Angular contact ball bearing ball distribution method and ball distribution device

The invention provides an angular contact ball bearing ball distribution method and a ball distribution device. The method comprises the steps that an inner ring and a retainer are arranged at a balldistribution station together and rotate; and the space between steel balls and the retainer is gradually reduced under extrusion of a ball distribution curved surface, and the steel balls fall from asteel ball outlet in a rotating state and are distributed into a ball pocket of the retainer one by one. According to the method, axis constraint is introduced between the retainer and the inner ringthrough the steel balls, after the steel balls are assembled, the retainer, the inner ring and the steel balls are integrally conveyed backwards, bearing machining can be completed only by completingouter ring sleeving, the number of machining steps is small, the defect that an inner ring is difficult to completely sleeve after traditional ball distribution is avoided, and the machining precision is improved; and according