Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Couplings
Origin	-
Material	304 Stainless Steel
Coupling Type	Rigid Extended
Max Torque Capacity	150 Nm
Shaft Diameter Range	8mm - 25mm
Overall Length	120 mm
Outer Diameter	45 mm
Mounting Style	Set Screw Clamp
Surface Finish	Polished
Operating Temperature	-20°C to 150°C
Application	Motor to Lead Screw Connection

6 reviews

Anonymous

Mar 28, 2026

Rating: 4/5

Solid build, tight fit

Great quality material and machining. The set screws hold very tightly. I deducted one star only because the inner bore was slightly tight on my 10mm shaft and required a bit of polishing, but otherwise excellent.

Anonymous

Mar 26, 2026

Rating: 5/5

Exactly as described

No surprises here. The dimensions match the listing perfectly, and the finish is smooth. It solved my shaft alignment issue immediately. Will buy again if needed.

Anonymous

Mar 20, 2026

Rating: 5/5

Perfect for my CNC upgrade

This rigid coupling is exactly what I needed to connect my stepper motor to the lead screw. The stainless steel construction feels very durable, and the extended length helped bridge a gap in my setup perfectly.

Anonymous

Mar 09, 2026

Rating: 5/5

High torque handling

I am using this in a high-torque application for a conveyor belt prototype. It has handled the load without any slippage or deformation. Highly recommended for industrial DIY projects.

Anonymous

Mar 08, 2026

Rating: 5/5

Precise alignment

The rigidity of this coupling ensures zero backlash in my 3D printer modification. Installation was straightforward with the included hex key. Very satisfied with the precision.

Anonymous

Mar 07, 2026

Rating: 4/5

Good value for money

For the price, you get a genuinely well-made stainless steel part. It's heavier than aluminum alternatives, which adds stability. Works great for my lathe conversion project.

5 FAQ

Q: Does this coupling come with set screws?

A: Yes, this rigid coupling includes two high-strength set screws per side for secure shaft attachment.

Q: Do I need to lubricate the inside before installation?

A: Lubrication is not required for the bore, but applying a small amount of anti-seize compound to the set screw threads can prevent galling.

Q: What is the maximum RPM rating?

A: While rigid couplings are generally robust, we recommend keeping operational speeds below 3000 RPM for optimal balance and longevity.

Q: Is this suitable for outdoor use?

A: Yes, since it is made from 304 Stainless Steel, it offers good corrosion resistance and is suitable for outdoor environments.

Q: Can this be used with a 30mm shaft?

A: No, the maximum supported shaft diameter for this specific model is 25mm. Using a larger shaft may damage the coupling.

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