Introduce
Tapered roller bearings are separable bearings, and both the inner and outer rings of the bearing have tapered raceways. This type of bearing is 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 can withstand radial loads and axial loads in one direction. When the bearing is subjected to radial load, an axial component force will be generated, so when another bearing that can withstand the opposite direction axial force is needed to balance it.
Tapered roller bearings refer to radial thrust rolling bearings whose rolling elements are tapered rollers. There are two kinds of small cone angle and large cone angle. The small taper angle mainly bears the combined radial and axial loads mainly based on the radial load, and is often used in double, reversely installed, the inner and outer races can be installed separately, and the radial and axial clearance can be adjusted during installation and use; The large cone angle mainly bears the combined axial and radial loads mainly based on the axial load. Generally, it is not used to bear the pure axial load alone, but can be used to bear the pure radial load when it is configured in pairs (the ends with the same name are installed opposite to each other).
Structural features
The type code of the tapered roller bearing is 30000, and the tapered roller bearing is a separable bearing.
The angle of the outer ring and the diameter of the outer raceway have been standardized in the same way as the outer dimensions. Changes during design and manufacture are not allowed. So that the outer ring and inner assembly of the tapered roller bearing can be interchanged worldwide.
Tapered roller bearings are mainly used to bear combined radial and axial loads mainly based on radial loads. Compared with angular contact ball bearings, the bearing capacity is large and the limit speed is low. Tapered roller bearings can withstand axial loads in one direction and can limit the axial displacement of the shaft or housing in one direction.