Let's face it guys, every mechancal apparatus runs on bearings. And especially with some of the older equipment the maker is out of business and the parts are hard to find.
That does not have to be as big an issue as one might think.
As I mentioned in another thread(Hydralic Press?) the spindle bearings in my 318 were bad.
Yesterday I took the afternoon off and went to Standard Bearing in Des Moines.
I took in the old bearing, the clerk took his calipers and measured the inside bore and outside diameter.
He said how many do you want and I said 4,( I wanted a spare set on the shelf, for the next time. I have one spindle that has not had new bearings put in). He Said I have Chinese for $2.48 and Timkin for $9.48.
I chose the Timkin, since I use the 318 for hours at a time. I was in and out in less than 10 minutes.
All I'm trying to say is if you have the hard to identify or find bearings, don't despair.
Every city of any size has a bearing warehouse serving industry and or any business that has machines.
They can get what you need but are likely to have them on hand.