Motor bearing for Shopsmith Mark V 1-1/8 hp Emerson motors with a single bearing outboard, and bushing inboard
Run your motor by itself and see if the bearings sound loud or rough. You may need to remove the motor sheave to be certain, since the sheave or spacer can be a source of noises.
My motor repair video hosted on YouTube is available for purchase here in the web store.
This is for a single 6203zzc3 bearing