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Home / Couplings / Zhongchi Aluminum Alloy Spider Coupling for 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 TPU Spider Insert
Misalignment Compensation Angular, Parallel, and Axial
Operating Temperature -40°C to 80°C
Surface Treatment Black Anodized Finish
Torque Capacity High Torque Transmission
Maintenance Maintenance-Free Operation
Compatibility Standard NEMA Motor Shafts

6 reviews

A

Anonymous

Mar 29, 2026

Rating: 4/5

Good value, fast shipping

Works well for the price point. The aluminum feels sturdy. I deducted one star because the set screws could be slightly higher grade, but overall a great purchase.

A

Anonymous

Mar 20, 2026

Rating: 5/5

Excellent damping properties

The elastic spider insert does a fantastic job absorbing shock loads. My servo motor runs much smoother now. Highly recommended for precision machinery.

A

Anonymous

Mar 19, 2026

Rating: 5/5

Best coupling for the money

Replaced a worn-out plastic coupling with this aluminum one. The difference in rigidity and performance is night and day. Will buy again.

A

Anonymous

Mar 15, 2026

Rating: 5/5

Perfect fit for my CNC upgrade

Installed this on my lathe's ball screw drive. The alignment was spot on, and the vibration dampening is noticeable immediately. Very solid build quality.

A

Anonymous

Mar 09, 2026

Rating: 4/5

Solid construction

Very happy with the machining quality. The bores were accurate to spec. Installation was straightforward with the provided instructions.

A

Anonymous

Mar 07, 2026

Rating: 5/5

Reliable component

Been running this coupling for three months straight in an industrial environment. No signs of wear or loosening. It handles the torque requirements perfectly.

5 FAQ

Q: Can I replace just the spider insert if it wears out?

A: Absolutely. One of the main advantages of this jaw coupling design is that you can replace the elastic spider insert without removing the hubs from the shafts.

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

A: Yes, the package includes the aluminum hubs and the pre-installed elastic TPU spider insert.

Q: Is this suitable for high-speed applications above 3000 RPM?

A: Yes, the balanced aluminum design is suitable for high-speed operations commonly found in servo motor applications, including those exceeding 3000 RPM.

Q: What is the maximum allowable misalignment for this coupling?

A: This coupling can typically compensate for angular misalignment up to 1 degree and parallel misalignment up to 0.3mm, depending on the specific size selected.

Q: Are custom bore sizes available?

A: We offer standard bore sizes for immediate shipment. For custom bore requirements, please contact our sales team directly to discuss lead times and options.

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