Taper Roller Bearing are used in places where radial and thrust load is large. Such loads can be shock load or constant load. You can see taper roller bearings installed in cars where they are used in pairs and in opposite directions. Placing them in opposite direction has an added advantage that the thrust load can be taken by them in both the directions. The Taper Roller Bearing shown in the image is a cutaway taper roller which has dual load ability owing to its angular mounting.