Rotor for rotating electrical machine

A rotor for a rotating electrical machine, comprising:

• a plurality of rotor cores each formed by laminating many steel plates, the plurality of rotor cores being arranged in a rotation axis direction, to constitute the rotor;
• and
• a plurality of permanent magnets axially divided by the rotor cores and circumferentially arranged on each of the rotor cores, to circumferentially form magnetic irregularities,
• the permanent magnets being circumferentially shifted rotor core by rotor core by a predetermined angle, to form a skew structure and being spaced from the rotor cores that face the permanent magnets in the rotation axis direction.