Question

What is axial play?

(a) Freedom of spindle movement in axial direction

(b) Freedom of spindle movement perpendicular to axial direction

(c) Freedom of spindle movement in direction of cutting forces

(d) Freedom of spindle movement in horizontal direction

I have been asked this question in homework.

My question is based upon Alignment Tests on Lathe topic in division Machine Tool Metrology of Engineering Metrology

Answer 1

The correct choice is (a) Freedom of spindle movement in axial direction

To elaborate: Meaning of axial play is the indispensable freedom of movement of spindle in the axial direction to prevent it from seizing by heating. It is different from axial slip. Axial slip is the axial movement of spindle which follows the same pattern.