Apparatus for an electric machine

A rotor assembly for an electric machine, the rotor assembly comprising a rotor and a plurality of magnets, the plurality of magnets being configured to form a plurality of rotor poles and each rotor pole having a central pole axis extending in a radial direction from a longitudinal axis of the rotor;

• wherein each rotor pole comprises:
• a first magnet layer comprising one or more first magnet, the one or more first magnet comprising a central first magnet having a first transverse axis disposed substantially perpendicular to the central pole axis;
• and
• a second magnet layer radially inset from the first magnet layer and comprising two or more second magnets, the two or more second magnets comprising a pair of inclined second magnets each having a first transverse axis extending at an acute angle to the central pole axis;
• wherein, in relation to the central pole axis, a portion of each of the inclined second magnets is disposed inboard of an end of the central first magnet to form an overlapping arrangement.