Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Couplings
Origin	-
Material	Aluminum Alloy with Elastic Rubber Element
Coupling Type	Figure-8 Jaw Coupling
Shaft Diameter Range	4mm to 10mm (Customizable)
Outer Diameter	25mm
Total Length	30mm
Max Torque	5 N·m
Max Speed	4000 RPM
Operating Temperature	-20°C to +80°C
Misalignment Compensation	Angular, Parallel, and Axial
Application	Servo Motors, Stepper Motors, Leadscrews

6 reviews

Anonymous

Mar 25, 2026

Rating: 5/5

Eliminated backlash issues

Replaced a rigid coupling with this elastic one and immediately noticed less noise and vibration. The flexibility handles minor misalignments without binding up.

Anonymous

Mar 22, 2026

Rating: 4/5

Good quality, slightly tight fit

The build quality is excellent for the price. The aluminum feels sturdy. I had to sand the bore slightly to get it onto my 8mm shaft, but once installed, it works flawlessly.

Anonymous

Mar 19, 2026

Rating: 5/5

Perfect fit for my CNC upgrade

This coupling fits perfectly between my NEMA 23 motor and the leadscrew. The figure-8 design absorbs vibration well, resulting in smoother cuts. Highly recommended for hobbyist CNC machines.

Anonymous

Mar 06, 2026

Rating: 4/5

Solid component

Does exactly what it is supposed to do. The rubber element looks durable. Only giving 4 stars because the set screws could be a bit longer for better grip on larger shafts.

Anonymous

Mar 04, 2026

Rating: 5/5

Excellent value

Bought two of these for a dual-motor setup. They are lightweight yet robust. Shipping was fast and the packaging protected the items well.

Anonymous

Mar 03, 2026

Rating: 5/5

Great for 3D printer Z-axis

Using this on the Z-axis of my custom 3D printer. It connects the stepper motor to the threaded rod smoothly. No wobble and very easy to install with the set screws.

5 FAQ

Q: Does this come with hex keys for installation?

A: Yes, each package includes a small hex key suitable for tightening the set screws on the coupling hubs.

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

A: Yes, the elastic spider insert is designed to be replaceable. You can purchase replacement inserts separately from our store under the 'Spare Parts' section.

Q: What type of lubrication is required for this coupling?

A: No lubrication is required for the elastic element. However, you may apply a light machine oil to the shafts before installation to prevent corrosion and ease future removal.

Q: Can this handle high-speed applications above 5000 RPM?

A: This specific model is rated for a maximum speed of 4000 RPM. For speeds exceeding this, we recommend our high-speed balanced series couplings to ensure safety and longevity.

Q: What is the maximum bore size this coupling can accommodate?

A: The standard model supports bores up to 10mm, but we can machine custom sizes upon request. Please contact us before ordering for specific dimensions.

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