Key Features: Lightweight Aluminum Alloy 5mm to 8mm size Popular with the Prusa Mendel 3D Printer Stronger than a printed coupler with more tolerance This aluminum flexible shaft coupler is used to replace the printed coupler to connect the motor shaft and the Z-axis threaded rod in Prusa Mendel and a few other printers. It is stronger than a printed coupler and provides more tolerance in Z-axis alignment.
Item Specifics Material: Aluminum
Alloy Type: Clamp
Inner Diameter: 8 mm ( 0.31 in)
Diameter: 20 mm ( 0.79 in)
Length: 25 mm ( 0.98 in)