The conical roller bearing belongs to the separate type of bearing, and the inner and outer rings of the bearing have conical raceways. This type of bearing is divided into separate, double and four-row conical roller bearings according to the number of columns of the rollers installed. A single cone roller bearing can withstand radial and single axial loads. When the bearing is subjected to radial load, an axial splitting force will be generated, so another bearing that can withstand the opposite axial force is required to balance.