5x8mm Oldham Flexible Shaft Coupling
Medium torque with excellent radial misalignment tolerance, vibration damping, and electrical isolation.
5x8mm Oldham Flexible Shaft Coupling is a three-piece coupling designed to connect shafts while offering excellent radial misalignment compensation and good vibration damping. Ideal for medium torque general-purpose applications, this coupling features a plastic centre disc that provides electrical isolation and absorbs shock for quieter operation. Its Oldham design enables smooth torque transmission with minimal stress on connected shafts, making it suitable for systems where radial misalignment is a concern. While it has low angular misalignment tolerance and low torsional stiffness, and the plastic disc can wear over time, its excellent misalignment handling and damping characteristics make it a popular choice for many motion control systems.
Pros and Cons
Choose this coupling for medium torque applications with radial 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) | 13.00 |
| Material | Aluminium |
| Surface Finish | Anodised |
| Colour | Silver/Black |
| Inside Diameter (mm) | 5/8 |
| Outside Diameter (mm) | 20 |
| Length (mm) | 22 |
| Version | 5x8mm |
| Torque Rating (Nm) | 1.2 |
| Moment of Inertia (Kgm2) | 1.3×10-6 |
| Torsional Stiffness (Nm/rad) | 58 |
| Max Axial Movement (mm) | ±0.2 |
| Max Angular Misalignment (°) | 1 |
| Max Radial Misalignment (mm) | 1.2 |
| Insert Material | Polyamide (PA6) |
| Maximum RPM | 6500 |
What's Included
| Name | Quantity |
|---|---|
| 5x8mm Oldham Flexible Shaft Coupling | 1 |
| Notes |
|---|
| Includes 2 x M2.5x10mm Socket Cap Head Bolt |
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