1/4″x8mm Slit Beam Flexible Shaft Coupling
Zero backlash coupling with good misalignment tolerance and medium torsional stiffness. Ideal as a balanced, general purpose precision coupling.
1/4″x8mm Slit Beam Flexible Shaft Coupling is a precision-machined, single-piece coupling designed to connect shafts while delivering zero-backlash torque transmission and balanced overall performance. Ideal for general-purpose applications, this coupling offers medium torque capacity, good misalignment tolerance, and medium torsional stiffness for reliable motion control. Its slit beam design allows it to flex under radial and angular misalignments while also providing some vibration damping, making it a strong all-round choice for motor and encoder systems. While it comes at a higher price than standard couplings, its combination of precision, flexibility, and versatility makes it a popular choice for many motion control systems.
Pros and Cons
Choose this coupling this coupler as an excellent all rounder.
| 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) | 14.00 |
| Material | Aluminium |
| Surface Finish | Anodised |
| Colour | Silver |
| Inside Diameter (mm) | 6.35/8 |
| Outside Diameter (mm) | 20 |
| Length (mm) | 26 |
| Version | 1/4"x8mm |
| Torque Rating (Nm) | 1.2 |
| Moment of Inertia (Kgm2) | 9.1×10-6 |
| Torsional Stiffness (Nm/rad) | 170 |
| Max Axial Movement (mm) | ±0.2 |
| Max Angular Misalignment (°) | 2 |
| Max Radial Misalignment (mm) | 0.15 |
| Maximum RPM | 7600 |
What's Included
| Name | Quantity |
|---|---|
| 1/4″x8mm Slit Beam Flexible Shaft Coupling | 1 |
| Notes |
|---|
| Includes 2 x M3x10mm Socket Cap Head Bolt |
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