Brand New Byrd Shelix head with full set of bearings  for your Delta 37-220 Jointer.  Make sure you measure shaft and confirm date as the 37-220 specs change between years.  The Byrd head has to be ordered specifically to your model.

Bearings included.  Factory installed where applicable.  (when they can, they will press a new bearing on one or both sides at no extra charge)    Now is the time to change your bearings.