Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Connectors and Fasteners |
| Origin | - |
| Material | 6061 Aluminum Alloy |
| Color Options | Red, Blue, Green, Black, Silver |
| Inner Diameter | 5mm, 6mm, 8mm, 10mm |
| Outer Diameter | 19mm |
| Total Length | 25mm |
| Weight | 15g per piece |
| Surface Treatment | Anodized |
| Compatibility | NEMA 17, NEMA 23 Motors |
| Package Includes | 2 x Couplings, 4 x Set Screws |
| Brand | TechFit Components |
Anonymous
Apr 19, 2026
Rating: 5/5
Great quality aluminum
Solid construction. The set screws hold tight without stripping. Highly recommend for DIY projects.
Anonymous
Apr 14, 2026
Rating: 4/5
Good but check sizing
Quality is good, but make sure you measure your shaft exactly. I ordered 8mm for a slightly worn 8mm shaft and it was tight.
Anonymous
Mar 13, 2026
Rating: 5/5
Vibrant colors
The blue color is exactly as pictured. Adds a nice touch to my RC boat setup.
Anonymous
Feb 15, 2026
Rating: 5/5
Sturdy and reliable
Been running these on my engraving machine for months without any slip or wear. Very satisfied.
Anonymous
Feb 11, 2026
Rating: 5/5
Perfect for my 3D printer
These couplings fit my NEMA 17 motor shaft perfectly. The anodized color matches my frame nicely.
Q: Does the color fade over time?
A: The anodized finish is durable and resistant to fading under normal operating conditions.
Q: Will this fit a 6.35mm shaft?
A: No, this specific listing is for standard metric sizes (5mm, 6mm, 8mm, 10mm). Please check our imperial series for 6.35mm.
Q: Can I use this for high RPM applications?
A: Yes, these are balanced for rigid coupling applications up to 4000 RPM depending on shaft alignment.
Q: What is the maximum torque rating?
A: For the 8mm model, the static torque rating is approximately 15 Nm. Please consult the spec sheet for specific sizes.
Q: Are set screws included?
A: Yes, each coupling comes with two set screws suitable for the shaft size.
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