Tapered roller bearings are a type of support in which tapered rollers are used. The rolling bodies are located on the raceways between the inner and outer rings in one or two rows. The variable section of the rollers allows the use of this type of bearings with combined loads. This feature, together with their high reliability and impressive carrying capacity, determines a great demand for tapered roller bearings in heavy machine-building industry. The precision models that are highly accurate and reliable also have a wide use. To provide ease of installation and maintenance, these parts are manufactured detachable.