Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Couplings
Origin	-
Material	Aluminum Alloy
Outer Diameter	25mm
Total Length	30mm
Shaft Bore Options	5mm, 6mm, 8mm, 10mm, 12mm
Coupling Type	Jaw (Spider) Coupling
Application	Stepper/Servo Motor to Lead Screw
Torque Capacity	High Precision Transmission
Flexibility	Compensates for Minor Misalignment
Finish	Anodized Black
Package Includes	1 x Jaw Coupling Set

6 reviews

Anonymous

Mar 29, 2026

Rating: 5/5

Industrial grade quality

Better than expected for the cost. The anodizing is even and the dimensions match the spec sheet exactly. Will buy again for future projects.

Anonymous

Mar 17, 2026

Rating: 5/5

Exactly what I needed

Simple, effective, and robust. Connected my servo motor to the lead screw with zero issues. Highly recommend for hobbyist CNC machines.

Anonymous

Mar 13, 2026

Rating: 4/5

Good quality, fast shipping

Solid aluminum construction. I ordered the 8mm to 10mm version and it fits my NEMA 23 motor perfectly. Slight cosmetic scratch but doesn't affect performance.

Anonymous

Mar 11, 2026

Rating: 3/5

Decent but set screws could be better

The coupling itself is great, but the included set screws felt a bit soft. I replaced them with high-grade alloy screws just to be safe.

Anonymous

Mar 04, 2026

Rating: 5/5

Sturdy and reliable

Using this on a 3D printer Z-axis upgrade. No wobble and handles the torque well. The spider insert provides good vibration damping.

Anonymous

Mar 01, 2026

Rating: 5/5

Perfect fit for my CNC build

The machining quality is excellent. The bores are precise and the set screws hold tight without stripping. Great value for the price.

5 FAQ

Q: What is the maximum RPM rating for this coupling?

A: While dependent on balance and application, these couplings are generally suitable for speeds up to 4000 RPM in standard automation tasks.

Q: Does this come with the rubber spider insert?

A: Yes, the package includes the aluminum jaws and the necessary polyurethane spider insert.

Q: Is this suitable for high-temperature environments?

A: The aluminum alloy handles heat well, but the rubber spider insert has a temperature limit. Please check the specific material datasheet for extreme conditions.

Q: Are the set screws metric or imperial?

A: The set screws provided are metric, matching the standard bore specifications of the coupling.

Q: Can this handle a 12mm shaft on one side and 8mm on the other?

A: You must select the specific bore combination at checkout. This listing offers various sizes, but each unit comes with fixed bores as selected.

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