Tapered Roller Bearings consist of the outer ring and the cone assembly that consists of the inner ring, rollers, and cage. These bearing structures accommodate combined loads and provide low friction during operation. These bearings are adjusted as one single row tapered roller bearing in front of a second tapered roller bearing that applies a preload, a rigid bearing application that can be achieved. Tapered Roller Bearings are used in car and vehicle bearings where they must cope simultaneously with large vertical and horizontal forces. These are commonly used for heavy-duty, moderate-speed applications where durability is required.