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Home / Couplings / Aluminum Alloy Spider Coupling, Servo Motor Ball Screw CNC Lathe Elastic Star Jaw Coupling

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Couplings
Origin -
Material High-Grade Aluminum Alloy
Coupling Type Spider Jaw (Star) Coupling
Application Servo Motors, Ball Screws, CNC Lathes
Flexibility Elastic Damping Element
Torque Capacity High Torque Transmission
Misalignment Compensation Angular, Parallel, and Axial
Operating Temperature -30°C to +80°C
Surface Finish Anodized for Corrosion Resistance
Maintenance Maintenance-Free Operation
Origin Standard Designed to German Industrial Standards

6 reviews

A

Anonymous

Mar 31, 2026

Rating: 5/5

Perfect fit for my CNC retrofit

Installed this on a servo motor driving a ball screw. The alignment tolerance is excellent, and vibration has been significantly reduced. Highly recommended for precision machinery.

A

Anonymous

Mar 26, 2026

Rating: 5/5

Exactly what I needed

Bought this for a custom 3D printer build using lead screws. It handles the reverse motion smoothly without backlash issues. Very satisfied with the purchase.

A

Anonymous

Mar 19, 2026

Rating: 5/5

Robust and reliable

We use these in our production line lathes. They handle high torque without slipping and the elastic element absorbs shocks well. Great quality for the price.

A

Anonymous

Mar 16, 2026

Rating: 4/5

Good value, fast shipping

The coupling works as expected. The aluminum finish is clean and the bore sizing was accurate. Took off one star because the installation manual could be more detailed.

A

Anonymous

Mar 15, 2026

Rating: 5/5

Industrial grade quality

Using these in harsh workshop environments. The anodized coating holds up well against coolants and chips. A solid choice for any machine shop.

A

Anonymous

Mar 07, 2026

Rating: 5/5

Superior damping characteristics

Replaced a rigid coupling with this spider type to reduce noise. The difference is night and day. The star element provides just the right amount of flexibility.

5 FAQ

Q: How do I know when the elastic element needs replacement?

A: Inspect the star element periodically for cracks, deformation, or wear. If you notice increased vibration or noise during operation, it is time to replace the insert.

Q: What is the maximum angular misalignment this can compensate for?

A: This specific model can typically compensate for up to 1.5 degrees of angular misalignment, depending on the specific bore size and load conditions.

Q: Can I use this with a stepper motor instead of a servo motor?

A: Absolutely. While optimized for servo applications, this coupling works perfectly with stepper motors provided the torque and shaft diameter requirements are met.

Q: Is the bore size customizable or only standard metric sizes?

A: We stock standard metric bore sizes. For non-standard or inch-sized bores, please contact our sales team for custom machining options.

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

A: Yes, the package includes the aluminum hubs and the pre-installed elastic star jaw insert ready for assembly.

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