Patent ID: 8708572

Claim:
A retainer segment for a tapered roller bearing, having a shape given by equally dividing a conical, cage-shaped retainer by planes of division each passing through a centerline of the retainer, a plurality of the segments being connected in an annular pattern to provide a split type retainer and each having a small-diameter-side end fringe constituting a small-diameter-side circumferential edge of the split type retainer and a large-diameter-side end fringe constituting a large-diameter-side circumferential edge of the split type retainer, a predetermined number of posts being provided between the small-diameter-side end fringe and the large-diameter-side end fringe while roller holding pockets being provided between the posts, the retainer segment comprising an axially outward protruding large-diameter-side engagement piece at least on the large-diameter-side end fringe out of the small-diameter-side end fringe and the large-diameter-side end fringe; wherein the small-diameter-side end fringe is provided with an axially outward protruding small-diameter-side engagement piece; and wherein the retainer segment includes a segment main body and an outer frame member provided integrally around an outer circumference of the segment main body, the segment main body being formed with the pockets, the outer frame member being provided with the large-diameter-side engagement piece and the small-diameter-side engagement piece.