Camshaft and eccentric ring 1 or 2 pieces of key stock

Sleepyhead 416 just a picture would help. I bought one locally a few weeks back but once you insert it into the camshaft and slide the timing sprocket/gear on there is no part of the key showing past the sprocket/gear. Should the recess that is cut for the key on the camshaft be past the end of the camshaft "snout"?