ASSEMBLING METHOD AND ASSEMBLING DEVICE OF BALL BEARING, AND BALL BEARING MANUFACTURED BY ASSEMBLING METHOD

摘要

PROBLEM TO BE SOLVED: To provide an assembling method of a ball bearing which prevents scratches of balls to be inserted, and the adhesion of dust and foreign matters when inserting a plurality of the balls into a gap space which is defined between an outer ring raceway surface and an inner ring raceway surface, does not cause the clogging of the balls at the ball insertion, and does not need an exclusive jig for each bearing, its assembling device, and the ball bearing which is manufactured by the assembling method.SOLUTION: An assembling device of a ball bearing comprises: an inner/outer ring holding part 11 which holds an outer ring 27 and an inner ring 29 in a state that an outer ring raceway surface and an inner ring raceway surface are decentered with respect to each other on the same plane, and forms a clearance space CS; a stocker; a robot arm 17; a ball holding mechanism 15 arranged at a tip of the robot arm; and a control part. The control part makes the ball holding mechanism hold any ball from the stocker, transfers the held ball to a ball throw-in position of the clearance gap corresponding to a kind of the ball bearing by the robot arm, and throws the held ball into the clearance space. The control part repeats these actions by the number of the balls of the ball bearing.SELECTED DRAWING: Figure 6