believe me ,, even if it's JUST a bearing , it's enough ,,
SAME thing happened to me, i baught my tcat 2 weeks before christmas and the crank let go on me 3 weeks later ,,,,,,and only couple bearings were worn,,,,,,,but you can't take the chance with bearings like that ,cause then you might do something worse like split the base, wouldn't want that
Hope it works out for you