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  1. Bigjohn01

    Rewinding PM motor to change voltage

    Found the answer to my situation. Acquired a 24v motor presently used by a manufacturer of electric drives for reels. Also found a 12v starter motor used on 6.5hp Briggs lawnmower engines. The two armatures are the same diameter and the 12v laminations are almost half again longer than the 24v...
  2. Bigjohn01

    Rewinding PM motor to change voltage

    I am looking for a motor to power a 6/0 Penn fishing reel. Years ago, some fishermen in my city used a geardrive from WW2 aircraft to build some successful units. Needless to say, they're getting scarce and the motors are no longer available. They are 24-27v, field wound, shunt wired and very...
  3. Bigjohn01

    Rewinding PM motor to change voltage

    Thanks a zillion Clyde. I've been after that answer off and on for 2 years. That Mabuchi info looks like it may answer some more of my curosity.
  4. Bigjohn01

    Rewinding PM motor to change voltage

    This is a fractional horsepower motor made for starting model airplane engines. The rpms are not unusual. Many of the smaller motors are up in the 15000-18000 range
  5. Bigjohn01

    Rewinding PM motor to change voltage

    I think I understand why the rating will be cut in haif, which I do'nt want to do.By halving the wire size, the resistance of the original turns will be doubled. Doubling the length will make the resistance 4 times the original,which results in the 24v current being i/4 the value at 12v. My...
  6. Bigjohn01

    Rewinding PM motor to change voltage

    Do I use the same wire size? I assume the new wire has to be one length, ie, I cannot add the additional turns in parallel with the existing ones. Also, I'm curious about whats happening electricaly.
  7. Bigjohn01

    Rewinding PM motor to change voltage

    I have a 12/24vdc PM motor which turns 5500rpm,no load, at 12v and 11000 at 24v. My power supply is 24vdc. Can I rewind the armature for 24v and reduce the speed to about 5000rpm. If so, can anyone tell me how or where I might find that info?
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