Rolling the Roller

A question raised by one Fusion 360 user about how to make this curved roller https://grabcad.com/questions/round-modelling-in-fusion-360 If you download, please Like :) - I made 3 planes represents 3 loft profiles (one loft to cut the groove, and another loft to make the curved roller) - then I made parallel planes one at each end to provide proper Split Body plane, and Revolve plane to end the shape correctly, both split parts were hidden. - Circular pattern for both the groove, and another for the roller shape.