Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Couplings
Origin	-
Material	High-Grade Aluminum Alloy
Type	Rigid Shaft Coupling
Available Bore Sizes	6.35mm, 8mm, 10mm, 12mm, 14mm, 15mm
Application	Servo Motors and Ball Screws
Connection Method	Set Screw Clamping
Surface Finish	Black Anodized
Torque Capacity	High Torsional Rigidity
Compatibility	CNC Routers, Laser Engravers, 3D Printers
Package Contents	1 x Coupling, 2 x Set Screws
Weight	Approx. 45g (varies by size)

6 reviews

Anonymous

Mar 25, 2026

Rating: 5/5

Sturdy and reliable

Using this on a laser engraver project. The rigid design ensures no backlash during rapid movements. Very happy with the build quality.

Anonymous

Mar 21, 2026

Rating: 4/5

Good value, fast shipping

Solid aluminum construction. It does exactly what it needs to do. Took off one star because the set screws could be slightly longer, but overall a great purchase.

Anonymous

Mar 12, 2026

Rating: 4/5

Great for DIY projects

Bought this for a custom 3D printer extruder. It's lightweight yet strong. Installation was straightforward with the included screws.

Anonymous

Mar 10, 2026

Rating: 5/5

Exactly as described

Needed a specific bore size for a servo motor repair. This coupling matched the specs perfectly. The anodized finish looks professional too.

Anonymous

Mar 02, 2026

Rating: 5/5

Perfect fit for my CNC upgrade

Ordered the 8mm to 10mm coupling for my spindle motor. The machining quality is excellent, and it fits tightly without any wobble. Highly recommended for precision work.

Anonymous

Mar 01, 2026

Rating: 5/5

No vibration issues

Replaced a plastic coupler with this aluminum one and the difference in smoothness is night and day. Zero vibration at high RPMs.

5 FAQ

Q: Does this coupling come with the set screws installed?

A: The set screws are included in the package but are not pre-installed to allow for easy adjustment of the shaft positioning.

Q: Is this flexible or rigid?

A: This is a rigid coupling. It is designed to maintain precise alignment between two shafts and does not accommodate angular misalignment like flexible couplers do.

Q: Do you offer bulk discounts for ordering 50 units?

A: Yes, we offer volume pricing for bulk orders. Please contact our sales team directly through the 'Contact Seller' button for a custom quote.

Q: Can I use this for a stepper motor with a 5mm shaft?

A: No, the smallest available bore size for this specific model is 6.35mm. Please check our store for 5mm compatible options.

Q: What is the maximum RPM this coupling can handle?

A: Due to its rigid aluminum alloy construction and balanced design, it is suitable for high-speed applications typically found in servo systems, often exceeding 4000 RPM depending on the specific setup.

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