Thrust ball bearings are precision mechanical components specifically designed to withstand axial loads, with core structure comprising washers with raceways and precisely arranged steel balls. These bearings achieve efficient axial force transmission through accurately designed contact angles, with unique geometric construction maintaining stable performance when承受unidirectional or bidirectional thrust. Unlike radial bearings, thrust ball bearings feature load transmission paths parallel to the axis, this directional load-carrying characteristic demonstrates exceptional performance advantages when handling pure axial loads. The bearings utilize high-precision raceway curvatures and optimized ball distribution to maintain stable lubricant film layers during high-speed operation.