Sprockets on a bearing?

[Bob Steele]

Originally Posted by dirtbikerxz

Is there such a thing as a sprocket on a bearing? The purpose is to have a lever on the same hex shaft of something else, but the lever is controlled by an external force, and not the movement of the hex shaft itself. it just uses the hex shaft as a structure.

FYI This type of application is called a "dead axle" You can certainly use the same axle to run a number of different spockets this way, each with their own power by chain or belt. It is used successfully by many teams.
Good luck!!