These bearings were About 18" od and 3" deep by 1/2" thick at thinnest. The big motor shops have them from large vertical motors.
Man...a bearing that size --you'd have to have a darn good hammer arm or a good trip hammer to bust a bearing down like that....let alone the amount of annealing it would take prior to forging it. That 52100 is good steel but boy is it hard to work. It makes my arm hurt just thinking about it.
"The government did not write the constitution to give rights to the people. The people wrote the constitution to limit the government's power."
Excellent work,, it is nice to see you and kimberfan are still at making fine knives,,, I can only imagine how much time you have in that bearing blade, I really enjoy see the blade smiths art, thank you.
Right now I mostly use old files. I like the way they look and recycling something useful into something useful is pretty cool. I could just bonk them out of a store bought steel but it takes a little bit of the imagination out of it.