Tapered roller bearing features a cup and cone assembly, which refers to the radial thrust rolling bearing, the cup is comprised of the outer ring and the cone assembly consists of inner ring, rollers, and cage, and the inner and outer rings of this kind bearing are tapered raceways, whose bearing capacity depends on the raceway Angle of the outer ring. The larger the Angle is, the greater the bearing capacity will be! Bearings mainly bearing radial and axial combined load. 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.

Tapered roller bearing is separated bearings, which can be divided into different structural types such as single row, double row and four row tapered roller bearings according to the number of rows of rollers installed. Single row tapered roller bearings are separated, can withstand radial loads and axial loads in a single direction. When the bearing is subjected to a radial load, an axial component will be generated, so that another bearing that can withstand the axial force in the opposite direction is needed to balance, whose dimension is in accordance with ISO, then the components can internationally exchange. The double row tapered roller bearing outer ring (or inner ring) is a whole. The four-row tapered roller bearing whose radial load is higher, and limit rotational speed is slower than the double row, even though these two have the same performance.

Tapered roller bearings’ basic dimensions range are listed below:

（1）Single row tapered roller bearings：

Inner diameter size range：20mm～1270mm

Outside diameter size range：40mm～1465mm

Width size range：15mm～240mm

（2）Double row tapered roller bearings：

Inner diameter size range：38mm～1560mm

Outside diameter size range：70mm～1800mm

Width size range：50mm～460mm

（3）Four row tapered roller bearings：

Inner diameter size range：130mm～1600mm

Outside diameter size range：200mm～2000mm

Width size range：150mm～1150mm

Tapered roller bearings are typically used in bearing solutions where there is a need to increase performance, reduce friction or increase power density in applications, which are widely used in automobile rolling mill, mine, metallurgy, plastic machinery and other industries. With a wide range of designs to choose from, RONA tapered roller bearings are also customizable to match your specific speed, load, contamination, temperature or vibration conditions.

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