HA-CO Metal Bellows Couplings

Torsionally rigid and backlash-free couplings for precision drive systems

Accurate and reliable torque transmission is essential for many industrial machines and drive systems. Especially in servo drives, positioning systems and other applications where high precision is required, backlash and shaft misalignment can have a direct impact on machine performance. HA-CO metal bellows couplings provide a reliable and precise solution for these applications.

These high-quality couplings are manufactured by HA-CO GmbH and are designed for applications where a torsionally rigid, backlash-free and precise connection between two shafts is required.

The metal bellows allows rotational movement to be transferred accurately from one shaft end to the other. At the same time, small axial, lateral and angular misalignments between the shafts can be compensated. This allows the coupling to combine high torsional rigidity with the flexibility required within the drive system.

What is a HA-CO metal bellows coupling?

A metal bellows coupling is a mechanical machine component used to connect two shafts and transfer torque accurately and without backlash.

Metal bellows couplings are also known as bellows couplings, corrugated tube couplings, servo couplings, torsionally rigid couplings and miniature couplings.

The flexible part of the coupling consists of a metal bellows. This bellows allows small deviations between the two connected shafts to be compensated while maintaining a torsionally rigid connection.

The metal bellows can compensate for various types of misalignment, including:

• Axial misalignment.

• Lateral or radial misalignment.

• Angular misalignment.

• Misalignment caused by manufacturing and assembly tolerances.

• Changes caused by thermal expansion.

This allows the coupling to transfer movement and torque accurately without requiring a completely rigid connection.

German quality from HA-CO

The metal bellows couplings are developed and manufactured by HA-CO GmbH in Germany. The manufacturer focuses on high-quality components and solutions for drive technology and mechanical engineering.

HA-CO combines technical development with modern manufacturing and machining technologies. This enables the company to supply both standard products and specific solutions for various industrial applications.

OpenSupply supplies these high-quality HA-CO components to companies looking for reliable and precise solutions for their drive systems.

Key benefits

HA-CO metal bellows couplings combine high torsional rigidity with flexible compensation of shaft misalignment.

The main benefits include:

• Backlash-free torque transmission – ensures accurate transfer of rotational movement between both shafts.

• High torsional rigidity – suitable for applications where direct and precise movement is important.

• Compensation of shaft misalignment – the metal bellows can compensate for axial, lateral and angular misalignment.

• Reduced bearing loads – the flexible bellows can prevent shaft misalignment from being fully transferred to the bearing points.

• High precision – suitable for servo, positioning and other precision drive applications.

• Low-maintenance operation – designed for long-term use in industrial applications.

• Compact construction – suitable for various machine and drive configurations.

• Different versions available – available in different materials, dimensions and connection configurations.

• Suitable for dynamic applications – ideal for drive systems where precise and fast movements are important.

Different HA-CO metal bellows couplings

The HA-CO range includes various metal bellows couplings. The different versions vary in terms of material, dimensions, shaft-hub connection and mounting method.

OpenSupply offers various HA-CO versions, including the MKA-S, MKE, MKJ, MKJ-S, MKS and MKS-S.

HA-CO MKA-S

The MKA-S is a metal bellows coupling with aluminium clamping hubs. This version is designed for applications where low weight and accurate torque transmission are important.

HA-CO MKE

The MKE is a metal bellows coupling with a fully stainless-steel construction. This coupling is suitable for applications where high demands are placed on the material and temperature resistance.

HA-CO MKJ

The MKJ is a compact metal bellows coupling with clamping hubs. This version is suitable for precision drives and can compensate for small axial, lateral and angular misalignments.

The MKJ is suitable for applications with servo motors and other drives where high torque transmission accuracy is important.

HA-CO MKJ-S

The MKJ-S is a metal bellows coupling with clamping hubs and is suitable for applications requiring larger shaft diameters.

This version combines a torsionally rigid connection with the flexibility of the metal bellows and can therefore be used in various industrial drive systems.

HA-CO MKS

The MKS is a plug-in metal bellows coupling with aluminium hubs. Thanks to its plug-in design, this coupling can be easily installed within a drive system.

The compact design makes the MKS suitable for applications where available installation space is limited.

HA-CO MKS-S

The MKS-S is also a plug-in metal bellows coupling, but is equipped with steel hubs.

This version is suitable for applications where a robust and precise connection between two shafts is required.

Precise and backlash-free torque transmission

An important advantage of a metal bellows coupling is the combination of high torsional rigidity and flexibility.

The torsionally rigid construction ensures that rotational movement is transferred accurately. At the same time, the metal bellows can compensate for small deviations between the two shafts.

This creates a reliable and precise connection suitable for applications where movement, positioning and torque transmission must be performed with a high degree of accuracy.

Metal bellows couplings are therefore particularly suitable for servo drives, positioning systems and other precision industrial applications.

Reduced bearing loads

With a completely rigid coupling, shaft misalignment can result in additional forces being applied to bearings and other machine components.

The flexible metal bellows can partially compensate for these misalignments. This helps prevent all forces resulting from shaft misalignment from being transferred directly to the bearing points.

This makes metal bellows couplings suitable for machines where both precise torque transmission and controlled mechanical loading of the drive system are important.

Easy integration into your drive system

Metal bellows couplings are available in different versions and connection configurations. The various HA-CO models differ in terms of material, shaft diameter, hub design and mounting method.

Depending on the application, you can choose from aluminium or steel hubs, compact versions or plug-in couplings.

In several versions, the shafts are connected to the coupling using clamping hubs. This means that keyways are often not required, allowing the coupling to be integrated compactly into the drive system.

When selecting the correct coupling, factors such as required torque, shaft diameters, operating speed, available installation space and possible shaft misalignment within the machine should be taken into consideration.

Buy HA-CO metal bellows couplings from OpenSupply

With a HA-CO metal bellows coupling, you choose a high-quality solution for precise and backlash-free torque transmission.

OpenSupply offers various HA-CO metal bellows couplings and can help you find the right solution for your application. Factors such as required torque, shaft diameter, material, available space and desired mounting method can be taken into consideration.

Do you require a specific version, shaft diameter or technical configuration? OpenSupply can also assist with technical questions and advice on selecting the right metal bellows coupling.

Choose precision drive technology with HA-CO

A correctly selected metal bellows coupling provides a precise, torsionally rigid and backlash-free connection between two shafts. Thanks to the flexible metal bellows, different types of shaft misalignment can also be compensated.

HA-CO metal bellows couplings combine precise torque transmission, high torsional rigidity and reliable construction for a wide range of industrial applications.

HA-CO metal bellows couplings – high-quality German drive technology for precise, backlash-free and reliable torque transmission.

Order your HA-CO metal bellows coupling from OpenSupply or contact our technical specialists for advice on the right version for your application.