D9mm x L20mm Rigid Coupling 3.17mm to 3.17mm (brass color), Motor Wheel Connector Pure with Screws, Suitable for Motor Motor Rigid Coupling, 1pcs

• Size: Outer diameter X length: D9mm x L20mm, connection aperture: 3.17mm to 3.17mm.
• Made of high-quality brass, with high torque rigidity, low inertia and good sensitivity.
• Cylindrical rigid coupling, with 4 fastening holes on the surface, equipped with 4 machine screws and 1 matching hexagon wrench.
• It connects two shafts to transmit power and torque, and play a protective role when the load is too large. It is suitable for blowers, 3D printers, DIY robots, CNC machine tools, stepper motors, etc.
• Warm reminder: Rigid type basically does not allow eccentricity, and must be fully adjusted during use.

Features: Size: Outer diameter X length: D9mm x L20mm, connection aperture: 3.17mm to 3.17mm. Made of high-quality brass, with high torque rigidity, low inertia and good sensitivity. Cylindrical rigid coupling, with 4 fastening holes on the surface, equipped with 4 machine screws and 1 matching hexagon wrench. It connects two shafts to transmit power and torque, and play a protective role when the load is too large. It is suitable for blowers, 3D printers, DIY robots, CNC machine tools, stepper motors, etc. Warm reminder: Rigid type basically does not allow eccentricity, and must be fully adjusted during use. Specifications: Color: Brass color. Material: Brass. Size: D9mm x L20mm. Connection aperture: 3.17mm to 3.17mm. Note: Due to the light and screen difference, the item's color may be slightly different from the pictures. For manual measurement, there may be an error of 0.03mm-1mm, thank you for your kindly understanding. Package included: 1 x coupling connector. 1 x hex wrench. 4 x screws.