ABOUT Freudenberg-NOK

Freudenberg-NOK is a global leader in sealing technologies founded on its invention of the first oil seal called the Simmerring® in 1929. Based in Weinheim, Germany, Freudenberg-NOK leads the industry in innovations including material compounds like Simriz®, AU 30000, and specially engineered seals like the Merkel® Radiamatic.

Freudenberg-NOK offers customers a vast inventory of seals including O-rings, oil seals, fluid power, hydraulic & pneumatic seals, plus so much more. Freudenberg-NOK’s two brands include their Premium Freudenberg seals and materials whose uncompromising quality makes them ideal for safety-critical or moderate to demanding applications. They also offer complementary Dichtomatik brand products that provide an excellent price-to-performance ratio for moderately demanding applications.


O-rings are among the most commonly used - and most reliable - sealing components used in various applications throughout the world. 

Known for their affordability and durability, O-rings are commonly used in pumps, cylinders, connectors, valves and more, and are available in a range of different materials.

One of the biggest factors in the successful implementation of an O-ring is working with the right brand — and Freudenberg Sealing Technologies is one of the most popular brands worldwide. 

Known for its quality products, Freudenberg has long established itself as an industry leader in O-ring development across a variety of industries. Wyatt Seal is proud to be a Freudenberg-NOK Preferred Partner since 1990, so we can provide you with quality sealing solutions for your application.

What are Freudenberg O-rings?

Freudenberg is an industry-leading brand that specializes in the design and manufacture of unique products - from sealing packages to bellows to dust caps to O-rings. 

Freudenberg specializes in creating different types of O-rings, such as those in standard sizes for common parts and applications and custom sizes for more unique parts and components.

There are two main types of O-rings: static and dynamic. Static O-rings are designed to come into contact with two or more surfaces that don't move, while dynamic O-rings are designed to form a seal between surfaces that do move. Freudenberg makes both static and dynamic O-rings, which means you can get an O-ring sealing solution for virtually any application. 

When you work with Wyatt Seal, we'll ensure you get the right O-ring for the job so that it performs well for your application.

Freudenberg O-rings Material Description

In order to create a quality seal, O-rings need to be flexible. Freudenberg O-rings are available in a variety of materials to suit any application. 

Factors to consider when weighing O-ring type include:

  • Temperature requirements
  • The specific liquid or gaseous application
  • Flame resistance and water resistance
  • Whether you need a static or dynamic seal 

Freudenberg manufactures O-rings with the following materials:

  • EPDM (ethylene propylene diene terpolymer)
  • FKM (fluoro-rubber)
  • NBR (nitrile butadiene rubber)
  • HNBR (hydrogenated nitrile butadiene rubber)
  • VMQ (silicone rubber)
  • FEP (fluorinated ethylene propylene)
  • FFKM (perfluoroeslastomers)
  • Polyurethane

For more information on the specifications for each of Freudenberg's offered O-ring materials, contact Wyatt Seal today.

Common Uses and Applications

Freudenberg O-rings are used across a range of industries and products. Here's an overview of some of the industries and specific products you can typically find Freudenberg O-rings in:

Think a Freudenberg O-ring might be right for your application? Contact Wyatt Seal today to explore all of your options and find the right sealing solution for your product. We'll work with you to find the best sealing solution for any application.

Benefits of Freudenberg O-rings

Freudenberg is an industry-leading brand and there are a number of other benefits to selecting a Freudenberg O-ring. Below are some of the benefits of choosing Freudenberg O-rings:

  • Freudenberg offers a range of standard O-ring part sizes and will also create custom O-rings for more advanced applications or for products with specific requirements.
  • Its O-ring materials are available in different colors and durometer.
  • O-rings are certified for operation in specific industries or segments as required.
  • Freudenberg O-rings are at the top of their class in quality
  • Freudenberg O-rings are designed to last and won't fail prematurely when used correctly.
  • Freudenberg's range of O-rings are suitable across a wide range of industrial applications.

To learn more about the benefits of Freudenberg O-rings and find the right type for your next application, contact Wyatt Seal today.

Contact Wyatt Seal Today

Looking to find the right O-ring for your next project? Let's talk.

For more information on Freudenberg O-rings and to find the ideal sealing solution for your project, contact Wyatt Seal today. 

As an industry leader, we work to become an extension of your business for all of your sealing solutions — no matter the application or its complexity.