Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Couplings
Origin	-
Material	High-Grade Aluminum Alloy
Coupling Type	Single/Double Diaphragm Disc
Connection Method	Servo Motor to Lead Screw
Flexibility	Elastic Spider Design
Torque Capacity	High Precision Transmission
Misalignment Compensation	Angular, Parallel, and Axial
Surface Finish	Anodized for Corrosion Resistance
Operating Temperature	-20°C to 80°C
Application	CNC Machines, 3D Printers, Robotics
Availability	In Stock - Ready to Ship

6 reviews

Anonymous

Mar 29, 2026

Rating: 4/5

Great value, fast shipping

Ordered the single diaphragm version for a small servo project. It arrived quickly and fit perfectly on the lead screw. Only giving 4 stars because the instructions were minimal, but installation was intuitive.

Anonymous

Mar 27, 2026

Rating: 5/5

Perfect fit for my CNC router

The build quality is exceptional. The aluminum alloy feels sturdy yet lightweight, and the double diaphragm design eliminated all vibration issues I was having with my previous coupling.

Anonymous

Mar 26, 2026

Rating: 4/5

Solid construction

The anodized finish looks professional and seems durable. It handles the torque of my NEMA 23 motor without any slippage. A reliable component for industrial applications.

Anonymous

Mar 21, 2026

Rating: 5/5

Excellent torsional stiffness

As an engineer, I needed something with high precision for a robotics arm. This coupling provides excellent torsional stiffness while still accommodating minor misalignments. Highly recommended.

Anonymous

Mar 18, 2026

Rating: 5/5

Exactly as described

Product matches the description perfectly. The elastic properties absorb shocks well, protecting both the motor and the lead screw. Will definitely buy again for future projects.

Anonymous

Mar 15, 2026

Rating: 5/5

Solved my backlash problem

My 3D printer had noticeable backlash due to a worn-out old coupler. Replacing it with this elastic spider coupling made a huge difference in print quality. Very smooth operation.

5 FAQ

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

A: Absolutely. While optimized for servo motors, these couplings work excellently with stepper motors in CNC and automation applications.

Q: Does this coupling come with set screws included?

A: Yes, each coupling package includes the necessary high-strength set screws for secure installation on both shafts.

Q: Do you offer bulk discounts for orders over 50 units?

A: Yes, we offer tiered pricing for bulk orders. Please contact our sales team directly or request a quote through the product page for volumes exceeding 50 units.

Q: Is the double diaphragm version significantly longer than the single one?

A: Yes, the double diaphragm model is approximately 20-25mm longer than the single diaphragm version to accommodate the additional disc pack.

Q: What is the maximum RPM this coupling can handle safely?

A: For standard sizes, these couplings are rated for speeds up to 4000 RPM. Please check the specific datasheet for your chosen bore size for exact limits.

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