On 7/28/07, dale henderson <[EMAIL PROTECTED]> wrote: > i'm not sure on the technical terms but i think they are called the > communicator the little metal blades spinning on the edges near the housing. > a few of those came off and jammed there is a picture on my blog [Entry for > June 4, 2007] not sure if it was small rock or over heating > > regarding a trany for the PM i think i will proceed with my current setup, > but if i every make a bike for someone else i would use something to protect > it from lock up
This is yet another reason to band your rotor. You don't know if a rock got in there, but we *do* know that these motors can spit their clips off. Note that if the clips come off by themselves, there's little to be gained by keeping rocks out. Also realize that as high as EMs are typically geared, a clip doesn't have to be jammed against the case that hard to lock your wheel. We have a known plausible failure mode with potentially grisly consequences. Band your motor. I suspect most electric motor shops could do it. If anyone is near Redmond Oregon, talk to Jim at Hi-Torque Electric, http://www.hitorqueelectric.com/ . There's no one more capable or more friendly to the cause. Chris
