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Home / Couplings / Aluminum Alloy Single/Double Diaphragm Coupling with Keyway for Servo Motor and Lead Screw, Flexible Connector In-Stock

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Couplings
Origin -
Material High-Grade Aluminum Alloy
Coupling Type Single/Double Diaphragm
Connection Method Keyway and Set Screw
Application Servo Motor to Lead Screw
Flexibility High Torsional Rigidity with Angular Misalignment Compensation
Surface Finish Anodized Black
Operating Temperature -20°C to 80°C
Max Speed 4000 RPM
Availability In-Stock
Package Includes 1x Coupling, 2x Set Screws, 1x Key

6 reviews

A

Anonymous

Mar 30, 2026

Rating: 5/5

Perfect fit for my CNC upgrade

The keyway alignment was precise, and the double diaphragm design handled the misalignment on my lead screw perfectly. Very sturdy construction.

A

Anonymous

Mar 28, 2026

Rating: 5/5

Excellent torsional stiffness

Using this on a high-speed servo application. Zero backlash noticed so far. The flexible connector absorbs vibration well without losing torque transmission.

A

Anonymous

Mar 26, 2026

Rating: 5/5

Reliable for automation projects

I've installed three of these on different axes of my automation rig. They run smoothly and quietly. Highly recommend for anyone building custom machinery.

A

Anonymous

Mar 24, 2026

Rating: 5/5

Great value for money

Compared to other brands, this offers the same performance at a better price. The anodized finish looks professional and resists corrosion.

A

Anonymous

Mar 19, 2026

Rating: 4/5

Good quality, fast shipping

Arrived quickly and well-packaged. The aluminum feels lightweight yet durable. Took off one star because the set screws were a bit tight to loosen initially.

A

Anonymous

Mar 17, 2026

Rating: 4/5

Solid component

Works as described. Installation was straightforward with the included key. Just make sure to measure your shaft diameter carefully before ordering.

5 FAQ

Q: What is the maximum torque rating for the 10mm version?

A: The 10mm bore double diaphragm model has a rated torque of approximately 15 N·m. Please refer to the detailed specification sheet downloadable below for all sizes.

Q: Is the key included in the package?

A: Yes, the package includes the coupling body, two set screws, and one matching key for the keyway connection.

Q: Do you ship internationally?

A: Yes, we ship worldwide. Shipping costs and delivery times vary by location and are calculated at checkout.

Q: Can this handle axial misalignment?

A: While primarily designed for angular and parallel misalignment, the double diaphragm structure allows for minimal axial movement. For significant axial shifts, we recommend checking our bellows series.

Q: Does this coupling come in different bore sizes?

A: Yes, we offer various bore size combinations. Please select your specific inner diameter requirements from the dropdown menu on the product page.

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