Thrust spherical roller bearing is separate bearing, whose roller and cage assembly and housing washer can be installed separately. It can be used in extremely heavy load occasions and has high rotation speed. The load action line and the axis of the bearing form a certain angle, so the axial load capacity is very large. While bearing a certain axial load, it can also bear a certain radial load, but the radial load must be less than 55% of the axial load. The spherical rollers of this type of bearing are arranged in an inclined manner, and the raceway of housing washer is spherical. It has self-aligning ability and is not very sensitive to coaxiality and shaft deflection, so the bearing can compensate for misalignment and shaft deformation.