It is worth your while to check and see if the spring and Bakelite disc are in place. They keep pressure on the shaft to keep the shaft from wobbling. If the disc is missing, the spring is riding directly on the shaft cutting into the shaft it self. Clean out the old grease, repack and as recommended above, a turn Every once in a while. New Bakelite discs are near impossible to find. The piece to the right is a piece of Delrin that I cut down to use as a replacement.
