An apparatus comprising: a motor comprising: a rotor ; and a stator , where the rotor is located at least partially in a rotor receiving area of the stator, where the stator comprises at least one coil winding and a plurality of teeth , where the at least one coil winding is located on at least some of the teeth, where the teeth comprise a first set of the teeth and a second set of the teeth, where the teeth of the first set of teeth are longer in a radial direction from the rotor receiving area than the teeth of the second set of teeth, where the stator comprises a stator member forming the plurality of teeth, where a base of each of the teeth is located at a portion of the stator member which forms an outer perimeter wall of the stator member, where slots are provided in the stator member between the teeth, and where the outer perimeter wall has a general oval shaped axial cross-section, where the outer perimeter wall comprises: a length between two first opposite outer sides; a width between two second opposite outer sides; wherein the length is longer than the width; wherein the second opposite outer sides each consist of two generally flat exterior surfaces connected by a middle curved exterior surface , and wherein the middle curved exterior surface curves inwards towards the rotor receiving area; wherein the generally flat exterior surfaces on each of the second opposite sides are angled relative to each other; and wherein a length of the first opposite outer sides is smaller than a length of the second opposite outer sides. a rotor ; and a stator , where the rotor is located at least partially in a rotor receiving area of the stator, where the stator comprises at least one coil winding and a plurality of teeth , where the at least one coil winding is located on at least some of the teeth, where the teeth comprise a first set of the teeth and a second set of the teeth, where the teeth of the first set of teeth are longer in a radial direction from the rotor receiving area than the teeth of the second set of teeth, where the stator comprises a stator member forming the plurality of teeth, where a base of each of the teeth is located at a portion of the stator member which forms an outer perimeter wall of the stator member, where slots are provided in the stator member between the teeth, and where the outer perimeter wall has a general oval shaped axial cross-section, where the outer perimeter wall comprises: a length between two first opposite outer sides; a width between two second opposite outer sides; wherein the length is longer than the width; wherein the second opposite outer sides each consist of two generally flat exterior surfaces connected by a middle curved exterior surface , and wherein the middle curved exterior surface curves inwards towards the rotor receiving area; wherein the generally flat exterior surfaces on each of the second opposite sides are angled relative to each other; and wherein a length of the first opposite outer sides is smaller than a length of the second opposite outer sides. a length between two first opposite outer sides; a width between two second opposite outer sides; wherein the length is longer than the width; wherein the second opposite outer sides each consist of two generally flat exterior surfaces connected by a middle curved exterior surface , and wherein the middle curved exterior surface curves inwards towards the rotor receiving area; wherein the generally flat exterior surfaces on each of the second opposite sides are angled relative to each other; and wherein a length of the first opposite outer sides is smaller than a length of the second opposite outer sides. <EOS>