Insulation and alignment of segmented stators for electric machines

A segmented stator for an electric machine, the stator comprising a plurality of annularly arranged stator segments including a first stator segment and a second stator segment, each stator segment including a yoke portion having opposite end faces, a tooth portion and insulative material, the yoke portions defining a wall from which the tooth portions extend in a radial direction, the first and second stator segments positioned adjacent and contacting one another and defining a joint between the wall of the first stator segment and the wall of the second stator segment, the joint extending between the opposite end faces of the adjacent stator segments, the insulative material of the first stator segment covering at least a portion of the wall of the first stator segment and extending in a circumferential direction beyond the joint between the adjacent stator segments, the insulative material of the second stator segment covering at least a portion of the wall of the second stator segment and overlapping in the radial direction the insulative material of the first stator segment, the insulative materials of the adjacent stator segments providing no direct arc path between the yoke portions of the adjacent stator segments and wire wound around the tooth portions of the adjacent stator segments.