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Home / Couplings / Aluminum Alloy Single Diaphragm Coupling, Double Diaphragm Flexible High-Torque Coupling for Encoder Motor Servo Keyway

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Couplings
Origin -
Material High-Grade Aluminum Alloy
Coupling Type Single/Double Diaphragm Flexible
Application Servo Motors, Encoders, Stepper Motors
Keyway Feature Standard Keyway Included
Torque Capacity High-Torque Transmission
Misalignment Compensation Angular, Parallel, and Axial
Surface Finish Anodized for Corrosion Resistance
Operating Temperature -20°C to +80°C
Backlash Zero Backlash Design
Industry Use Industrial Automation and Robotics

6 reviews

A

Anonymous

Mar 26, 2026

Rating: 4/5

Solid build quality

The aluminum alloy feels very durable and lightweight. It handles the torque requirements of my robotic arm well. Only giving 4 stars because the installation instructions could be more detailed.

A

Anonymous

Mar 24, 2026

Rating: 5/5

Solved my vibration issues

My previous rigid coupling caused too much stress on the motor bearings. Switching to this flexible diaphragm coupling eliminated the noise and extended the motor life. Very satisfied.

A

Anonymous

Mar 20, 2026

Rating: 5/5

Perfect fit for my CNC setup

This coupling installed easily on my servo motor and encoder. The keyway alignment was precise, and there is absolutely no vibration during high-speed operation. Highly recommended for automation projects.

A

Anonymous

Mar 13, 2026

Rating: 5/5

Great value for money

Compared to other brands, this offers the same performance at a better price point. The zero backlash feature is critical for my positioning system, and it delivers exactly that.

A

Anonymous

Mar 12, 2026

Rating: 4/5

Reliable component

Used this for a conveyor belt motor upgrade. It runs smoothly and quietly. The anodized finish looks professional and seems resistant to shop oils and coolants.

A

Anonymous

Mar 05, 2026

Rating: 5/5

Excellent flexibility

I needed something to compensate for slight misalignment in my machinery, and this double diaphragm design works perfectly. No wear noticed after three months of continuous use.

5 FAQ

Q: Is the keyway standard metric or imperial?

A: We provide both metric and imperial keyway options. You can specify your preference when placing your order in the notes section.

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

A: Depending on the specific size, these couplings typically support speeds up to 10,000 RPM. Please refer to the technical datasheet for the specific model you select.

Q: How do I install this coupling correctly?

A: Ensure shafts are aligned within tolerance, insert the coupling, and tighten the set screws evenly using a torque wrench. Avoid hitting the diaphragm during installation.

Q: Does this coupling come in different bore sizes?

A: Yes, we offer various bore sizes to match standard servo motor shafts. Please check the selection menu or contact us for custom sizing options.

Q: Can this be used in a cleanroom environment?

A: Yes, the aluminum alloy construction and lack of lubrication requirements make it suitable for cleanroom applications, provided it is cleaned before installation.

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