Flexible Shaft Couplings

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Shaft misalignment can limit the performance of machines, cause excessive wear, and often lead to premature failure. Flexible shaft couplings can help prevent these issues by transmitting torque while also accommodating for parallel, axial, and angular misalignment between drive components. High performance flexible shaft couplings can also reduce vibration, dampen noise, and protect drive shaft components from overload.
Flexible shaft couplings handle large misalignments without causing high radial stress and perform better than rigid couplings in high-performance applications. Zero-Max also offers flexible shaft couplings that do not require lubrication, creating a virtually maintenance-free solution for motion control applications.

High-Performance Flexible Shaft Couplings from the Industry Leader

Zero-Max is an industry-leading flexible shaft coupling manufacturer. We produce several flexible shaft coupling product lines, each designed to optimize the precision and function of the mechanism and deliver long operational life. No other shaft coupling manufacturer has the experience and expertise Zero-Max brings to all our flexible shaft coupling lines.
Contact us for more information on Zero-Max’s flexible shaft couplings. Or, click here to find your local sales representative.

Zero Backlash Flexible Shaft Couplings

Flexible motor couplings from Zero-Max handle varying degrees of parallel, axial, and angular misalignment and deliver precise zero backlash operation. We offer flexible shaft couplers in a range of models and styles, including couplings designed specifically for servo motor, automation, and wind turbine applications.

Composite Disc Couplings

Our Composite Disc shaft couplings (CD® Couplings) deliver high performance with zero backlash, and are designed to withstand the rigors of the most demanding servomotor systems. We manufacture the functional parts of our composite disc shaft couplings from precision-oriented, aerospace-grade, layered composite materials. Available options include single-flex, double-flex, and floating shaft couplings with either set screw type, bushing type, or clamp type hubs, depending on the model selected.  Standard catalog Composite Disc couplings are available for shaft sizes ranging from 0.25” to 6.00” diameters with peak torque transmission up to over 94,000 in-lb, with larger sizes and higher torque designs available upon request.

ServoClass® Shaft Couplings

The ServoClass shaft coupling provides the optimal blend of performance, durability, and price. These flexible shaft couplers are manufactured from high-quality materials using state-of-the-art CNC manufacturing equipment, allowing Zero-Max to offer high performance, flexible shaft couplings at highly competitive prices. ServoClass shaft couplings provide high torsional stiffness and superior misalignment capacity, reducing reaction loads, making them ideal for servomotor actuators. Available in 14 sizes, both single- and double-disc models, and with torque ratings up to 2,200 in-lb (250Nm).

Control-Flex Shaft Couplings

Control-Flex shaft couplings are specially designed and manufactured for use with feedback devices such as tachometers and encoders. These flexible shaft couplings are engineered for zero backlash operation to ensure accuracy. Additional features include clamp hubs for superior, vibration-resistant shaft engagement and flex elements which provide ultralow bearing reaction loads caused by shaft misalignments. Using a Zero-Max Control-Flex flexible motor coupling on your encoder will guarantee accuracy and extend its operational life. ​

Schmidt Couplings

Zero-Max's Schmidt shaft couplings are uniquely designed to handle applications with challenging or extreme misalignments. Our line of shaft couplings include models for large shaft offsets and inline shaft applications. We also provide a Schmidt 5-D coupling that is ideal in high torque, low RPM applications where maintaining constant angular velocity with extreme angular misalignment is critical.

Selecting the Right Shaft Couplings for Optimal Performance

Shaft couplings should transmit torque while also protecting shafts and components from premature wear and failure, but using the wrong type of coupling can cause issues or loss in performance. Issues may also occur if couplings are installed incorrectly, or when used in applications outside the recommended torque rating and speed capacity.  Let Zero-Max help you select the right flexible shaft coupling for you.
Prevent shaft, bearing, and system issues by using the correct type of shaft coupling on your machine components. Primary considerations for selecting a flexible shaft coupler include torque capacity, motion profile, maximum RPM, shaft sizes, and the type and amount of misalignment. Once installed, a coupling should be relatively easy to connect and disconnect for inspection, as required.

Learn More About Flexible Shaft Couplings from Zero-Max

We offer a wide selection of shaft couplings for high-performance applications. Contact us for more information on Zero-Max’s flexible shaft couplings. Or, click here to find your local sales representative.