I did have the thought of adding a thermal cutoff (they are pretty cheap) but it occurred _after_ I put the motor back together.? It was such a pain to re-install the motor I will have to wait awhile until the pain is a distant memory before I do that.
Omissions like that are pretty irksome.? Some time back the motherboard on one of our computers blew up because the manufacturer saved $1 by using a cheap fan instead of a good one.? Same deal here, a thermal cutoff costs less than $1.