Automotive alternator bearing

摘要

An outboard bearing is constituted by a multi-row bearing having one inner ring and one outer ring, a plurality of ball tracks disposed axially between the inner ring and the outer ring, and a plurality of balls disposed in each of the ball tracks. A rectifier is disposed in an outboard bracket on an outer circumferential side of an outboard bearing box, and a ventilation aperture is bored through the outboard bracket on an outer circumferential side of the outboard bearing box.