This motor has a 365mm leadscrew integrated with the motor rotor. By integrating the two rather than using couplings to join a separate motor and leadscrew, both eccentricity and resonance are reduced, giving a smoother more accurate axis. These motors are ideal for use as Z axes, but can also be used in X and Y if really rigid, smooth axes are required and high speed is not needed.
As standard, these motors are supplied with a Delrin lead nut. However, this can be upgraded to an anti-backlash nut, which removes any trace of play between the screw and the nut, ideal if your printer uses retraction vertical lift or if you are using this motor in X or Y.