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Home / Couplings / Diaphragm Coupling Aluminum Alloy Elastic Single/Double Diaphragm Shaft Coupling for High Torque Stepper and Servo Motors

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Couplings
Origin -
Material High-Grade Aluminum Alloy
Coupling Type Single/Double Diaphragm
Application Stepper and Servo Motors
Torque Capacity High Torque Transmission
Precision Level Japanese Tsugami High-Precision
Warranty Period 4 Years Manufacturer Warranty
Flexibility Elastic Compensation for Misalignment
Surface Finish Anodized Corrosion Resistance
Operating Temperature -20°C to +120°C
Origin Engineered in Japan

6 reviews

A

Anonymous

Mar 16, 2026

Rating: 5/5

Reliable under high load

Running this at maximum torque ratings for three months now with no signs of wear or fatigue. The 4-year warranty gives great peace of mind.

A

Anonymous

Mar 14, 2026

Rating: 4/5

Good value for precision parts

Slightly more expensive than generic options, but the Tsugami precision is worth it for applications requiring exact positioning.

A

Anonymous

Mar 13, 2026

Rating: 5/5

Excellent precision

We use these in our automated assembly lines. The vibration damping is superior to the rubber spider couplings we used previously.

A

Anonymous

Mar 08, 2026

Rating: 4/5

Great product, tight fit

The coupling works flawlessly, but ensure you have the correct reamer for the bore size. It is a very precise fit as advertised.

A

Anonymous

Mar 06, 2026

Rating: 5/5

Perfect for my CNC retrofit

Installed this on my Z-axis servo motor. The zero-backlash performance is noticeable immediately. Build quality feels extremely solid.

A

Anonymous

Mar 06, 2026

Rating: 5/5

Smooth operation

Reduced noise levels significantly in our motor setup. The aluminum alloy construction keeps it lightweight yet durable.

5 FAQ

Q: What is the maximum RPM rating for the double diaphragm version?

A: The maximum RPM varies by specific bore size, but generally, these couplings are rated up to 10,000 RPM. Please check the specific datasheet for your model number.

Q: Is the 4-year warranty valid for commercial use?

A: Yes, the 4-year warranty covers both industrial and commercial applications provided the product is installed and operated within specified limits.

Q: Does this coupling accommodate angular misalignment?

A: Yes, the diaphragm design allows for excellent compensation for angular, parallel, and axial misalignments while maintaining constant velocity.

Q: Does this require special lubrication?

A: No, the diaphragm coupling is maintenance-free and does not require any lubrication during its operational life.

Q: Can I order custom bore sizes?

A: Standard sizes are kept in stock. Custom bores are available upon request with a lead time of approximately 2-3 weeks.

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