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Home / Connectors and Fasteners / Aluminum Alloy Spider Coupling CNC Lathe Servo Motor Ball Screw Elastic Star Joint Connector

Attributes

Brand -
Category Industrial Small Parts / Connectors and Fasteners
Origin -
Material Aluminum Alloy 6061
Spider Material Polyurethane Rubber
Surface Finish Black Anodized
Shaft Bore Range 5mm to 25mm
Outer Diameter 45mm
Overall Length 50mm
Rated Torque 15 Nm
Max Speed 4000 RPM
Temperature Range -30°C to 80°C
Weight 120 Grams

5 reviews

A

Anonymous

Mar 19, 2026

Rating: 5/5

Easy Install

Set screws held tight under heavy load. Installation was straightforward with standard hex keys.

A

Anonymous

Mar 06, 2026

Rating: 5/5

Consistent Quality

Bought 20 units for production line. Every single one met the specifications without issue. Will order again.

A

Anonymous

Mar 05, 2026

Rating: 5/5

Perfect Fit

Works great on my CNC retrofit project. The alignment was spot on and it eliminated the backlash I was experiencing.

A

Anonymous

Feb 09, 2026

Rating: 5/5

Less Vibration

Noticed less noise immediately after install. The elastic star does a good job dampening motor vibrations.

A

Anonymous

Feb 03, 2026

Rating: 4/5

Solid Build

Good quality coupling for the price. Shipping took a week longer than expected but the product itself is excellent.

5 FAQ

Q: Can this handle high speed applications?

A: Yes, this coupling is rated up to 4000 RPM depending on the bore size selected.

Q: What bore sizes are available for this model?

A: We offer 5mm to 25mm options. Please select your specific size from the dropdown menu before ordering.

Q: Is the spider element replaceable if it wears out?

A: Yes, spare spiders are sold separately. You do not need to replace the entire coupling.

Q: What is the hardness of the polyurethane spider?

A: Standard 92A Polyurethane is used for optimal flexibility and durability.

Q: Does it come with keyways or just set screws?

A: No, it uses set screws for clamping. Keyways are not included in this specific design.

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