| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a roller screw that can be rolled without causing the slide of a rolling body particularly. <P>SOLUTION: The roller screw includes: a rod-shaped long shaft 5; a nut 6 for screwing the long shaft 5; a circulation flow path which is formed at the nut 6 and communicates with a load path; a circulation flow member having a circulation path composed of the circulation flow path and the load ; and a plurality of rolling bodies 7 arranged at the circulation path. Each rolling body is composed of a plurality of bodies 71, 72, the plurality of bodies 71, 72 have faces 712, 722 in radial directions, the faces 712, 722 in the radial directions are formed into columnar shapes, surfaces different from the faces in the radial directions of the plurality of bodies are defined as end faces 713, 723, the end faces of the plurality of bodies have diameters D of the same dimensions, a connecting part is formed between the plurality of bodies, the bodies are overlapped with each other and connected to each other by the connecting part, and the plurality of bodies are turned at rotation speeds V1, V2 which are different from each other. <P>COPYRIGHT: (C)2012,JPO&INPIT |
