Thrust spherical roller bearing, roller is spherical type, because the raceway of the housing ring is spherical structure, so it has self-aligning performance, the axial load capacity of this kind of bearing is very large, while bearing the axial load, it can also bear the radial load of no more than 55% of the axial load, and is not very sensitive to the coaxiality and the deflection of the shaft. This kind of bearing is mainly used in hydraulic generators, vertical motors, marine propeller shafts, tower cranes, plastic injection molding extruders, etc.