Ran into the problem of removing a bearing race from a blind 
hole while rebuilding the spindle of an old universal grinder. 
Remembered a post on Practical Machinist that mentioned running 
a bead of weld around the race, letting it cool, and the race 
would fall out when turned over. Tried it and it worked like
a charm! Thanks to Michael who posted it! Be careful not to 
weld the race to the housing! Used 2 sheet metal disks to protect 
the housing area near the bearing. The bearing housing fit back 
into the grinder perfectly, showing that this trick didn't change 
it's dimensions. Miked the bearing race and it had shrunk .001". 
Neat trick! Here are a few pictures to show the results.

blind_bearing_removal_1.jpg          Before - no way to press bearing race out
blind_bearing_removal_2.jpg          After welding - notice the sheet metal disks used to protect the housing
blind_bearing_removal_3.jpg          Housing, bearing and 1 of the 2 sheet metal disks
blind_bearing_removal_4.jpg          Both housings cleaned up
blind_bearing_removal_5.jpg          Draper & Hall grinder with spindle ass'y removed

Irby Jones
1/9/2006
irbyjones@cox.net