Material: Brass; Thread Size: M3; Outer Diameter: 9 mm / 0.3 Inch; Length: 20mm / 0.79 Inch; Inner Diameter: 3.17mm to 3.17mm / 0.12 Inch to 0.12 Inch; Packing List: 4 Pcs x Shaft Coupler, 8 Pcs x Screws
Advantages: The shaft coupling joint is made of brass Iron rust-proof and wear, resistant to corrosion, not easily oxidized, extended use, has high torque with rigidity, low inertia, and excellent sensitivity, keeping the shaft stable and secure
Instruction: Easy to install, the motor shaft coupling connector can seamlessly connect optical shafts of different diameters
Application: The brass transmission joint is used for connecting the motor shaft and the hexagon wheel of airplanes, boats, robots, cars, and other RC models, it is suitable for motors, generators, RC models, metalworking, and other mechanical drive systems
NOTE: The rigid type does not allow eccentricity, and it must be fully adjusted shaft coupler during use