The sub assemblies and components that make up this Rear Wheel/chain include this Drum-assy,rear Brake, the most expensive part.
Parts such as the Rear Wheel/chain: Bearing-ball,#6205ug, Bolt, Stud, Spring, Brke Shoe are included in the En500c7 Vulcan500ltd 2002 Usa California Canada Rear Wheel/chain parts fiche.
In this schematic the "Stud" is used most often.