Lead angle
Description
Lead is the axial advance of a helix or screw during one complete turn (360°). The lead for a screw thread is the axial travel for a single revolution. Pitch is defined as the axial distance between adjacent threads on a helix or screw.
Lead angle is the angle between the helix and a plane of rotation.
Variables
La | Lead angle (rad) |
l | Lead of the helix (cm) |
π | pi |
dm | Mean diameter of the helix (cm) |