Help Required to create a Helical Path.

Dear Experts,

One of our component needs a Spherical Helical path from 0° to 59.7° created from a Ball end mill of Ø5.55625 on the bore of Ø19.63, The path is shown in a straight path.

Have tried the Wrap but in vain cause we cannot create the spherical end.

We tried with the sweep cut, but cannot get the depth.

Can anyone suggest or help me create such a helical path.

Attached the drawing.

Regards.

Dear Experts,

One of our component needs a Spherical Helical path from 0° to 59.7° created from a Ball end mill of Ø5.55625 on the bore of Ø19.63, The path is shown in a straight path.

Have tried the Wrap but in vain cause we cannot create the spherical end.

We tried with the sweep cut, but cannot get the depth.

Can anyone suggest or help me create such a helical path.

Attached the drawing.

Regards.