A few years ago, I found a 10 mm deep socket on the pavement, walking down the main street in Granby, first city at west of Waterloo. Back home, I put in in a drawer with other sockets, saying to myself that it could be useful some day.
Well that day has come, it was perfect to put the bearing back on the shaft !
Bearing of second motor is a lot more stubborn, I have put penetrating oil 2-3 times since yesterday but it doesn't seem to do any good , I'm still unable to remove it.