strong together: At Freudenberg’s invitation, representatives of the international beverage industry sat down at drinktec 2017 and discussed trends and challenges. At its stand at the trade fair, Freudenberg Sealing Technologies presented innovative solutions to the sector’s problems.

Freudenberg Sealing Technologies Investigates Conductive Plastics for Radar Sensor Housings

Radar sensors for assistance systems and highly automated driving must be reliably shielded from environmental influences by robust housings and seals. Until now, they were protected by aluminum carrier housings that Freudenberg Sealing Technologies securely sealed with liquid silicone rubber (LSR) seals.

Events & Videos

Show all Conference
Aachen, Germany 09. - 11. October 2017

26th Aachen Colloquium

Become part of the largest European conference in the vehicle and engine technology field. The Aachen Colloquium zeros in on current research and development in these fields during in-depth discussions and presentations. Last year, more than 1,800 guests from throughout the world gathered in Aachen.
Show all Fair
Istanbul, Turkey 15. - 18. March 2018


A debut at this year’s WIN EURASIA: Held separately until now, WIN EURASIA Metalworking and WIN EURASIA Automation are taking place under one roof for the first time in March 2018.
Show all YouTube
E-Mobility Video
E-Mobility 05.04.2017

E-Mobility – Charged with expertise

As a leading technological and market partner, Freudenberg Sealing Technologies is setting new standards for sophisticated applications in sealing technology and electric mobility, among many other fields.

Online Services of Freudenberg Sealing Technologies

FST Onlineservices eCatalog

Do you already know the new E-Catalog?

Use the reference book

Check availabilities and download CAD drawings

Search for the suitable part

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O-Ring Configurator

O-Ring Configurator

The results of the calculation are evaluated with a  color scheme. The target values are shown directly and need not be sought in tables - potential catalog rings, including their availability, are proposed as options.

In the integrated materials assistant, suitable compounds can be determined based on the temperature range, the medium, the maximum pressure, the maximum  gap width as well as piston and rod movements.

Job Database

Start your career at Freudenberg?

Find the right position for you based on your passion and skills.

The job portal of Freudenberg shows worldwide opportunities to become part of our intercultural and interdisciplinary team.

Discover the world of sealing technology - with the No. 1 specialist in the world.


Low Emission Sealing Solutions

Freudenberg Sealing Technologies focuses on the reduction of friction with its LESS initiative. LESS stands for “Low Emission Sealing Solutions.” It demonstrates the sealing specialist’s considerable know-how and makes a contribution to the environmentally sustainable mobility of tomorrow.
FST E-Mobility


The future will run on electricity. Leading the way and actively helping to shape the transformation. With its unique materials and technology expertise, Freudenberg Sealing Technologies is superbly equipped for the challenge ahead.

Levitex – The frictionless revolution

The engineers at Freudenberg Sealing Technologies have come very close to the vision of a frictionless seal: The Levitex crankshaft seal creates an air cushion that seals the engine compartment with virtually no friction.
Less is more

Transmission innovation in high gear

Freudenberg meets the requirements of the automotive industry on seals for gears with lightweight construction, reduced friction and materials such as PTFE and PEEK.

Energy storage in hydraulic systems

Energy for hydraulic applications with the acquisition of Tobul Accumulator Incorporated, Freudenberg Sealing Technologies (FST) now offers its customers a complete line of hydraulic accumulators which include piston, diaphragm and bladder.
FST Automotive

Engine of technological progress

Freudenberg Sealing Technologies Automotive supports the industry’s efforts to achieve greater efficiency and reduced emissions.
Heavy Industry

The hottest seal in Town: Radial shaft seal for roller bearings in steel plants

Roller bearings in steel plants are exposed to high stresses and temperatures. Our made-to-order elastomeric radial shaft seal is called the Merkel Radiamatic RPM 41
FST Distribution Mobile

For Distributors

Freudenberg Sealing Technologies proceeds just as systematically in the selection of its strategic distribution partners as it does with seal quality. Its global network consists of an exclusive group of highly qualified distributors who are well-qualified contact points for customers.
FST Freudenberg Xpress

Freudenberg Xpress

Freudenberg Sealing Technologies offers a unique service: machined seals from the original materials and original profiles from regular production.
FST Company VideoFST Company Video


The world of sealing technology is packed with innovative solutions that make life and work around the world safer and more reliable.

Joint success depends on communication

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