1/4″x8mm Helical Beam Flexible Shaft Coupling
Good misalignment tolerance and some vibration damping. Ideal for cost effective, light-duty motion systems.
1/4″x8mm 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) | 15.00 |
| Material | Aluminium |
| Surface Finish | Anodised |
| Colour | Silver |
| Inside Diameter (mm) | 6.35/8 |
| Outside Diameter (mm) | 20 |
| Length (mm) | 25 |
| Version | 1/4"x8mm |
| 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 |
|---|---|
| 1/4″x8mm 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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- 30-Day Return: Items can be returned within 30 days of delivery.
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11 reviews for 1/4″x8mm Helical Beam Flexible Shaft Coupling
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Kevin Harris (verified owner) –
Great service and quick delivery fixed my X axis
Emily Forest (verified owner) –
Perfect! My CNC works again üòÑ
Tony Shearer (verified owner) –
Excellent
Avraham Czeisler (verified owner) –
Excellent!
Jonathan Gomez (verified owner) –
Good üëç product
Donald Martis (verified owner) –
Have not used it yet. It is a backup..
John (verified owner) –
good quality great price
Ian McCrum (verified owner) –
Well made.
John (verified owner) –
Great quality of products at afforable prices
Nick Clarke (verified owner) –
Good accurately made components…
Mr R J Fielder (verified owner) –
Was the right product