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[TCML] sync. motor







   I have a G.E. 1/3hp motor,  Cat.No.C367, Mod.-5KC35MN73H, capacitor start.  The diameter of the armature is 3.115.  I machined 4 flats .910 or 7/8"wide, indext 90dg. on center.  Put it back together and it still runs 1725 rpm max. Have variace and good mechanical tacometer, will slow down at lower volts but will not run higher, so -
   1- Do I need to enlarge the flats ?
   2- Is there a formula to figure the flats ? 
   3- Did I use the wrong type motor ?    The set up was brutal on my antique horizontal mill, but now have that part figured out. I looked through the old postings and couldn't get to the right info. Some one even said " It's almost impossible to screw up" or something like that.  Have a couple more motors, to test thier theory ; ).  Realy apreciate the knowledge you guys share.   Bob
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