I found the help I needed immediately. It appears that permanent magnets and their physical arrangement are the clue. Better magnetic materials are more expensive and still researched, which one would be the best. The main difference in changing from a low voltage DCPM motor and higher voltage is the winding and the commutator. Higher voltages need more commutator bars.
Lower voltages use less.
For example, a 24 volt motor with 16 slots in the laminations would have a 16 bar comm. The name by which you'll be known in the forums. Click Here to find out why. Selling and recruiting forbidden. Inc. All rights reserved.