Abstract: A roller bearing assembly is disclosed which has a single-piece outer race ring having a central, circumferential depression and a pair of raceway surfaces on opposite sides thereof. An inner race ring, sized and shaped to fit within the outer race ring, comprises a pair of inner race members. Each of the inner race members has two ends and a raceway surface formed at least in part by a shoulder. The inner race members are positioned so as to abut each other at their respective abutting ends and are axially aligned such that the raceway surfaces of the inner race members are aligned with one of the raceway surfaces of the outer race ring to form two raceways. A substantially tubularly-shaped inner sleeve having two ends is disposed in the internal bore of the inner race ring for maintaining the axial alignment of the inner race members.