New syle clamping flexible shaft coupler 5mm-8mm

Different clamping construction allows more contact area between coupler and shaft, allowing better grip and more torqueThose are used to connect shaft or lead screw to stepper motor. Mostly used in 3dprinters and CNC. Helical (spiral) compliant construction of this coupler allows absorption of parallel or angular misalignment and shaft end-play by spring action.Please remember, when used in vertical arrangement (Z axis) helix will sag due to gravity and rest on parallel surfaces of end of shafts and lead screw or helix itself cancelling capacity to compensate angular misalignment.We recommend putting small bearing ball between shaftsColor: SilverType: Flexible Shaft CouplingMaterial: Aluminium AlloyClamps around shaft allowing better centering and more grip, extra set screw allows to press against Dgrove on shaftInner Diameter: 5mm x 8mmOutside Diameter: 19mmLength: 25mm