Freudenberg Sealing Technologies catalog and standard bellows for the process industry

Boots for industrial applications

Precision meets protection – bellows for demanding industrial processes

Chemical plant at night with several pipes in blue color scheme.

What are the key features that ensure the reliability of a bellow in industrial applications?

Our bellows for industrial applications provide dependable protection for moving components and are specifically designed for demanding operating environments. Whether in mechanical engineering, automation technology or custom machinery – we develop tailor made solutions that perfectly combine functionality, safety and design.

Optimized geometries, wall thicknesses and material selections ensure the long-term reliable absorption of high loads, vibrations and frequent movement cycles.


Bellows in detail – designs and application areas

Freudenberg Sealing Technologies catalog program (“V6“ series)

Product | Boots

Catalog / Standard bellows

Our extensive range of single and multi convolution bellows is available in many variants directly from stock and is ideal for immediate use. This helps reduce downtime and spare parts can be supplied quickly and reliably.

Our catalog portfolio includes the following categories:

  • CASC – Catalog Article Single-Convolution
  • CAMC – Catalog Article Multi-Convolution
  • CAMB – Catalog Article Modular Boot
  • CACB – Catalog Article Cable Bushing

The clear categorization simplifies pre selection and spare parts procurement.

Catalog / Standard bellows
Freudenberg Sealing Technologies - Multiple Convolution Bellow

Product | Boots

Multi convolution bellows for industrial applications

Multi convolution bellows reliably protect axially moving rods and machine components from contamination, splash water, dust and environmental influences. Depending on their design, they can also accommodate movements transverse to the axis or combined movement patterns, such as those found in gear shift levers.

Their flexible geometry makes them an ideal solution for demanding industrial applications with complex movement profiles.

Typical areas of application:

  • Mechanical engineering
  • Agricultural and construction machinery
  • Shafts and ball joints
  • Axle bearings
  • Gear shift levers
  • Piston rods
  • inertia brake
  • Telescopic forks

Contact about multi convolution bellows
Freudenberg Sealing Technologies - Single Convolution Bellow

Product | Boots

Single convolution bellows for industrial applications

Single convolution bellows serve as protective elements for shaft joints that primarily perform angular movements. Due to their design, axial mobility is limited.

They are particularly suitable for applications with short stroke movements and small angular displacements, making them ideal for compact installation spaces with defined movement radii. Typical areas of use include ball joints and pipe connections where reliable protection and flexible motion compensation are required.

Contact about Single Convolution Bellows

Product | Boots

Modular TPE boots

Modular TPE boots offer a wide range of configuration options thanks to a flexible modular system. Production lengths (85–200 mm), connection diameters (Ø50–Ø125 mm) and connection interfaces can be individually customized.

This flexibility allows for easy adaptation to varying installation environments — ideal for mechanical engineering, vehicle technology and special purpose machinery.

Contact about Modular TPE boots

Bellows for industrial applications – solutions for every sector

Bellows are used across a wide range of industries and applications. Some typical examples include:

A plow machine plows through field at night

Bellows for agricultural and construction machinery – protection under the toughest conditions

Bellows reliably protect moving components such as hydraulic rods, joints and bearings in agricultural and construction machinery from dirt, moisture, dust and intense vibration. They extend the service life of the components, reduce maintenance requirements and ensure proper functionality even under extreme operating conditions such as mud, rain or continuous shock loads.

Thanks to robust materials and application specific geometries, they are ideal for tractors, excavators, forage harvesters, harvesting and fertilizing equipment, as well as other mobile work machines.

More about Agriculture & Construction

Ice cream cones are in a device and squirt machine is used to put the ice cream on the ice cream cone

Bellows for food & beverage – hygienic, safe and functional

In the food and beverage industry, bellows reliably protect moving components from contamination, moisture and aggressive cleaning agents. High quality, FDA compliant materials such as VMQ or EPDM meet strict hygiene requirements and offer excellent resistance to media and temperature.

The precise shaping based on hygienic design principles enables easy cleaning and secure integration into sterile production environments — ideal for filling systems, homogenizers and process related machinery.

More about Food & Beverage

Close up of pharmaceutical machine during process of synthesis of medicines

Bellows for the pharmaceutical industry and medical technology

In medical technology and pharmaceutical production, bellows ensure reliable sealing of sensitive devices and help prevent cross‑contamination. FDA‑compliant materials such as VMQ or EPDM provide high levels of hygiene, chemical resistance and temperature stability.

Thanks to their precise geometry, the bellows are easy to clean and can be seamlessly integrated into sterile environment systems — ideal for tablet presses, laboratory equipment and analysis or testing stations.

More about pharmaceutical

Close up of a drill head drilling a hole in the wall

Bellows in power tools – protection for moving components under high load

In professional power tools such as rotary hammers, tampers, nail guns or leaf blowers, bellows reliably protect mechanical components from dust, dirt, moisture and intense vibration.

They are used on moving connection elements, guides and joints, helping to maintain the service life and functional reliability of the tools even under demanding operating conditions.

Robust materials and compact geometries make them ideal for high performance construction and garden equipment.

More about power tools

Several power poles with e-transmission distributor

Bellows for power transmission systems

In electrical switchgear, bellows reliably protect moving connectors, actuating mechanisms and interfaces from dust, moisture and foreign objects. They ensure the functionality of mechanical components and contribute to electrical safety.

Especially in outdoor installations or industrial environments, their robust and media‑resistant designs extend the service life of the systems and reduce maintenance requirements.

More about energy & power transmission

Interior view of an industrial power plant with generator and turbine engines, high-performance pump system, steel pipes, pressure gauges, and heat exchanger units in a modern factory hall with metal roof construction.

Bellows in fluid technology – flexible protective solutions for hydraulic and pneumatic systems

In hydraulic and pneumatic systems, bellows reliably protect lines, valves and connecting elements from dirt, moisture and chemical influences.

They compensate for movements and vibrations and enable the safe guidance of media in fluid technology applications.

High material resistance, dimensional stability and adaptability make them ideal for applications with demanding requirements for sealing performance and service life.

More about Fluid technology

Industrial paper manufacturing machine in a modern factory hall, where a continuous roll of white paper is produced, with metal stairs, safety railings, control platforms, and heavy industrial equipment.

Bellows in paper and wood processing

In paper and wood processing, bellows protect sensitive machine components from dust, wood chips, moisture and other process related influences.

They are used on guides, spindles and linear axes and make a significant contribution to extending service life and reducing maintenance intervals.

Thanks to flexible geometry and material adaptability, they can be seamlessly integrated into existing systems — even at high cycle rates and with dynamic movement sequences.

Train covered station stops at one track

Bellows for the railway sector – functionality meets reliability

Bellows are key components in modern rail vehicles, enabling safe connections between carriages. They compensate for dynamic movements between cars and protect against moisture, dirt and noise.

Our solutions are tailored to the specific requirements of the railway sector — from high speed trains to local transit systems — and contribute to safety, comfort, aerodynamics and energy efficiency.

More about railway

Industrial Robot Arm

Bellow solutions for robotics and automation

In robotics and automation technology, bellows are specifically used in end of arm systems — for example in bellow suction cups and flexible grippers for sensitive or structured surfaces.

In weight compensation systems, they provide reliable sealing and precise movement compensation, such as in vertically guided axes or compensation units with high dynamic demands.

More about Robotics & automation

Two motorcyclists on a barren country road in the desert

Bellows for outdoor and leisure applications – robust protection for mobile use

In recreational vehicles such as sports boats, ATVs, e bikes or golf carts, bellows protect mechanical components from dirt, water, dust and environmental influences.

They are used particularly in steering and drivetrain systems, suspensions and electrical interfaces, ensuring reliable functionality even under changing outdoor conditions.

Thanks to flexible geometries and robust materials, they offer long service life and reduce maintenance requirements — whether on the road, off road or on the water.

More about outdoor & recreational

Custom manufacturing according to customer specifications

Employee sits in front of three screens and constructs a seal

How to design a customized bellow

We manufacture your bellow exactly according to your drawing or take over the complete development — including design, material selection and validation. Even complex geometries such as oval or prismatic cross sections, as well as special requirements for color, media resistance or material compliance, are implemented with precision.

Especially in tight installation spaces or under extreme environmental conditions, a customized solution offers significant advantages over standard components.

Discover the new Technical Manual

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Freudenberg Sealing Technologies - Technical Manual
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