Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Couplings
Origin	-
Material	Aluminum Alloy
Outer Diameter	19 mm
Length	25 mm
Shaft Bore Size	5mm to 8mm (Customizable)
Coupling Type	Elastic Wire Coupling
Application	Stepper Motors, Servo Motors, 3D Printers
Max Torque	0.5 Nm
Operating Temperature	-20°C to 80°C
Surface Finish	Anodized Black
Package Weight	45 grams

6 reviews

Anonymous

Mar 30, 2026

Rating: 5/5

Exactly as described

Dimensions matched the listing perfectly. Installation was straightforward with the included grub screws. My Z-axis movement is much smoother now.

Anonymous

Mar 29, 2026

Rating: 4/5

Good quality, slightly tight bore

The build quality is excellent for the price. I had to sand the inner bore slightly to fit my 6mm shaft, but once installed, it runs very smoothly with no wobble.

Anonymous

Mar 26, 2026

Rating: 4/5

Solid component for prototypes

We used these in a student robotics project. They are lightweight yet durable. One unit had a minor cosmetic scratch, but it didn't affect performance.

Anonymous

Mar 17, 2026

Rating: 5/5

Silent operation

I was surprised by how quiet my printer became after installing this. The elastic wire design really does dampen the motor noise effectively. Highly recommended.

Anonymous

Mar 08, 2026

Rating: 5/5

Perfect fit for my Ender 3 upgrade

This coupling replaced the stock plastic one on my stepper motor immediately. The aluminum feels solid and the wire design absorbs vibration perfectly. No more layer shifting issues.

Anonymous

Mar 08, 2026

Rating: 5/5

Sturdy and reliable

Been running this on my CNC router for three weeks now. Zero slippage and the set screws hold tight even under load. Great value for money.

5 FAQ

Q: Is this compatible with NEMA 17 motors?

A: Absolutely. This coupling is specifically designed to work seamlessly with NEMA 17 stepper motors commonly found in 3D printers.

Q: Can this handle a 10mm shaft?

A: The standard model supports up to 8mm. We do offer a custom bore version for 10mm shafts; please contact us before ordering.

Q: Do you ship internationally?

A: Yes, we ship worldwide via standard postal services and express couriers. Shipping costs are calculated at checkout.

Q: Does this come with set screws for installation?

A: Yes, each coupling includes two high-strength set screws for securing the shafts.

Q: What is the maximum RPM this can sustain?

A: While primarily for positioning, it can safely operate at speeds up to 4000 RPM depending on the balance of your specific assembly.

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