A
Anonymous
Apr 04, 2026
Rating: 5/5
Perfect fit
Ordered the 5mm coupling. Fits tightly and holds well under load.
Description
Metal Universal Joint Coupling Steering Knuckle Universal Connector Toy Car Boat Model Drive Shaft Joint
Reviews
Attributes
| Brand | - |
| Category | Industrial Small Parts / Connectors and Fasteners |
| Origin | - |
| Material | 45# Carbon Steel |
| Surface Finish | Black Oxide Coating |
| Hardness | HRC 28-32 |
| Shaft Diameters | 3/4/5/6/8/10/12 mm |
| Fixation Type | Set Screw |
| Coupling Type | Rigid Sleeve |
| Application | Motor Shaft Extension |
| Package Weight | 50g (Approx) |
| Color | Black |
| Country of Origin | China |
5 reviews
A
Anonymous
Mar 08, 2026
Rating: 5/5
Exactly as described
Used for a motor shaft extension. No wobble at all.
A
Anonymous
Feb 24, 2026
Rating: 4/5
Good quality steel
Solid construction. One set screw was a bit tight but works fine.
A
Anonymous
Feb 17, 2026
Rating: 5/5
Reliable component
Great for DIY CNC projects. The black oxide prevents rust.
A
Anonymous
Jan 30, 2026
Rating: 3/5
Check your measurements
I ordered the wrong size initially. Product is fine, just my mistake.
5 FAQ
Q: Is this flexible enough for misalignment?
A: No, this is a rigid coupling. Shafts must be aligned precisely.
Q: Can I use this to connect two different shaft sizes?
A: Yes, select the conversion option during checkout.
Q: What is the outer diameter?
A: It varies by shaft size, please check the specific size chart.
Q: Is this suitable for high torque applications?
A: It is designed for moderate torque typical of NEMA motors.
Q: Does it come with an Allen key?
A: Yes, a small hex key is included in the package.
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