Abstract: A self-aligning Locating type roller bearing is disclosed, and the bearing includes an outer shell, an outer race, an inner race, and a plurality of rollers disposed between the outer race and the inner race. The inner race is provided with two integral collars, and a part of one of the collars is cut out form a roller insertion slot. The rollers are assembled through the roller insertion slot, and, after the completion of the assembling of the rollers, the roller insertion slot is closed with a block. Thus the assembling of the rollers is facilitated, and the collars firmly support the rollers, resulting in that the bearing is capable of withstanding a heavy axial load.