Patent ID: 8439570

Claim:
A rolling bearing assembly, comprising: a rolling bearing comprising a plurality of rolling elements interposed between an inner ring and an outer ring thereof and retained by a cage as circumferentially arranged at predetermined intervals and, in which, the cage is guided in a rotation by allowing a guided surface provided at an axial end of an outer periphery thereof to make sliding contact with a guiding surface provided on an inner periphery of the outer ring; and a lubrication device for supplying a lubricant to the rolling bearing, wherein the lubrication device comprises: an annular groove extending along the inner periphery of the outer ring in adjoining relation with the guiding surface of the outer ring and storing a grease therein; and an annular grease reservoir member disposed in proximity to the annular groove and storing a grease therein, and wherein the grease stored in the grease reservoir member and the grease stored in the annular groove are interconnected by the grease present therebetween.