Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Couplings
Origin	-
Material	Aluminum Alloy
Outer Diameter	19 mm
Length	25 mm
Shaft Diameters	3, 4, 5, 6, 6.35, 7, 8, 10 mm
Type	Elastic Winding Coupling
Application	Encoder, Engraving Machine, CNC
Torque Capacity	Medium Duty
Operating Temperature	-20°C to 80°C
Surface Finish	Anodized Black
Package Weight	45 grams

6 reviews

Anonymous

Mar 30, 2026

Rating: 5/5

Great for small motors

Compact size fits perfectly in tight spaces. The D19 L25 dimensions are exactly as listed. Very happy with this purchase for my laser engraver modification.

Anonymous

Mar 23, 2026

Rating: 4/5

Good value, fast shipping

The coupling works well for my encoder setup. It's lightweight and the aluminum feels durable. Took off one star because the set screws were a bit tight to thread initially, but they hold securely now.

Anonymous

Mar 23, 2026

Rating: 5/5

Excellent precision

I use these in a custom robotics project. The elastic winding design absorbs minor misalignments perfectly. No vibration issues at high speeds. Will buy again.

Anonymous

Mar 13, 2026

Rating: 4/5

Works as described

Bought this to replace a broken plastic coupling. The metal upgrade has made my 3D printer extruder much more reliable. Just ensure you measure your shaft sizes correctly before ordering.

Anonymous

Mar 11, 2026

Rating: 5/5

Perfect fit for my CNC router

Ordered the 5mm to 8mm version for my engraving machine upgrade. The machining quality is excellent, and it fits snugly without any wobble. Highly recommended for hobbyist CNC projects.

Anonymous

Mar 01, 2026

Rating: 5/5

Solid construction

Very impressed with the build quality for the price. The anodized finish looks professional. Installed on a 6.35mm motor shaft and it runs smooth as butter.

5 FAQ

Q: Do you offer bulk discounts for 50+ units?

A: Yes, we offer wholesale pricing for bulk orders. Please send us a message with your required quantities for a custom quote.

Q: Does this coupling come with set screws?

A: Yes, each coupling includes two set screws for securing the shafts.

Q: Can I use this for a 12mm shaft?

A: No, the maximum shaft diameter supported by this model is 10mm. Please check our store for larger sizes if needed.

Q: What is the return policy if the size is wrong?

A: We accept returns within 30 days provided the item is unused and in original packaging. Please contact us for a return label.

Q: Is this suitable for high-speed applications?

A: This coupling is designed for medium to high-speed applications typical in engraving machines and encoders, usually up to 4000 RPM depending on balance.

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