Attributes

Brand	-
Category	Industrial Small Parts / Connectors and Fasteners
Origin	-
Material	304 Stainless Steel
Surface Finish	Polished
Available Bore Sizes	4mm, 5mm, 6mm, 7mm, 8mm, 10mm
Outer Diameter	25 mm
Total Length	30 mm
Hardness	HRC 20-25
Weight per Unit	Approx. 45g
Package Quantity	2 Pieces
Set Screws	Included (Allen Key Type)
Primary Application	Stepper Motors and Shaft Links

5 reviews

Anonymous

Apr 03, 2026

Rating: 5/5

Solid Material

True stainless steel, not plated. Very happy with the quality.

Anonymous

Mar 18, 2026

Rating: 5/5

Great Value

Better price than local hardware stores and shipped quickly.

Anonymous

Feb 23, 2026

Rating: 5/5

Perfect for CNC

Using these for my CNC router build. They hold up well under load.

Anonymous

Feb 11, 2026

Rating: 4/5

Good but tight

Quality is good, but the set screws were a bit tight to thread initially.

Anonymous

Feb 08, 2026

Rating: 5/5

Excellent Precision

These couplings fit my 5mm shaft perfectly. No wobble during operation.

5 FAQ

Q: What is the return policy?

A: We offer a 30-day return policy if the item is unused.

Q: Do you sell a 12mm version?

A: Currently, we stock up to 10mm. Please check our store for updates.

Q: Does this come with the Allen key?

A: Yes, a small Allen key is included in the package for tightening.

Q: Is the bore exact size?

A: Yes, the bore is machined to standard H7 tolerance.

Q: Can this handle high RPM?

A: It is suitable for standard motor speeds up to 4000 RPM.

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