Attributes

Brand	-
Category	Industrial Small Parts / Connectors and Fasteners
Origin	-
Material	Aluminum Alloy
Spider Material	Polyurethane
Coupling Style	Star-Type Jaw
Rated Torque	50 Nm
Bore Size Range	5mm to 20mm
Outer Diameter	40mm
Total Length	55mm
Max Speed	4000 RPM
Surface Finish	Black Anodized
Package Content	1 Coupling, 2 Setscrews

5 reviews

Anonymous

Apr 18, 2026

Rating: 5/5

Durable component

Running for months now without any wear on the spider. Highly recommend for industrial hobbyist setups.

Anonymous

Apr 16, 2026

Rating: 5/5

Perfect for servo motor

Fitment was precise on my 20mm shaft. The elastic design helps absorb minor misalignments effectively.

Anonymous

Apr 16, 2026

Rating: 5/5

Smooth operation

Vibration is gone after swapping out the old coupling. Great for precision work on servo motors.

Anonymous

Mar 19, 2026

Rating: 4/5

Good value

Works well but instructions could be clearer on torque settings for the setscrews. Otherwise a solid product.

Anonymous

Jan 26, 2026

Rating: 5/5

Excellent build quality

Used this on my CNC mill upgrade. The aluminum feels solid and the spider insert fits snugly. No vibration issues since installation.

5 FAQ

Q: What is the hardness of the spider insert?

A: The polyurethane spider is 92A Shore hardness, providing a balance of flexibility and durability.

Q: Does it require lubrication?

A: No, the coupling is maintenance-free and does not require additional lubrication.

Q: Are set screws included in the package?

A: Yes, two setscrews are included for secure shaft attachment.

Q: What is the return policy?

A: We offer a 30-day return policy for unused items in original packaging.

Q: Can I use this for stepper motors?

A: Yes, this coupling is compatible with stepper motors provided the shaft diameter matches the bore range.

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