Blue Aluminum Alloy Coupling 5x5MM for 3D Printers and CNC Machines

(7 customer reviews)

In stock

SKU: 53311
  1. Material: Aluminum
  2. Color: Blue
  3. Bore Diameter(d1): 5 mm
  4. Bore Diameter(d2): 5 mm
  5. Length: 25mm
  6. Outer diameter: 14 mm


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Category: 3D Printer Coupling
Tags: EasyMech, 5x5 Coupling, Aluminium Couplings

The Blue Aluminum Alloy Coupling 5x5MM for 3D Printers and CNC Machines is lightweight coupling and exhibits more strength in class. This is made up of HE-30 grade aluminum. This type of couplings are very common and found in the wide range of CNC Machines.

Please note that the bore diameters of this product are as d1=5mm and d2=5mm. They are available in fancy blue color which in turn will make your machine look good.

They can firmly hold the shaft of the motor and other peripherals with the help of Grub Screws which can be tightened rigidly by using Allen Key which we have included in this product pack.

Aluminum couplings are found in 3D Printers, CNC machines and other DIY projects to couple Stepper motors and 8mm rods/threaded rods/precision trapezoidal rods.

We also have the long range of High-Quality EasyMech Coupling’s available in our online shop, click below to check them

EasyMech Motor Couplings

Features :

  1. Exhibits good strength.
  2. High-grade aluminum couplings.
  3. Fit for all CNC projects

Package Includes :

1 x Blue Aluminum Alloy Coupling

4 x Grub Screws

1 x Allen Key

Item Type:

Flexible Shaft Coupling



Bore Diameter (mm)

5 x 5

Length (mm):


Bore Diameter [d1] (mm)


Bore Diameter [d2] (mm)


Outer Diameter (OD)(mm)


Weight (g):


Shipping Weight 0.016 kg
Shipping Dimensions 3 × 2 × 2 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects.  Reimbursement or replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

Based on 7 reviews

4.6 overall

Add a review

  1. Vinil Joy (verified owner)

    quality is good as described

    Vinil Joy

  2. SUBRAHMANIAN (verified owner)

    Not a bad product. Arrived even before expectation. Good packing.


  3. NARAHARI KUMAR (verified owner)



  4. yeligaysom (verified owner)

    I prefer 4 screws. That makes much stronger.


  5. Ajoy Raman (verified owner)

    Good product, dimensions as specified.
    A little ‘Burr’ on the ID at the end of the threads needed to be filed out.
    Provides a tight grip even with one set of grub screws
    I’m satisfied.

    Ajoy Raman

  6. basu.microvac (verified owner)

    Recenty purchased this item. It is of very good quality. However, I could not get the quantity required due to shortage of stock. Awaiting for stock to be replenished soon


  7. Akshay KG (verified owner)

    High quality and finishing , good product

    Akshay KG

Questions and answers of the customers

    it is 5 x 5 or 5 x 8 mm . it looks like 5 x 8 mm i... Read more
  1. 0 votes
    Q it is 5 x 5 or 5 x 8 mm . it looks like 5 x 8 mm in the picture. answer now
    Asked by abigokul007 on November 26, 2023 5:47 pm

    It is 5 x 5 mm 

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Country Of Origin: China