Precision crossed tapered roller bearings are intended for high Precision arrangements with combined axial-radial roads. The design of the bearing comprises an outer ring, split inner ring, and tapered rollers in a crossed position. the rollers are separated by plastic spacers. The concept of the bearing with tapered rollers in an x arrangement positioned in turns towards raceways enables to accommodate axial loads in both directions, radial loads as well as tilting moments.