Moment of inertia of shaft is the measure of an object’s resistance to changes in its rotation, influencing natural frequency of free transverse vibrations. And is denoted by Ishaft. Moment of inertia of shaft is usually measured using the Kilogram Square Meter for Moment of Inertia. Note that the value of Moment of inertia of shaft is always positive. Typically, the value of Moment of inertia of shaft is greater than 0.