The invention relates to a brushless electric motor, comprising a stator and an armature with armature teeth and permanent magnets in accumulative order, the armature being made from a laminated core with grooves and the armature teeth and grooves have a particular embodiment. The commutation time for the phase windings of the stator is selected such that subsequent control of the commutation time is not necessary, the torque being approximately equal at the start and the end of an armature stage.
