Which of the statements listed applies to the quill shaft shown in the illustration? Illustration SE-0005

Correct Answer: Option C — It permits axial movement between the high speed gear and low speed pinion.

A quill shaft incorporates high torsional flexibility and slender design, permitting limited axial and angular movement between the high-speed gear and low-speed pinion. This compensates for differential thermal expansion and minor mechanical misalignments within the reduction gear train without inducing excessive bending stresses.