MW Components’ brand (Helical Products Co.) is the originator of the flexible "Helical coupling" or “Beam coupling” and remains the industry leader across the globe in flexible coupling technology and innovation. Through this and other locations, we offer a vast range of standard beam couplings as well as the ability to create custom couplings to meet your exact specifications.
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Beam / Helical Couplings Overview
Beam or Helical couplings are flexible shaft couplings designed to transmit torque between shafts. Due to their curved beam configurations which allow angular movement, they can accommodate misalignments and axial motion, unlike traditional rigid couplings.
Custom Beam Couplings
Custom beam couplings or Helical couplings offer many benefits including, choice of material composition, simplification of assembly, and customizable attachments and tolerances suited to your specific end-use.
MW specializes in custom component manufacturing, providing you with the right features to ensure proper performance. Whether you need to eliminate endplay or spring, ensure zero backlash, need to increase torsional stiffness, or reduce windup, we can create the right custom coupling for your specialized need made to your exact specifications.
Send us your specs or configure a part.
Beam Coupling Manufacturing & Configurations
Our beam couplings are produced using either aluminum or stainless steel using various machining services; however, specialty materials and services are also available for custom components. Multiple attachment styles are also available for added functionality. Torque range, bore ranges, operating temperatures, speed, and other performance factors will vary depending on the configuration chosen.
For more details on available coupling configurations, review the list below for a side-by-side comparison, view our Standard Coupling Comparison Guide below.
The "A" series flexible beam coupling is perfect for general purpose and light to medium duty. An economical, maintenance-free coupling, used in a variety of applications such as encoder/resolver applications, low torque pump, lead screw, and various other applications.
DS (Double Start) series beam couplings are low inertia, high performance, aluminum coupling, that utilizes a helical double start technology. The DS series is torsionally stiffer and higher torque capacity than the "A" series. They are lighter and feature lower inertia than the "H" series.
The H series beam coupling is a stainless steel version of the "A" series, with higher torque capacity and torsional stiffness as well as increased fatigue resistance. The H series is ideally suited for situations requiring a heavy-duty coupling for pump, lead screws, and positioning systems. Also for process equipment in industrial situations where a rugged, tough, long lasting coupling is needed.
MCA series is a general-purpose aluminum flexible beam coupling, used in applications where more parallel misalignment is required. The MCA series has a large range of shaft sizes, with optional keyways.
The MC7 series beam coupling is a stainless steel version of the "MCA (C)" series, with higher torque capacity and torsional stiffness plus increased fatigue resistance due to the material used. The MC7 is a rugged, tough, long-lasting coupling that can be used for pumps, conveyor systems, or industrial processing equipment, where absolute reliability is required.
W series flexible beam couplings are excellent for general purpose, light to medium duty. An economical, maintenance-free coupling, used in a variety of applications. Available in either 7075-T6 aluminum alloy or 17-4PH stainless steel. The stainless-steel version offers a higher torque capacity and torsional stiffness as well as increased fatigue resistance.
The X series coupling is recommended for high-performance motion control applications for encoder/resolvers and is great for applications that require reverse motion. The X series is ideal for servo applications. It is composed of aluminum and made with high torsional stiffness, low radial loads, and metric dimensions.