Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Couplings
Origin	-
Material	Aluminum Alloy & Nylon Plastic
Coupling Type	Elastic Flexible Jaw Coupler
Outer Diameter	25 mm
Total Length	30 mm
Shaft Bore Sizes	5mm, 6mm, 8mm, 10mm (Customizable)
Max Torque	5 N·m
Max Speed	4000 RPM
Operating Temperature	-20°C to +80°C
Misalignment Tolerance	Angular: 2°, Parallel: 0.5mm
Application	CNC Motors, Encoders, 3D Printers

6 reviews

Anonymous

Mar 28, 2026

Rating: 4/5

Good value, fast shipping

Works great for connecting my stepper motor to the lead screw. One set screw was slightly stripped, but I had a replacement handy. Otherwise, no complaints.

Anonymous

Mar 24, 2026

Rating: 5/5

Reliable for precision work

I've tested several brands, and this one offers the best balance of price and performance for miniature winding applications. Highly recommended.

Anonymous

Mar 15, 2026

Rating: 4/5

Solid little coupler

Using this on a custom 3D printer extruder. It handles the torque well. I wish it came with an Allen key, but that's a minor issue.

Anonymous

Mar 14, 2026

Rating: 5/5

Perfect fit for my CNC project

The build quality is excellent. The aluminum hubs are sturdy and the nylon spider provides just the right amount of flexibility to handle minor misalignments without vibration.

Anonymous

Mar 09, 2026

Rating: 5/5

Exactly as described

Dimensions matched the spec sheet perfectly. Easy to install and the set screws hold tight even after hours of continuous running.

Anonymous

Mar 02, 2026

Rating: 5/5

Smooth operation

Very smooth rotation with zero backlash noticeable in my encoder setup. The lightweight design helps reduce inertia on the motor shaft.

5 FAQ

Q: Can this handle a 12mm shaft?

A: This specific model supports bores up to 10mm. For a 12mm shaft, please check our 'Large Bore' series in the store catalog.

Q: Is the nylon part replaceable if it wears out?

A: The nylon spider is press-fitted and not designed to be user-replaceable. However, with normal usage within torque limits, it has a very long lifespan.

Q: Does this come with set screws included?

A: Yes, each coupling comes with four pre-installed set screws (two per hub) suitable for standard metric shafts.

Q: What is the hardness of the aluminum alloy used?

A: We use 6061-T6 aluminum alloy, which offers excellent strength-to-weight ratio and corrosion resistance for industrial applications.

Q: Do you offer bulk discounts for orders over 50 units?

A: Yes, we offer tiered pricing for bulk orders. Please contact our sales team directly or add 50+ units to your cart to see the automatic discount applied.

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