An alternator (10) has a model plastic, electrically conductive D.E. frame in which a sealed bearing is molded in place with the formation of the D.E. frame (14). When the D.E. frame is removed from its plastics injection mold and while the frame is still hot, the stator is installed in the D.E. frame and the frame allowed to cool and constrict about the stator (24). The companion S.R.E. frame (16) is preferably fabricated of non-conductive plastics material.
