Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Couplings
Origin	-
Material	High-Grade Aluminum Alloy
Coupling Type	Spider Jaw / Star-Type Elastic
Application	CNC Lathe, Servo Motor, Ball Screw Drive
Torque Capacity	High Torsional Rigidity
Misalignment Compensation	Angular, Parallel, and Axial
Spider Insert Material	Polyurethane (Oil Resistant)
Operating Temperature	-30°C to +80°C
Surface Finish	Black Anodized
Maintenance	Maintenance-Free Operation
Compatibility	Standard NEMA and Metric Servo Motors

6 reviews

Anonymous

Mar 31, 2026

Rating: 5/5

Solved my alignment issues

My shafts were slightly misaligned, causing premature wear on previous couplings. This star-type connector absorbed the error perfectly, and everything is running cool and quiet.

Anonymous

Mar 27, 2026

Rating: 5/5

Excellent vibration damping

The elastic star element does a fantastic job of dampening vibrations from the ball screw. Noise levels in my workshop have decreased noticeably since installing this.

Anonymous

Mar 14, 2026

Rating: 5/5

Industrial grade quality

I use these for multiple machines in my small fabrication shop. They hold up well under continuous operation and high torque loads. Highly recommended for serious hobbyists and pros alike.

Anonymous

Mar 08, 2026

Rating: 4/5

Works as expected

Exactly what I needed for my servo motor connection. The anodized finish looks professional and seems durable. Installation was straightforward with standard tools.

Anonymous

Mar 06, 2026

Rating: 4/5

Good value, fast shipping

Solid construction and lightweight due to the aluminum alloy. It handled the misalignment in my setup well. Took off one star because the installation instructions were a bit vague, but overall a great product.

Anonymous

Mar 05, 2026

Rating: 5/5

Perfect fit for my CNC retrofit

This coupling replaced an old worn-out part on my lathe. The machining quality is excellent, and the spider insert fits snugly without any play. My servo motor runs much smoother now.

5 FAQ

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

A: Yes, the package includes the aluminum hubs and the polyurethane spider insert pre-installed or packaged together, ready for assembly.

Q: Is it possible to replace just the spider insert if it wears out?

A: Absolutely. One of the main advantages of the star-type design is that you can replace the elastic spider insert without removing the hubs from the shafts, minimizing downtime.

Q: What is the maximum RPM rating for this coupling?

A: While specific ratings depend on the bore size, these aluminum spider couplings are generally rated for speeds up to 4,000 RPM in standard servo applications. Please consult the technical datasheet for your specific bore size.

Q: Do you offer custom bore sizes for this model?

A: We stock standard metric and imperial bore sizes. For custom non-standard bores, please contact our sales team directly to discuss lead times and feasibility.

Q: Can I use this outdoors where it might get wet?

A: The aluminum alloy has a protective anodized finish, and the polyurethane insert is oil and moisture resistant. However, for prolonged outdoor exposure, we recommend additional protective housing to prevent corrosion over time.

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