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Home / Couplings / High-Precision Double Diaphragm Coupling, Elastic Diaphragm Laminated Joint for Motor, Lead Screw, and Linear Module

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Couplings
Origin -
Material High-Strength Aluminum Alloy
Coupling Type Double Diaphragm Flexible
Application Servo Motors, Lead Screws, Linear Modules
Misalignment Compensation Angular, Parallel, and Axial
Surface Treatment Black Anodized Finish
Operating Temperature -20°C to +80°C
Max Rotational Speed 10,000 RPM
Backlash Zero Backlash Design
Origin Dongguan, Guangdong, China
Package Includes 1x Coupling, 4x Set Screws, 1x Hex Key

6 reviews

A

Anonymous

Mar 26, 2026

Rating: 4/5

Solid performer

Works exactly as described. Installation was straightforward with the included hex key. Only giving 4 stars because shipping took a bit longer than expected, but the product itself is top-notch.

A

Anonymous

Mar 25, 2026

Rating: 5/5

Great build quality

The aluminum feels robust and the anodizing is even. It handled the misalignment between my stepper motor and lead screw perfectly without any vibration.

A

Anonymous

Mar 15, 2026

Rating: 5/5

Perfect for my CNC upgrade

Installed this on my Z-axis linear module. The zero backlash is noticeable immediately, and the machining quality is excellent. Very smooth operation at high speeds.

A

Anonymous

Mar 06, 2026

Rating: 5/5

Excellent value

For the price, you cannot beat the quality. The double diaphragm design provides great flexibility while maintaining torsional stiffness. Will buy again.

A

Anonymous

Mar 02, 2026

Rating: 5/5

Reliable for precision tasks

We use these in our prototyping lab for various motor setups. They are consistent, durable, and handle torque well without slipping. Highly recommended for automation projects.

A

Anonymous

Mar 01, 2026

Rating: 5/5

Exactly what I needed

Replaced a worn-out plastic coupling with this metal one. The difference in rigidity and precision is night and day. My 3D printer layers are much more consistent now.

5 FAQ

Q: Does this coupling come with set screws?

A: Yes, each unit comes with four stainless steel set screws and a hex key for immediate installation.

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

A: Yes, we offer tiered pricing for bulk orders. Please reach out to our sales team via the contact form with your required quantity for a custom quote.

Q: Is the material suitable for outdoor use?

A: While the aluminum alloy is anodized for corrosion resistance, we recommend using it in controlled indoor environments or protected enclosures for optimal longevity.

Q: Can this handle axial movement during operation?

A: Absolutely. The double diaphragm design is specifically engineered to compensate for axial, angular, and parallel misalignments simultaneously.

Q: What is the maximum bore size available for this model?

A: This specific listing is for the standard series which supports bores up to 10mm. Please contact us directly if you require custom boring for larger shafts.

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