A couple weeks back I noticed a lack of pool pump humming - upon investigation, the timer was calling, voltage was present, but no pumping!
I took it apart and found this bushing had worn out, fell into 2 pieces, and jammed together, stopping the pump from rotating. It is placed in between the plastic rotor & stator parts of the pump. I put it all back together, bushingless, and it's been running fine since.
Do I need to replace? can i get away without it? the pump is working well, no notieable change in pressures, and no odd noises.
I assume worst case, the rotor/stator will be less stable and may wear on each other or cause damage to seals/bearings.