Electric motor- rotor- cooling fin broken

Author	Message
Warpspeed Guru Joined: 09/08/2007 Location: Australia Posts: 4406	Posted: 11:44pm 28 Dec 2011       I would not worry about the broken fins, or the effect on balance. You can feel the weight of that iron rotor, and the weight of the broken off fin, which is absolutely negligible in comparison to the weight of the rotor. It is not going to dangerously overheat, the loss of a fin (or two) will hardly matter. Most of those small motors have no fins at all, and work fine. The pump only works for very short periods anyway. Just put it back together and it will run for many more years, if the bearings are o/k. Cheers,  Tony.