[KTL]

You have to coax the inner hub/gear off the snout of the cam by pulling on it. The inner gear is keyed to the cam snout via a woodruff key. It's a half-moon shaped chunk of steel that sits in a female half-moon shape machined into the cam snout.

Since your inner gear got sheared, it leaned on the woodruff key quite hard and may make removal of the gear a bit hard. A small two jaw gear puller would work to draw the gear off the cam.