Dear experienced Maya users!

After years of work with mostly technical 3D-software I've finally switched to Maya and am now learning Maya modeling techniques.
As one of my first exercises I am trying to create what basically is a cylinder with a radial groove crossed by a cylindrical "ripple" with its edges rounded against the groove. (Please look at the attached picture).

I found this easy enough to model in Rhino or in one of the technical programs (SolidWorks, Catia etc.). But how is it done in Maya? The limitations of the NURBS trimmed surfaces obviously don't allow me to get the fillet right and I'm just not happy with creating that ripple by only moving control vertices, as that doesn't give me the geometrical exactness I would like to have. I really want that ripple to look like a cylinder.

Is there a better way to do this? Is NURBS the right way to start in the first place?

I would be very grateful if you could help!!

Greetings,
Nebogipfel