A motor (100, 100A) comprising: a rotor rotatable about a rotation axis, the rotor having a plurality of magnetic poles in a circumferential direction about the rotation axis, and a stator disposed on an outer side of the rotor in a radial direction about the rotation axis, the stator having a plurality of teeth (12, 12A) in the circumferential direction, wherein the plurality of magnetic poles are same in number as the plurality of teeth (12, 12A); wherein each of the plurality of teeth (12, 12A) has a first side portion (121, 121A) which is an end edge in a first direction in the circumferential direction, a second side portion (122, 122A) which is an end edge in a second direction opposite to the first direction, and a tooth tip (13, 13A) facing the rotor; wherein each of the plurality of teeth (12, 12A) has a first protruding portion (21, 21A) and a second protruding portion (22, 22A) on the tooth tip (13, 13A) side, the first protruding portion (21, 21A) protruding in the first direction from the first side portion (121, 121A), the second protruding portion (22, 22A) protruding in the second direction from the second side portion (122, 122A); wherein the tooth tip (13, 13A) has a first end in the first direction and a second end in the second direction, and a gap between the second end and the rotor is wider than a gap between the first end and the rotor; and characterized in that: when a reference line is defined as a straight line passing through the rotation axis and perpendicular to a straight line in the radial direction passing through a middle position between the first side portion (121, 121A) and the second side portion (122, 122A), a distance from the reference line to a border between the first protruding portion (21, 21A) and the first side portion (121, 121A) is longer than a distance from the reference line to a border between the second protruding portion (22, 22A) and the second side portion (122, 122A); each of the plurality of teeth (12, 12A) has a crimping portion, and a distance from the reference line to the crimping portion is longer than the distance from the reference line to the border between the first protruding portion (21, 21A) and the first side portion (121, 121A). a rotor rotatable about a rotation axis, the rotor having a plurality of magnetic poles in a circumferential direction about the rotation axis, and a stator disposed on an outer side of the rotor in a radial direction about the rotation axis, the stator having a plurality of teeth (12, 12A) in the circumferential direction, wherein the plurality of magnetic poles are same in number as the plurality of teeth (12, 12A); wherein each of the plurality of teeth (12, 12A) has a first side portion (121, 121A) which is an end edge in a first direction in the circumferential direction, a second side portion (122, 122A) which is an end edge in a second direction opposite to the first direction, and a tooth tip (13, 13A) facing the rotor; wherein each of the plurality of teeth (12, 12A) has a first protruding portion (21, 21A) and a second protruding portion (22, 22A) on the tooth tip (13, 13A) side, the first protruding portion (21, 21A) protruding in the first direction from the first side portion (121, 121A), the second protruding portion (22, 22A) protruding in the second direction from the second side portion (122, 122A); wherein the tooth tip (13, 13A) has a first end in the first direction and a second end in the second direction, and a gap between the second end and the rotor is wider than a gap between the first end and the rotor; and when a reference line is defined as a straight line passing through the rotation axis and perpendicular to a straight line in the radial direction passing through a middle position between the first side portion (121, 121A) and the second side portion (122, 122A), a distance from the reference line to a border between the first protruding portion (21, 21A) and the first side portion (121, 121A) is longer than a distance from the reference line to a border between the second protruding portion (22, 22A) and the second side portion (122, 122A); each of the plurality of teeth (12, 12A) has a crimping portion, and a distance from the reference line to the crimping portion is longer than the distance from the reference line to the border between the first protruding portion (21, 21A) and the first side portion (121, 121A).