Description: 【Safe clamping design】: Flange Shaft Coupling adopts clamping method to ensure long term stability and prevent wheels from loosening, suitable for motors without keyways 【Material】: Shaft Axis Fittings is made of high strength aluminum alloy, providing good durability and reliability for industrial applications 【Package】: Contains 1 Guide Shaft Coupler, which can provide you with the tools you need for your project or repair work 【Premium】: Motor joint connector is professionally manufactured, stable performance and long service life 【Function】: Rigid Flange Coupling can fix the shaft to the flat surface and easily install other accessories Specification: Material:Zinc Alloy Size Chart:Outer diameter 5.68cm/2.24inch, hole diameter 0.6cm/0.24inch, shaft hole diameter 0.5cm/0.20inch, shaft hole diameter 0.6cm/0.24inch, outer diameter 2.5cm/0.98inch, total length 5.68cm/2.24inch Package Includes: 1 Rigid Flange Coupling Note: Please allow slightly errors due to manual measurement and different monitors.