High-bearing-capacity angular contact ball bearing and steel ball diameter calculation method

The invention discloses a high-bearing-capacity angular contact ball bearing and a steel ball diameter calculation method, relates to a bearing, and aims to solve the problems that an overload phenomenon occurs when an existing angular contact ball bearing works in a high-load state, so that friction force is increased, the bearing cannot be used normally, and operation of equipment is affected. A high-bearing-capacity angular contact ball bearing is characterized in that a bearing inner ring is arranged in a bearing outer ring, a retainer is arranged between the bearing inner ring and the bearing outer ring, a plurality of steel balls are arranged on the retainer between the bearing inner ring and the bearing outer ring, and the diameter of each steel ball is smaller than or equal to 0.34 times (D-d). A method for calculating the diameter of a steel ball of a high-bearing angular contact ball bearing comprises the steps of 1, calculating the numerical value P of the center diameter, P = 0.5 (d + D), 2, deter