Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Couplings
Origin	-
Material	Aluminum Alloy
Coupling Type	L-Type Jaw (Spider)
Structure	Two-Piece Clamp Design
Bore Finish	Finished Bore (Reamed)
Insert Material	Polyurethane Star Spider
Max Torque	15 Nm
Max Speed	4000 RPM
Misalignment Compensation	Angular, Parallel, and Axial
Operating Temperature	-30°C to +80°C
Package Includes	2 Hubs, 1 Spider Insert, 4 Screws

6 reviews

Anonymous

Mar 28, 2026

Rating: 5/5

Robust and reliable

We ordered five of these for our prototype assembly line. They have been running continuously for three weeks with no issues. The clamp style ensures a secure hold on the shafts.

Anonymous

Mar 21, 2026

Rating: 5/5

Perfect fit for my CNC router

The finished bore was spot on for my servo motor shaft. The two-piece design made installation incredibly easy without needing to disassemble the entire drive train. Very happy with the quality.

Anonymous

Mar 18, 2026

Rating: 4/5

Works as described

Exactly what I needed for my stepper motor project. The star-shaped insert is easy to replace if it ever wears out. Shipping was free and faster than expected.

Anonymous

Mar 11, 2026

Rating: 4/5

Good value, fast shipping

Solid construction and the aluminum feels durable. The spider insert provides good vibration damping. Took off one star only because the set screws could be slightly higher grade, but overall a great purchase.

Anonymous

Mar 04, 2026

Rating: 5/5

Great quality control

The bores were perfectly concentric, which is critical for high-speed applications. No wobble at all when spinning up to 3000 RPM. Will definitely buy again.

Anonymous

Mar 01, 2026

Rating: 5/5

Excellent backlash performance

Used this to replace a worn-out coupling on a 3D printer extruder. The L-type design handles minor misalignments perfectly, and there is virtually no backlash. Highly recommended for precision applications.

5 FAQ

Q: How do I determine the correct bore size to order?

A: Please measure the diameter of both your motor shaft and the driven shaft using calipers. Select the option that matches your measurements exactly, as these are finished bores designed for a tight fit.

Q: Can I re-bore the hubs if my shaft size is non-standard?

A: While the hubs are made of aluminum alloy, they are precision finished at the factory. We recommend selecting the closest standard bore size available to maintain balance and structural integrity.

Q: Is this suitable for outdoor use in rainy conditions?

A: The aluminum hubs have a protective finish, but the coupling is not fully sealed against water ingress. For harsh outdoor environments, we suggest adding a protective cover or using a stainless steel variant.

Q: Does this coupling come with the rubber spider insert included?

A: Yes, the package includes two aluminum hubs and one polyurethane star-shaped spider insert ready for installation.

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

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

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