Reply by Dusty56

My original bearings are from New Departure (no longer in business).
I was able to get replacements from a company out of Florida….Less than $10 including shipping for the set : )
I hope your seals were rubber …mine are steel , and there doesn’t appear to be any way to pry them out and replace them without damaging them , and no guaranty that they would retain the grease afterwards.
My machine is vintage 1956-7 : ) I’ve reconditioned it and hope to post it here soon : )

-- When did quiet and quite become the same word ? I'm guessing about the same time as your and you're did.