Could a hockey puck be bored out and drilled and be used as a synthetic outer bearing? Looks like hockey pucks are made out of vulcanized rubber,I did a search on uhmw and found some types are made with rubber.with hockey pucks costing $1.50 each it sure would be a cheap alternative.Hockey pucks have been used as body mounts,tires are made of vulcanized rubber,A grease fitting could be added.Just a thought ,heck a brass bushing could be installed.Any thoughts?