The type code of tapered roller bearing is 30000, and the tapered roller bearing is a separate bearing. In general, the outer ring and inner components of tapered roller bearings within the size range involved in gb/t307.1-94 rolling bearings - Tolerances for radial bearings are 100% interchangeable.

The angle of the outer ring and the diameter dimension of the outer raceway have been standardized as the same as the overall dimension. It is not allowed to change during design and manufacturing. So that the outer ring and inner components of tapered roller bearings can be interchangeable in the world.

Tapered roller bearings are mainly used to bear the combined radial and axial loads, mainly radial loads. Compared with angular contact ball bearings, the bearing capacity is large and the limit speed is low. Tapered roller bearing can bear axial load in one direction and limit axial displacement of shaft or housing in one direction.