Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Couplings
Origin	-
Material	High-Grade Aluminum Alloy
Coupling Type	Spider Jaw Elastic Coupling
Compatibility	Stepper and Servo Motors
Application	Woodworking Engraving Machines, CNC Routers
Torque Capacity	Medium Duty Industrial Standard
Misalignment Tolerance	Angular, Parallel, and Axial
Elastic Element	Wear-Resistant Polyurethane Spider
Surface Finish	Black Anodized Anti-Corrosion Coating
Operating Temperature	-30°C to 80°C
Maintenance	Lubrication-Free Operation

6 reviews

Anonymous

Mar 29, 2026

Rating: 5/5

Solid industrial component

Very happy with this purchase. The machining tolerances are tight, ensuring a secure fit on the shafts. It's a reliable upgrade for anyone looking to improve their machine's performance.

Anonymous

Mar 25, 2026

Rating: 4/5

Good quality, fast shipping

The build quality is excellent for the price. It handles the torque of my servo motor without slipping. I deducted one star only because the instructions were minimal, but it's easy to figure out if you have experience.

Anonymous

Mar 11, 2026

Rating: 5/5

Perfect fit for my CNC router

This coupling replaced a worn-out part on my woodworking engraver. The aluminum alloy feels very sturdy, and the installation was straightforward. No vibration issues since swapping it out.

Anonymous

Mar 07, 2026

Rating: 4/5

Great value for money

Works exactly as described. It connects my stepper motor to the lead screw perfectly. The alignment tolerance helped me fix a slight misalignment issue I had with my old rigid coupling.

Anonymous

Mar 06, 2026

Rating: 5/5

Excellent vibration damping

The elastic spider element does a great job absorbing shocks. My engraving results are smoother now, with fewer artifacts caused by motor vibration. Highly recommended for precision work.

Anonymous

Mar 02, 2026

Rating: 5/5

Durable and reliable

I've been running this coupling for three months straight in my shop. It shows no signs of wear, and the anodized finish has held up well against wood dust and occasional coolant splashes.

5 FAQ

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

A: This aluminum alloy spider coupling is rated for speeds up to 4000 RPM, making it suitable for most standard stepper and servo applications in woodworking machinery.

Q: Can I replace just the elastic spider if it wears out?

A: Absolutely. The design allows for easy replacement of the polyurethane spider element without needing to replace the entire metal hub assembly.

Q: How do I know which bore size to order?

A: Please measure the diameter of both your motor shaft and your lead screw shaft. You need to order the specific model that matches both diameters (e.g., 5mm x 8mm).

Q: Is this compatible with NEMA 23 motors?

A: Yes, provided you select the correct bore size variant. We offer multiple bore options to fit common NEMA 23 shaft diameters used in engraving machines.

Q: Does this coupling come with set screws?

A: Yes, the package includes high-tensile set screws required for securing the coupling to your motor and lead screw shafts.

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