Taper roller bearings are widely used in automobiles, rolling mills, mining, metallurgy, plastic machinery, and other industries. Taper roller bearings mainly bear the combined radial and axial loads mainly in the radial direction. The load capacity of the bearing depends on the raceway angle of the outer ring, the greater the angle, the greater the load capacity.
The most used taper roller bearings are single-row taper roller bearings. In the front wheel hub of the car, small-sized double-row taper roller bearings are used. Four-column taper roller bearings are used in heavy machineries such as large cold and hot rolling mills. Advantages of taper roller bearings: Taper roller bearings mainly bear radial and axial joint loads mainly in the radial direction. The load capacity of the bearing depends on the raceway angle of the outer ring, the greater the angle, the greater the load capacity. This type of bearing is a separable bearing, which is divided into single-row, double-row, and four-row taper roller bearings according to the number of rows of rolling elements in the bearing. The clearance of single-row taper roller bearings needs to be adjusted by the user during installation; the clearance of double-row and four-row taper roller bearings has been given according to user requirements when the product leaves the factory, and no user adjustment is required.
Taper roller bearings are usually separable, that is, the conical inner ring assembly composed of the inner ring with roller and cage assembly can be installed separately from the conical outer ring (outer ring). Taper roller bearings have tapered inner and outer raceways with tapered rollers arranged in between. The projection lines of all conical surfaces meet at the same point on the bearing axis. This design makes taper roller bearings especially suitable for bearing compound (radial and axial) loads. The axial load capacity of a bearing is mostly determined by the contact angle α; the larger the α angle, the higher the axial load capacity. The size of the angle is expressed by the calculation coefficient e; the larger the value of e, the larger the contact angle, and the greater the applicability of the bearing to bear the axial load.
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