| 摘要 |
PROBLEM TO BE SOLVED: To provide a ball connecting body capable of being applied to a ball screw device in which a screw shaft and a nut member are screwed to each other through many balls and also a ball screw device for constituting an approximately annular ball endless track by using a deflector, and capable of being smoothly circulated in the ball endless track. SOLUTION: A ball connecting body 1 is constituted of many balls 3 to be circulated in an approximately annular ball endless track provided on a bearing device, and a flexible connecting body belt 2 in which the balls 3 are arranged in a line at the specified distance and respective balls 3 are rotatably held. In this case, the connecting body belt 2 is constituted of a plurality of spacer parts 4 to be inserted between mutually adjacent balls 3, 3 and on which spherical surface seats 6 with which the balls 3 are to be brought in contact are formed, and a collar-like connecting band part 5 for connecting respective spacer parts 4 so as to surround the spacer parts 4 from the outside, and an approximately annular shape is formed when the balls 3 are arranged in the connecting body belt 2. |
