Shock-resistant high-precision large-torque gearbox bearing

The utility model discloses an impact-resistant high-precision large-torque gearbox bearing, relates to the technical field of bearings, and solves the problem that the wear speed of the bearing is increased as the bearing is rigidly resistant to shock impact by virtue of the material hardness of the bearing. The shock-resistant high-precision large-torque gearbox bearing comprises a ball frame, the middle of the ball frame is sleeved with a middle ball in a sliding mode. The outer side of the middle ball is in sliding connection with the outer bearing ring; the inner side of the middle ball is in sliding connection with the inner bearing ring; inner bristle plates are arranged on the ball frame in a surrounding array manner; middle buffering grooves are formed in the ball frame at intervals, buffering elastic rings are fixedly arranged in the middles of the middle buffering grooves, ventilation holes are formed in the upper portions and the lower portions of the middle buffering grooves, and fan blade shafts