Metal bellows couplings

Maximum precision, zero backlash, reliable torque transmission

R+W bellows couplings (also known as metal bellows couplings) offer an ideal solution for high-precision positioning applications, where zero-backlash performance and perfect synchronization between shafts are essential. The metal bellows structure delivers outstanding torsional rigidity while compensating for minor shaft misalignments.

Key Features:

Completely backlash-free design – Ensures highly accurate torque transmission with excellent torsional stiffness, while allowing compensation for radial, axial, and angular misalignments.

Wear-free and maintenance-free – The metallic bellows construction eliminates the need for lubrication or routine maintenance, offering a long-lasting and reliable solution.

High torsional rigidity – Ideal for precision positioning tasks such as in machine tools, robotics, and measurement systems.

Technical Specifications:

·        Torque range: From 0.05 Nm up to 10,000 Nm

·        Suitable for small to medium shaft diameters, with various mounting options available (e.g., clamping hub, conical, TAPER mounting, etc.)

·        Materials: Stainless steel bellows; hubs made from aluminium or steel, depending on application

Typical Applications:

·        Precision machine tools

·        CNC systems

·        Robotics

·        Medical devices

·        Automation systems

·        Measurement technology applications

This coupling type offers the perfect balance of rigidity and flexibility, making it indispensable in any demanding drive or positioning task requiring exact motion control.

Contact us if you have any questions.

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Our quality brands

BK1 - Metal bellows coupling

BK1 - Metal bellows coupling

For simple flange mounting to special drive components, Custom flange patterns available

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BK2 - Bellows coupling

BK2 - Bellows coupling

Easy to mount, optional: bolt tensioning system in size 800 and up, light weight and low moment of inertia

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BKH - Bellows coupling

BKH - Bellows coupling

Radial mounting possible, easy installation onto pre-aligned shafts, low moment of inertia

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BKL - Economy bellows coupling

BKL - Economy bellows coupling

Easy to mount, light weight and low moment of inertia

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BKC - Bellows coupling

BKC - Bellows coupling

For high speeds, for space restricted installations, light weight and low moment of inertia

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BKM - Bellows coupling

BKM - Bellows coupling

Extremely compact, high torque density, high torsional stiffness

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BKS - Fully stainless steel bellows coupling

BKS - Fully stainless steel bellows coupling

For high temperatures, for moisture and aggressive media, welded version

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BK3 - Bellows coupling

BK3 - Bellows coupling

High clamping pressure, high torque version, compact design

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SP3 - Bellows coupling

SP3 - Bellows coupling

Very high balancing quality due to symmetrical design, high operating speeds, extremely smooth running

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BK5 - Bellows coupling

BK5 - Bellows coupling

Easy installation and removal, electrically and thermally isolating, absolutely backlash free and torsionally stiff

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BK6 -Bellows coupling

BK6 -Bellows coupling

Axial mounting possible, easy installation and removal, electrically and thermally insulating, absolutely backlash free and torsionally stiff

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BK7 - Bellows coupling

BK7 - Bellows coupling

For hollow shaft mounting, short design saves installation space, easy to mount

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BK8 - Bellows coupling

BK8 - Bellows coupling

Compact simple design, small installation space, for ISO flange output gearboxes

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Downloads

Handbuch_IK_EN_Auflage7_screen.pdfHandbuch_IK_EN_Auflage7_screen.pdfHandbuch_PK_EN_Auflage11_screen.pdfHandbuch_PK_EN_Auflage11_screen.pdf

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Dénes Surányi
Dénes SurányiProject Engineer
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István Varga
István VargaSales Engineer
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Orsolya Balla
Orsolya BallaInside Sales Assistant
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