5x8mm Helical Beam Flexible Shaft Coupling
Good misalignment tolerance and some vibration damping. Ideal for cost effective, light-duty motion systems.
5x8mm Helical Beam Flexible Shaft Coupling is a precision-machined, single-piece coupling designed to connect shafts while compensating for misalignment. Ideal for cost-effective light to medium-duty applications, this coupling uses a helical cut design that accommodates radial and angular misalignments while also providing some vibration damping. Easy to install and maintain, it is commonly used in stepper motor and encoder setups where flexibility and simplicity are important. While it has low to medium torque capacity and low torsional stiffness, its misalignment tolerance and economical design make it a popular choice for many motion control systems.
Pros and Cons
Choose this coupling for cost effective applications with shaft misalignments.
| Pros | Cons |
|---|---|
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Application
Shaft couplings are widely used to connect stepper motors, servos, encoders, linear actuators, and other drive components in automation and motion systems. They provide reliable torque transmission while accommodating varying degrees of misalignment, helping maintain precision and protecting connected equipment. Common in CNC machinery, linear actuators, 3D printers, and modular extrusion-based systems, couplers play a vital role in ensuring smooth, accurate, and long-lasting operation across a broad range of mechanical assemblies.
| Brand | Ooznest |
|---|---|
| Stock Type | New |
| Weight (g) | 12.00 |
| Material | Aluminium |
| Surface Finish | Anodised |
| Colour | Silver |
| Inside Diameter (mm) | 5/8 |
| Outside Diameter (mm) | 20 |
| Length (mm) | 25 |
| Version | 5x8mm |
| Torque Rating (Nm) | 0.9 |
| Moment of Inertia (Kgm2) | 9.1×10-7 |
| Torsional Stiffness (Nm/rad) | 52 |
| Max Axial Movement (mm) | ±0.2 |
| Max Angular Misalignment (°) | 3 |
| Max Radial Misalignment (mm) | 0.15 |
| Maximum RPM | 7700 |
What's Included
| Name | Quantity |
|---|---|
| 5x8mm Helical Beam Flexible Shaft Coupling | 1 |
| Notes |
|---|
| Includes 2 x M3x10mm Socket Cap Head Bolt and 2 x M4 x 6mm Grub Screw |
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6 reviews for 5x8mm Helical Beam Flexible Shaft Coupling
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Cristi N (verified owner) –
Quality product.
Peter Sheppard (verified owner) –
Fitted with no issues
Mark Alcock (verified owner) –
Very high quality product
Scott Heyer (verified owner) –
Happy with it
Customer (verified owner) –
Great replacement for my cheap Chinese version which the holes were not centred
Angelo Madonna (verified owner) –
Very good value for money. I am very pleased with it.