Stable one-way clutch with high bearing density

The utility model relates to the technical field of clutches, in particular to a stable high-bearing-density one-way clutch which comprises an outer ring, an inner ring and a retainer located between the outer ring and the inner ring, a plurality of cavities are formed in the retainer at intervals, and torque transmission rollers and spring pieces are arranged in the cavities. The torque transmission rollers are located in the cam grooves corresponding to the torque transmission rollers, and the spring pieces are used for pushing the torque transmission rollers to the groove walls of the small ends of the cam grooves. A plurality of first bosses are arranged on the inner side of the peripheral face of the retainer at intervals in a protruding mode, a plurality of second bosses are arranged on the outer side of the peripheral face of the retainer at intervals in a protruding mode, the inner side faces of the second bosses make contact with the outer side face of the outer ring, the first bosses can play a role