Understanding the utility of Projected curves feature and Revolved cut feature in Solidworks

Objective: REAR WHEEL CAD MODEL= https://drive.google.com/open?id=1QgNWvn-cWhs-imwERK_uP9MqMjcMFE78 THE MODELING IS BASED ON THE SIMILAR PROCEDURE AS I CREATED FRONT WHEEL..ONLY ONE PART WAS ADDED HERE i.e, SPROCKET.. THE MODEL IS COMPOSITION OF DIFFRENT PARTS . THE PARTS ARE AS FOLLOWS:- - RIM OF WHEEL -BRAKE ROTOR - CALLIPER…