5mm to 8mm 3D Printer Shaft Coupler – Blue

The 5mm–8mm shaft coupler is designed with a 5mm bore on one side and an 8mm bore on the other, making it ideal for securely and reliably connecting shafts in 3D printers, CNC machines, robotic projects, and various mechanical systems.

Manufactured from high-quality aluminum, this coupler is lightweight, durable, and built for long-term use. With a length of 25mm and an outer diameter of 14mm, it provides ample support for connecting shafts of different sizes. Its blue anodized finish not only gives it an attractive appearance but also enhances surface durability and corrosion resistance.

Specifications

Shaft Diameter: 5mm × 8mm
Coupler Length: 25mm
Outer Diameter: 14mm
Material: Aluminum
Color: Blue
Applications: 3D printers, CNC machines, robotic systems, maker projects, and hobby applications

Advantages

Secure and Stable Connection

Prevents shaft slippage and improves overall mechanical performance.

Vibration Reduction

Minimizes motor and axis vibrations, improving efficiency and operational stability.

Easy Installation

The bore design allows for quick and hassle-free mounting onto shafts.

Versatile Use

Suitable for connecting shafts of different diameters in a wide range of projects.

Applications

3D printer motor and axis connections
CNC machine shaft couplings
Robotics and maker projects
Hobby electronics and small mechanical systems

This shaft coupler is an excellent choice for engineers, makers, and hobbyists seeking reliability, stability, and durability in compact shaft connection applications.

All products shipped with sealed in box. All products packaged carefully. Before shipment, we test all electronics and control the mechanics of all products. So you will never be disappointed when you open our JSumo shipment box.

We have 2 Shipment Options:

Registered Air Mail ( Fixed Price 9,95 USD, Free On Orders Over 199 USD)
DHL Worldwide Express Shipment (Based on weight)

TIME TABLE FOR INTERNATIONAL REGISTERED AIR MAIL

Below, these countries are the only examples. If your country is not in the list, don't be afraid. We are shipping to all over the world including your country too:)

*Colombia, Paraguay, Peru shipments are sent over Brazil Postal Service. ( Turkey >> Brasil >> Colombia, Paraguay or Peru) Because of that delays can happen. We are sending shipment code.

What is your return policy?

You may return a product for refund or exchange (if due to our error) within 30 days of the order shipment date. (The order shipment date and order notification are provided to you by email). All returns must be accompanied with a Return Merchandise Authorisation number (order number #).

If we shipped you the wrong product, or it arrived defective or damaged

No problem. Just contact us within 30 days of the item's original shipping date to arrange for the return of your purchase. Send us photo of wrong product. And we will send a replacement or refund you for your purchase, provided the returned item(s) are received back in their original packaging, along with all accessories, warranty cards, manuals, software, etc., where applicable.

All products shipped with sealed in box and packaged carefully. Before shipment, we test all electronics and control the mechanics of all products. So you will never be disappointed when you open our JSumo shipment box.