Bellows for machine construction & automotive engineering – designed for resilience, versatility and long-term performance

How do bellows improve the protection, service life and maintenance intervals of your components?

• Effective sealing against dirt, moisture and environmental influences
• Prevention of lubricant loss
• Reduction of wear and corrosion on sensitive components
• Cost savings through extended maintenance intervals and reduced replacement needs
• flexible accommodation of axial and radial motion, including compensation for displacement and misalignment
• Elastic connecting elements for dynamic machine components
• Safety function to protect staff near moving machine parts

Thanks to their high material and media resistance, bellows from Freudenberg Sealing Technologies are also suitable for demanding environments such as outdoor machinery, the food industry or medical technology.

Which materials are ideal for bellows?

Our bellows are specifically designed to meet the high demands of the automotive industry, mechanical engineering, agricultural and construction machinery, as well as technical systems such as food & beverage or medical technology. They stand out due to their high material quality, precise manufacturing and customizable design options.

Depending on the application, various materials are available, including CR, NBR, HNBR, FKM, EPDM, VMQ and TPE materials. This range ensures optimal alignment of temperature resistance, media compatibility, hygiene standards and mechanical durability.

Why is the standard product range so versatile?

The standard product range from Freudenberg Sealing Technologies offers one of the most comprehensive stocked portfolios of single and multi convolution bellows worldwide. With over 400 available articles, our assortment provides flexible solutions for a wide variety of industrial requirements – ideal for OEMs and the MRO market.

Thanks to the wide variety of versions, many applications can be covered without additional design work or custom manufacturing, saving both time and costs.

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Fast product selection in the digital Product Catalogue

How to find the right bellows

Our complete standard portfolio is conveniently available through the Freudenberg Product Catalog. There, you can search specifically by:

• technical specifications
• dimensions
• materials

and directly identify suitable products. In addition, technical drawings, material data sheets and CAD models are available for download – enabling quick integration into your design and planning processes. These digital tools simplify the preliminary selection and allow seamless further processing in your development and planning workflows.

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Characteristics and special features of our standard bellows

What are the benefits of standard bellows from FST?

• Wide selection available directly from stock – economical and efficient
• Defined wall thicknesses and profile geometries ensure optimal performance and load capacity
• Reproducible geometries guarantee consistent quality and dimensional accuracy
• Diverse material options: tailored to media resistance, temperature requirements and regulatory standards

Thanks to the immediate availability of many items, downtime can be minimized and replacement applications can be implemented quickly.

Discover one of the most comprehensive standard ranges for bellows – quickly and cost effectively available and suitable for a wide variety of applications.

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Which factors contribute to the flexibility of our modular TPE system?

Our modular TPE (thermoplastic elastomer) bellows are based on an intelligent modular design that allows a high degree of flexibility in configuration. Thanks to interchangeable tool inserts, the bellows can be individually customized – both in production length (85–200 mm) and in connection diameter (in graduated sizes: Ø50, Ø63, Ø80, Ø100 and Ø125).

The design of the connection areas can also be adapted as needed to ensure optimal integration into the respective application.

What material advantages does TPE offer compared to rubber?

The TPE material used offers a long service life thanks to better pressure stability and resistance to rotational speeds compared to conventional rubber bellows. In addition, TPE features excellent ozone resistance, good media resistance and strong thermal durability.

Therefore, TPE is ideal for applications with high dynamic loads or changing environmental conditions.