Machifit Flexible Shaft Coupling ID3/4/5/6/6.35/8mm x OD19mm x L25mm CNC Stepper Motor Coupler Connector
Flexible Shaft Coupling OD19mmx25mm CNC Stepper Motor Coupler Connector 3 To 8mm
Outside diameter: D=19mm
The size you can choose:
The structure is simple,easy to install,buffer,damping,convenient to disconnect.
The size is complete and the surface is smooth.
Connect servo motor,stepper motor,encoder,screw driving,machine,etc.
The size is refer to the hole,for example 4X6 is known as one head of the hole diameter is 4mm,the other is 6mm