The tapered roller bearing was designed to reduce friction and in turn reduce the heat generated which caused previous bearing designs to fail. The tapered shape allows the transfer of a load evenly while rolling. Tapered roller bearings feature a cup and cone assembly. The cup is comprised of the outer ring and the cone assembly consists of inner ring, rollers, and cage. This bearing construction accommodates combined loads and provides low friction during operation. By adjusting one single row tapered roller bearing against a second tapered roller bearing and applying a preload, a rigid bearing application can be achieved.