Brush device

A motor having a brush device that has a rotatable cylindrical commutator and a brush that slides against an outer circumferential surface of the commutator, the brush device comprising:

• a base member;
• a terminal retained by the base member;
• an electric wire, which connects the brush to the terminal;
• and
• a cylindrical brush holder located on the base member, wherein the brush holder retains the brush, wherein the brush holder has a holder axis, which extends along the radial direction of the commutator, and wherein the brush is accommodated in and retained by the brush holder and is movable along the holder axis,
• wherein the brush holder has an opening portion, which is formed at the outer portion of the brush holder with respect to the radial direction of the commutator, and wherein the opening portion permits the brush to pass along a direction perpendicular to the holder axis.