The plate analysis - of the machine

57 brushless motor plate, plate size the same, is 6 trough, is the fractional slot concentrated winding form are used, most of the rotor using 4 pole, also have use eight pole, magnetic steel are mostly used bond rubidium iron boron magnets. I just have a little difference, tooth width that is respectively with three laminations in the magnetic flux density under the condition of unsaturated make brushless motor performance.