Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Couplings
Origin	-
Material	Aluminum Alloy
Coupling Type	Spider Jaw Flexible
Shaft Diameter Range	5mm - 20mm
Outer Diameter	40mm
Total Length	55mm
Max Torque	15 N·m
Max Speed	8000 RPM
Spider Insert Color	Orange (Polyurethane)
Surface Finish	Black Anodized
Application	CNC, 3D Printer, Encoder, Lead Screw

6 reviews

Anonymous

Mar 31, 2026

Rating: 5/5

Solid construction

Very happy with this purchase. The anodizing looks professional and the coupling is lightweight yet strong. Great for encoder applications where precision matters.

Anonymous

Mar 28, 2026

Rating: 4/5

Does the job well

Replaced a worn-out plastic coupling with this aluminum one. The difference in stability is night and day. Just make sure to measure your shaft sizes carefully before ordering.

Anonymous

Mar 22, 2026

Rating: 5/5

Perfect for my CNC upgrade

The build quality is excellent. The aluminum feels sturdy and the fit on the motor shaft was precise with no wobble. Highly recommend for DIY CNC projects.

Anonymous

Mar 17, 2026

Rating: 4/5

Good value, fast shipping

Works exactly as described. The orange spider insert provides good flexibility. Took off one star because the set screws were a bit tight to loosen initially, but otherwise great.

Anonymous

Mar 17, 2026

Rating: 5/5

Excellent tolerance

The machining tolerances are impressive for the price point. Fits my NEMA 23 motor and 8mm lead screw perfectly. Will buy more for future builds.

Anonymous

Mar 12, 2026

Rating: 5/5

Smooth operation

Installed this on my lead screw setup for a linear actuator. It runs very smoothly and handles the misalignment perfectly. No vibration issues at all.

5 FAQ

Q: What is the hardness of the orange spider insert?

A: The polyurethane spider insert has a hardness of approximately 92A, offering a balance between flexibility and torque transmission.

Q: Can this handle axial load?

A: This is a flexible jaw coupling designed primarily for torque transmission and accommodating angular/parallel misalignment. It is not designed to support significant axial loads.

Q: Does this come with the hex keys needed for installation?

A: Yes, each coupling includes a small hex key suitable for tightening the set screws.

Q: Is the bore size customizable or fixed?

A: We offer various fixed bore combinations. Please select the specific shaft diameter combination you need from the dropdown menu when ordering. Custom bores are not available for this standard item.

Q: What is the maximum operating temperature?

A: The aluminum body can withstand high temperatures, but the polyurethane spider insert is rated for continuous operation up to 80°C (176°F).

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