5x8MM Flexible Shaft Coupler
- 🔩 Flexible shaft coupler (5mm × 8mm)
- 🌀 Flex design reduces misalignment and vibration
- ⚙️ Connects 5mm motor shaft to 8mm lead screw/shaft
- 💪 Helps protect motor bearings from stress
- 🛠️ Secure set-screw clamping for firm grip
- 📏 Smooth torque transfer with less noise
- 🧩 Ideal for CNC, 3D printers, robotics, and linear motion
- ✅ Great choice for lead screw coupling applications
60,00 EGP
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Description
5x8mm Flexible Shaft Coupler (Aluminum Alloy)
The 5mm to 8mm Flexible Shaft Coupler is a precision-engineered connector designed
to bridge the gap between a stepper motor and a lead screw or axle. It is most commonly used in
3D Printers (like Ender 3/CR-10) and small CNC machines to connect
a NEMA 17 motor shaft (5mm) to a T8 lead screw (8mm). Its flexible design allows for slight
misalignments while maintaining high torque transmission.
Key Features
- Vibration Dampening: The spiral “beam” cut design absorbs parallel and angular misalignments, reducing wear on bearings and motors.
- Precision Fit: Zero-backlash operation ensures high accuracy in motion control projects.
- High-Grade Material: Machined from high-strength aluminum alloy for a lightweight yet durable performance.
- Secure Fastening: Equipped with two grub screws (M4) on each side to provide a slip-free grip on the shafts.
- Easy Installation: Simple “clamp” mechanism allows for quick assembly and disassembly.
Full Technical Specifications
| Attribute | Details |
|---|---|
| Internal Diameter (Side A) | 5.00 mm |
| Internal Diameter (Side B) | 8.00 mm |
| Outer Diameter | 19.00 mm |
| Total Length | 25.00 mm |
| Material | Anodized Aluminum Alloy |
| Screw Size | M4 Grub Screws (Hex Drive) |
| Maximum Misalignment | 2° (Angular) / 0.1mm (Radial) |
Common Applications
- 3D Printers: Connecting Z-axis stepper motors to T8 lead screws.
- CNC Machines: Coupling motors to drive shafts in DIY routers.
- Robotics: Power transmission between motors and wheel axles.
- Scientific Instruments: High-precision rotary motion control.
Assembly Tip: For the best results, leave a small 1-2mm gap between the two shafts inside the coupler. This ensures the flexible section can properly compress and expand to absorb vibrations.
Specification
General
| WeightWeight | 0,00 g |
|---|---|
| Material | Aluminum 6061-T6 |
| Type | Flexible Shaft Coupler |
| Bore Size | 5mm × 8mm |
| Outer Diameter | 12 mm (approx.) |
| Length | 25 mm (approx.) |
| Flexibility | Allows slight angular and parallel misalignment |
| Weight | 10 g |
| Torque Rating | Up to 0.5 Nm |
| Operating Temperature | -40°C to 120°C |
| Compatibility | For connecting 5mm and 8mm shafts |
