Tapered roller bearing belongs to separate type bearing. Both inner and outer rings of the bearing have tapered raceways. This kind of bearing can be divided into single row, double row and four row tapered roller bearing. Single row tapered roller bearing can bear radial load and single direction axial load. When the bearing bears the radial load, it will produce an axial component force, so when another bearing which can bear the opposite axial force is needed to balance.

Tapered roller bearing refers to the radial thrust rolling bearing whose rolling element is tapered roller. There are two kinds of small cone angle and large cone angle. The small cone angle mainly bears the combined radial and axial load, which is often used in double mode. The inner and outer race can be installed separately, and the radial and axial clearance can be adjusted in the installation and use; the large cone angle mainly bears the axial and radial combined load mainly based on the axial load, and is not used alone to bear the pure axial load, and is used as a pair configuration (the same end is opposite to each other) It can be used to bear pure radial load.