Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Couplings
Origin	-
Material	Aluminum Alloy
Coupling Type	Spider Jaw Coupling
Jaw Count	3-Jaw Design
Spider Element	Elastic Polyurethane Star
Mounting Method	Keyway with Set Screws
Application	Stepper and Servo Motors
Torque Capacity	High Torque Transmission
Misalignment Compensation	Angular, Parallel, and Axial
Surface Finish	Anodized Black
Operating Temperature	-40°C to 90°C

6 reviews

Anonymous

Mar 27, 2026

Rating: 5/5

Easy installation

The set screws are high quality and hold tight. Installation took less than 10 minutes. Very happy with this purchase.

Anonymous

Mar 27, 2026

Rating: 5/5

Great for servo projects

Using this on a robotic arm joint. The misalignment compensation works smoothly and the motor runs quieter than before.

Anonymous

Mar 10, 2026

Rating: 4/5

Good value, minor sizing note

Works great for reducing backlash. Just make sure to measure your shaft diameter carefully before ordering. The elastic star provides good damping.

Anonymous

Mar 08, 2026

Rating: 5/5

Robust and reliable

I replaced a plastic coupling with this one and the difference in rigidity is noticeable. Highly recommend for high-torque applications.

Anonymous

Mar 07, 2026

Rating: 4/5

Solid component

Does exactly what it is supposed to do. The spider element seems durable. Only wish it came with a spare elastomer insert.

Anonymous

Mar 01, 2026

Rating: 5/5

Perfect fit for my CNC router

The build quality is excellent. The aluminum feels solid and the keyway fits perfectly on my NEMA 23 motor shaft. No vibration issues so far.

5 FAQ

Q: What sizes are available for the bore diameter?

A: We offer various bore sizes ranging from 5mm to 20mm. Please check the specific variant options or contact us for custom sizing.

Q: Can this handle high-speed rotation?

A: This coupling is rated for speeds up to 4000 RPM, making it suitable for most stepper and servo motor applications.

Q: Is the elastic star replaceable if it wears out?

A: Yes, the polyurethane spider element is designed to be easily replaced without removing the hubs from the shafts.

Q: Does it come with the keys for the keyway?

A: No, the keys are not included as they are typically supplied with the motor or driven equipment. Standard metric keys are required.

Q: What is the maximum angular misalignment tolerance?

A: The three-jaw design allows for an angular misalignment of up to 1.5 degrees while maintaining efficient torque transmission.

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