Frame partially assembled
Structural frame, and axle "bearings"
The rectangular part fits in the bottom of the tank. The "tees" on either end are the axle "bearing" supports.
At top is the upper bearing carrier, the "tee" being the effective bearing. This end sits above the electrolyte.
At right, inside the rectangular frame, is the lower bearing. It is a 1/2 to 3/4" PVC slip coupler. It fits into the right end "tee", and is submerged in the electrolyte.
And again, no glue anywhere!