Once I needed to make some turn tables to be mounted flush to the floor for moving trolleys around that ran in a guide track so the direction could be changed
to do this I also needed to make a seal to protect the inner workings of the turn tables the bearings and posilocks
So I made a set up to mount my bead roller on the turn table.
the turn table is 1320 mm in diameter
the seal is a 10 mm O ring