Unifizz D9mm x L20mm Bore Rigid Coupling, Copper Shaft Coupler Connector,Wheel Coupling Couple, 2mm to 3mm

• [Size]: Connection diameter: 2mm to 3mm, Length: 20mm, Outer diameter: 9mm. Thread Size: M3.
• [Material]: Made of high quality copper, hard, wear resistant, corrosion resistant, durable.
• [Superior Performance] Top-tight rigid coupling with high rigidity, high torque, low inertia and high sensitivity.
• [Shaft Application]: To connect two shafts of different diameters, including to a motor shaft, or to connect shafts of different diameters.
• [Wide Application]: Widely used in fans, 3D printers, DIY robots, CNC machine tools, stepper motors, etc. Shaft couplings are similar to rigid clamping couplings for fixing bearings and sprockets to shafts and are used in motor and gear assemblies.

Please note: The rigid coupling basically does not allow radial and axial displacement, and the position of the two shafts must be fully adjusted during use. Specifications: ①Material: Copper. ②Color: Brass. ③Connection Diameter: 2mm to 3mm. ④Length: 20mm. ⑤Outside Diameter: 9mm. ⑥Thread Size: M3. ✔Package Content: 1 x Rigid Coupling.