Mechanical Engineering

The helix angle is the angle between any helix and an axial line on its right, circular cylinder or cone.

The helix angle references the axis of the cylinder, while the lead angle references a line perpendicular to the axis.

The helix angle is the geometric complement of the lead angle.

<p>The helix angle can be found by unraveling the helix from the screw, representing the section as a right triangle, and calculating the angle that is formed.</p> Signup and view all the answers

<p>The helix angle can be expressed as: $\text{Helix angle} = \arctan \left(\frac{2\pi r_{m}}{L}\right)$ where $l$ is the lead of the screw or gear and $r_m$ is the mean radius.</p> Signup and view all the answers