Commutator and motor

The invention provides a commutator and a motor. The commutator comprises a commutator base body and a plurality of commutator segments, wherein the plurality of commutator segments are arranged around the commutator base body along the circumferential direction, and the adjacent commutator segments are provided with a first gap section and a second gap section therebetween which are adjacent to each other along the circumferential direction; each commutator segment is provided with a winding wiring portion at the second end along the axial direction, and the first end of the commutator segment along the axial direction is away from the winding wiring portion; the width L2 of the second gap section between the second ends of the adjacent commutator segments is greater than the width L1 ofthe first gap section between the first ends; and the width L2 of the second gap section is less than the width L3 of the spacing between the winding wiring portions of the adjacent commutator segments. According to the techn