English: Diagram of typical w:Lynch motor w:permanent magnet w:brushed DC electric motor (drawn with 72 poles). This shows the w:armature (electrical engineering) that spins, and its interface with the the w:brush (electric) arrangement and the sub-divided w:ferrite cores. Two example w:electric current flowes are shown in red and blue from the commutator (electric) brushes in the centre out via the front surface between the iron pieces to the w:crimp (joining) locations at the edge, then back to the centre via the rear side of the armature and to a brush of the opposite w:electrical polarity 135 degrees afterwards.