I had both of mine die in about 3 weeks. but they are used as a vacuum source for my cnc router so they can run all day long sometimes. I had them for 3 years or so and ran them at least 600 hours maybe more.
plus they were always under load too.
but I found granger sells a replacement motor for only about 172.00 shipped and it drops right in. I only had to splice the plug onto the new motor. I was going to order the motor then next day when my other fein died. I was not sure I could get it all working so I had to buy another one. so I order the motor and Granger delivers it the next day and it was easy.
So now I have three working feins and one that still needs a motor.
so if anyone needs one this works
http://www.grainger.com/Grainger/wwg...headSearch.y=4