Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Couplings
Origin	-
Brand	Guangzhida
Material	Polyurethane (PU) & Aluminum Alloy
Coupling Type	Figure-8 Flexible Elastic
Application	Encoder to Motor Shaft Connection
Flexibility	High Torsional Stiffness with Vibration Damping
Operating Temperature	-20°C to 80°C
Max Rotational Speed	4000 RPM
Shaft Compatibility	Standard Metric Sizes (Custom Boring Available)
Installation Method	Set Screw Fixation
Package Contents	1x Coupling, 4x Set Screws, 1x Hex Key

6 reviews

Anonymous

Mar 31, 2026

Rating: 5/5

Perfect fit for my CNC encoder

This figure-8 coupling solved the misalignment issue I was having with my stepper motor and encoder. The polyurethane element is flexible enough to absorb vibration but stiff enough for precise positioning. Highly recommended for hobbyist CNC builds.

Anonymous

Mar 30, 2026

Rating: 4/5

Works as described

Simple, effective, and robust. The figure-8 design allows for easy installation without needing to slide the motor back too far. Just ensure you tighten the set screws properly with thread locker.

Anonymous

Mar 24, 2026

Rating: 5/5

Saved my project

I couldn't find a local supplier for this specific size. Guangzhida had it in stock and it arrived quickly. The flexibility compensates for my slight shaft alignment errors perfectly.

Anonymous

Mar 14, 2026

Rating: 4/5

Good quality, fast shipping

The build quality is solid. The aluminum hubs are well-machined, and the PU spider fits snugly. I deducted one star only because the included hex key felt a bit flimsy, but the coupling itself works great.

Anonymous

Mar 04, 2026

Rating: 5/5

Reliable industrial component

We ordered several of these for our production line repairs. They match the original specifications perfectly and have been running without failure for three months now. Great value for money.

Anonymous

Mar 02, 2026

Rating: 5/5

Excellent vibration damping

Used this on a high-speed spindle application. It significantly reduced the noise and vibration transmitted to the encoder. Very happy with the performance and durability so far.

5 FAQ

Q: Can this coupling handle parallel misalignment?

A: Yes, the Figure-8 polyurethane design is specifically engineered to accommodate small amounts of parallel, angular, and axial misalignment simultaneously while maintaining torsional rigidity.

Q: Is this suitable for outdoor use in rainy conditions?

A: While the aluminum hubs are corrosion-resistant and the PU material is water-resistant, this coupling is primarily designed for indoor industrial or machinery environments. For prolonged outdoor exposure, additional protective housing is recommended.

Q: Is the polyurethane element replaceable if it wears out?

A: Yes, the elastic spider (polyurethane part) is designed to be replaceable. You do not need to replace the entire aluminum hub assembly if the flexible element degrades over time.

Q: Does this come with pre-installed set screws?

A: The coupling comes with a bag of set screws and an Allen key in the package. They are not pre-installed in the hubs to allow for flexible shipping and custom bore configurations if requested.

Q: What is the maximum torque rating for this coupling?

A: The maximum static torque rating depends on the specific bore size selected, but generally ranges between 5Nm to 15Nm for standard small motor applications. Please refer to the detailed specification sheet for your specific size.

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