dynamo-electric machine for a motor

A receiving portion (2) of rear end bearing having a cylindrical shape with bottom is integrally formed on a rear carrier (1). An apparatus (15) with brushes is mounted on the back support (1) by mounting a portion (18) projecting plate on an end portion of a shaft, to cover the sliding rings (6) . A rectifier (21) is mounted on the back support (1) adjacent to the receiving portion of rear end bearing and the portion (18) projecting plate. A rolling bearing (4) is configured as an anti-sliding bearing in which a resin tape (14) is mounted in an annular recessed groove which is recessed in an outer circumferential surface of an outer ring (9). A first channel (20) is disposed through the portion (18) projection plate so as to be positioned to be rotated downwards when mounted on a vehicle and so as to communicate between an inner portion and an outer portion of the projecting plate portion.