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Home / Couplings / High-Precision Spider Coupling, Aluminum Alloy Three-Jaw Motor Ball Screw CNC Lathe Elastic Star Coupling

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Couplings
Origin -
Material High-Grade Aluminum Alloy
Coupling Type Spider Jaw with Elastic Star Insert
Application CNC Lathe, Motor to Ball Screw Connection
Precision Level High-Precision Machined
Torque Capacity Medium to High Torque Transmission
Misalignment Compensation Angular, Parallel, and Axial
Insert Material Wear-Resistant Polyurethane
Surface Finish Anodized for Corrosion Resistance
Operating Temperature -30°C to +80°C
Origin Manufactured in Dongguan, China

6 reviews

A

Anonymous

Mar 25, 2026

Rating: 4/5

Great coupling, minor packaging issue

The product itself is top-notch and performs exactly as described. One box was slightly dented during shipping, but the part inside was fine.

A

Anonymous

Mar 23, 2026

Rating: 5/5

Robust and reliable

We ordered five units for our production line. All arrived in perfect condition with no defects. The anodized finish looks professional.

A

Anonymous

Mar 21, 2026

Rating: 5/5

Excellent damping characteristics

Used this on a high-speed lathe application. The elastic element does a great job absorbing shock loads. Highly recommended for precision work.

A

Anonymous

Mar 08, 2026

Rating: 4/5

Good value, fast shipping

Solid aluminum construction. The star insert fits snugly. Took a bit of time to align initially, but once set, it runs very smoothly.

A

Anonymous

Mar 01, 2026

Rating: 5/5

Superior to previous brand

Replaced a cheaper plastic coupling with this aluminum one. The difference in stability and noise reduction is immediately noticeable.

A

Anonymous

Mar 01, 2026

Rating: 5/5

Perfect fit for my CNC retrofit

The machining quality is excellent. The tolerances were spot on for connecting my servo motor to the ball screw. No vibration issues at all.

5 FAQ

Q: What are the available bore sizes for this model?

A: We offer various bore sizes ranging from 5mm to 25mm. Please check the specific SKU selection or contact us for custom boring services.

Q: Is there a warranty on the product?

A: Yes, we provide a 12-month warranty against manufacturing defects under normal operating conditions.

Q: How do I determine the correct torque rating for my motor?

A: Please refer to your motor's datasheet for nominal and peak torque. Our team can help verify compatibility if you provide your motor model number.

Q: Can this handle continuous operation at high RPMs?

A: Absolutely. This aluminum alloy design is balanced for high-speed applications typical in CNC lathes and milling machines.

Q: Does this coupling come with the elastic star inserts included?

A: Yes, each unit comes pre-assembled with a high-durability polyurethane star insert ready for installation.

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