| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bearing having simple construction for smoothing the axial movement of a member supported by the bearing. <P>SOLUTION: The bearing comprises a spherical body protrusion cylindrical member 71 having a plurality of spherical body protrusion holes 71a formed in the circumferential direction with their diameters being the same and smaller than the diameters of spherical bodies 72, the spherical bodies 72 protruded from the outside face to the inside face of the spherical body protrusion cylindrical member 71 and rotatably arranged in the spherical body protrusion holes 71a, and a spherical body movement preventing cylindrical member 73 having contact with the outside face of the spherical bodies 72 arranged in the spherical body protrusion holes 71a for preventing the movement of the spherical bodies 72 to the outside of the spherical body protrusion holes 71a. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
