So I figured that I should update this thread. I ordered bearings both 5/8 and 16mm as per Peter Kelly's advice from Mcmaster -Carr. I also got a piece of hard felt. The bearing "cage" has two pieces of felt that fit between the ways at each end,these keep the cage centered as well as clean the ways. Got my parts yesterday and went at it,end result is my slider is back together and works real well. I also learned a lot in the process. I am really impressed with the way this saw is designed and built. It probably will not be my last piece of minimax machinery. Thanks for all the replies and offers of help, Mike.