| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a roller unit which does not use a snap ring.SOLUTION: Flange parts 143 and 163 which regulate the movement of a needle 150 in an axial line direction are radially protruded at least at any one of one end part of an outer roller 140 and one end part of an inner roller 160, flange parts 144 and 164 which regulate the movement of the needle 150 in the axial line direction are radially protruded at the other end part of the outer roller 140 and the other end part of the inner roller 160, respectively, the needle 150 is disposed between one end part of the outer roller 140 and one end part of the inner roller 160, and a pressure-insertion part 180 formed of an elastic deformation part which can be pressurized is formed in a needle accommodation chamber 170 between an internal peripheral rolling face 142 of the outer roller 140 and an external peripheral rolling face 162 of the inner roller 160.</p> |
