This is the Blue variant of the Blue Aluminum Alloy Coupling 5x8MM for 3D Printers and CNC Machines in 3D Printer Coupling. Available at ₹56.64 (₹48.00 + GST) with free shipping across India.
PRODUCT DESCRIPTION
The Blue Aluminum Alloy Coupling 5x8MM is a lightweight and strong coupling for 3D Printers and CNC Machines. It is made of HE-30 grade aluminum, which is a high-quality material. This coupling has a common design and can fit in various CNC Machines.
The bore diameters of this product are d1=5mm and d2=8mm. It has a fancy blue color that can enhance the appearance of your machine.
The coupling can secure the motor shaft and other peripherals with Grub Screws that can be tightened with an Allen Key. We have included the Allen Key in this product pack for your convenience.
Aluminum couplings are suitable for 3D Printers, CNC machines and other DIY projects that require coupling Stepper motors and 8mm rods/threaded rods/precision trapezoidal rods.
Features:
- Exhibits good strength.
- High-grade aluminum couplings.
- Fit for all CNC projects.
Specification:
| Material | Aluminium |
|---|---|
| Length (mm): | 25 |
| Outer Diameter (OD)(mm) | 14 |
| Bore Diameter [d1] (mm) | 5 |
| Bore Diameter [d2] (mm) | 8 |
| Weight(gm) | 10 |
| Shipping Weight | 0.015 kg |
| Shipping Dimensions | 3 × 2 × 2 cm |
Package Includes:
1 x Blue Aluminum Alloy Coupling
4 x Grub Screws
1 x Allen Key
Blue Aluminum Alloy Coupling 5x8MM for 3D Printers and CNC Overview
The Blue Aluminum Alloy Coupling 5x8MM is a precision shaft connector designed to link 5 mm motor shafts to 8 mm rods in 3D printers and CNC machines. Crafted from HE-30 grade aluminum with a vibrant blue anodized finish, it ensures reliable torque transfer and adds a professional look to your setup.
Key Features of Blue Aluminum Alloy Coupling 5x8MM for 3D Printers and CNC
- HE-30 grade aluminum construction for lightweight strength and corrosion resistance
- Dual bore design: 5 mm (d1) to 8 mm (d2) for direct coupling of stepper motor shafts to leadscrews or rods
- Length of 25 mm and outer diameter of 14 mm for compact integration
- Two grub screws secure shafts; Allen key included for easy installation
- Bright blue anodized surface enhances appearance and wear protection
- Genuine product with fast shipping from Zbotic
Applications and Use Cases
- Connecting a 5 mm stepper motor shaft to an 8 mm threaded leadscrew in a DIY CNC router
- Coupling X-axis or Y-axis drive rods on 3D printers for smooth motion
- Linking precision trapezoidal rods in small-scale milling or engraving machines
- Upgrading or replacing worn couplings in hobbyist robotics projects
- Retrofit projects requiring quick shaft alignment between mismatched diameters
How to Use Blue Aluminum Alloy Coupling 5x8MM for 3D Printers and CNC
Slide the 5 mm bore onto your motor shaft and the 8 mm bore onto the rod or leadscrew, ensuring both are fully seated. Tighten the two grub screws evenly with the included Allen key, checking alignment to prevent wobble. Verify secure contact before powering your printer or CNC machine.
Why Buy from Zbotic?
- Genuine Products: All items sourced from authorized distributors
- Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
- Free Shipping: Free delivery on qualifying orders
- COD Available: Cash on Delivery, UPI, cards, net banking
- Technical Support: Expert help for setup and troubleshooting
- Easy Returns: Hassle-free replacement for defective products
Frequently Asked Questions
Does this coupling include the Allen key?
Yes, the package includes a compatible Allen key to tighten the two grub screws, so you can install it immediately without extra tools.
What torque can this aluminum coupling handle?
Made from HE-30 grade aluminum, it offers sufficient torque transfer for standard stepper motors in 3D printers and light CNC applications, but it’s not intended for heavy industrial loads.
Can I use this with precision trapezoidal rods?
Absolutely. The 8 mm bore fits standard 8 mm precision trapezoidal rods, lead screws or threaded rods commonly used in motion control assemblies.
eSun PLA Plus Filament Review: Is It Worth It for Indian Makers?
If you have been using regular PLA and want stronger, tougher prints without the complexity of ABS or...
Read More →
OpenSCAD: Parametric 3D Modeling for Engineers
Table of Contents What Is OpenSCAD and Who Should Use It Programming 3D Models with Code Core Operations:...
Read More →
Klipper vs Marlin: Which Firmware Is Better in 2026?
The debate between Klipper and Marlin is the most hotly contested topic in the 3D printing community in...
Read More →Technical Specifications
| Dimensions | 5x8mm |
|---|---|
| Package Quantity | 8 pcs |
| Color | Blue |
| SKU | AI2922 |
| Weight | 0.01105 kg |
| Availability | Out of Stock |
Applications & Use Cases
The Blue Aluminum Alloy Coupling 5x8MM for 3D Printers and CNC Machines is a versatile 3d printer coupling used across a wide range of applications including 3D printer maintenance, printer upgrades, custom printer builds, and replacement parts.
Common use cases:
- Replacing a worn-out nozzle or extruder gear
- Upgrading to a direct drive extruder
- Building a custom CoreXY printer
This product is ideal for 3D printer owners and custom printer builders.
Technical Tip: Keep spare nozzles, PTFE tubes, and belts on hand. Regular maintenance significantly extends printer life and print quality.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
