The Role Of Tapered Roller Bearings

Tapered roller bearings mainly bear the combined radial and axial loads mainly in the radial direction. The bearing capacity depends on the raceway angle of the outer ring, and the larger the angle, the greater the bearing 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 the user's requirements when the product leaves the factory, and does not need to be adjusted by the user.

Tapered roller bearings have tapered inner and outer raceways with tapered rollers arranged in between. The projected 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 the 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 represented 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 consisting of the inner ring with the 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 occurrence of scars in the installation process of tapered roller bearings are: the inner ring and outer ring are skewed during the installation and assembly of the bearing; or it may be the occurrence of the charging load in the process of installation and assembly, which eventually causes the bearing to appear. scars.

When installing the tapered roller bearing, it must be carried out according to the working specifications. Otherwise, there will be many problems, such as improper installation form or method, which will cause linear scars on the raceway surface and bone surface of the bearing. The device of the deep groove ball bearing indirectly reflects the precision, life and function of the bearing in use.