Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Couplings
Origin	-
Material	Aluminum Alloy 6061-T6
Coupling Type	Rigid Plum Diaphragm Bellows
Shaft Diameter Range	5mm to 25mm
Max Torque Capacity	15 Nm
Max Rotational Speed	8000 RPM
Backlash	Zero Backlash
Operating Temperature	-30°C to +100°C
Surface Finish	Black Anodized
Connection Method	Set Screw with Keyway Option
Application	Stepper Motors, Servo Motors, Lead Screws

6 reviews

Anonymous

Mar 30, 2026

Rating: 5/5

Reliable for industrial use

We bought several of these for our assembly line automation projects. They have been running continuously for months without failure. Excellent durability.

Anonymous

Mar 19, 2026

Rating: 5/5

Eliminated vibration issues

My previous flexible coupling was causing slight vibrations at high speeds. Switching to this rigid bellows type completely solved the problem. The machine runs much quieter now.

Anonymous

Mar 14, 2026

Rating: 5/5

Perfect fit for my CNC router

This coupling replaced a worn-out part on my stepper motor setup. The installation was straightforward, and the zero backlash is noticeable in the precision of my cuts. Highly recommended for hobbyist CNC machines.

Anonymous

Mar 09, 2026

Rating: 4/5

Good product, fast shipping

Arrived earlier than expected. The dimensions matched the spec sheet perfectly. Just make sure to measure your shaft diameter accurately before ordering.

Anonymous

Mar 08, 2026

Rating: 4/5

Solid build quality

The aluminum feels very sturdy and the anodizing looks professional. I deducted one star only because the set screws were slightly tight to thread initially, but once installed, it runs smoothly.

Anonymous

Mar 03, 2026

Rating: 5/5

Great value for money

Compared to branded alternatives, this offers the same performance at a fraction of the cost. It handles the torque of my NEMA 23 servo motor without any issues.

5 FAQ

Q: Does this coupling come with set screws included?

A: Yes, each coupling comes with two high-strength set screws pre-installed for immediate use.

Q: How do I clean the coupling if it gets covered in machining coolant?

A: The black anodized finish is resistant to most coolants. Simply wipe it down with a soft cloth and mild soap water. Avoid using abrasive cleaners or strong acids.

Q: Is there a keyway option available for higher torque applications?

A: Yes, we offer versions with single or double keyways. Please contact our sales team with your specific torque requirements to configure the right option.

Q: What is the maximum misalignment this rigid coupling can tolerate?

A: As a rigid coupling, it is designed for precise alignment. We recommend keeping angular misalignment under 0.5 degrees and parallel misalignment under 0.05mm for optimal lifespan.

Q: Can this be used with a 10mm motor shaft and a 12mm lead screw?

A: Absolutely. This model supports mixed bore sizes. You can specify 10mm for one side and 12mm for the other during customization or select the standard adapter kit.

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