The role and application fields of tapered roller bearings
Tapered roller bearings mainly bear combined radial and axial loads. 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 tapered roller bearings according to the number of rows of rolling elements in the bearing. The clearance of single-row tapered roller bearings needs to be adjusted by the user during installation; the clearance of double-row and four-row tapered roller bearings has been given according to user requirements when the product leaves the factory, and no user adjustment is required.
Tapered roller bearings have tapered inner and outer ring 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 tapered roller bearings particularly suitable for combined (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.
Tapered roller bearings are usually separable, that is, the tapered inner ring assembly composed of the inner ring with roller and cage assembly can be installed separately from the tapered outer ring (outer ring).
Tapered roller bearings are widely used in automobiles, rolling mills, mining, metallurgy, plastic machinery and other industries.
The main reasons for the scars of tapered roller bearings during the installation process are: the inner ring and outer ring of the bearing are skewed during installation and assembly; or the impact load appears during the installation and assembly process, which eventually causes the bearing to appear scars .
When installing tapered roller bearings, it must be carried out in accordance with the work specifications, or it will cause many problems, such as the form or method of installation
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Post time: Jun-15-2023