| 摘要 |
PROBLEM TO BE SOLVED: To provide a lock device withstanding an axial and large dynamic load for a cylindrical shaft and capable of facilitating the attachment/ detachment. SOLUTION: This lock device having, at least, a lock element is provided with an inner groove 3 and an outer groove 4 limiting, at least, a half space. The outer groove 4 is formed with an open sector in the half space and receives a radially preloaded retainer, which has bent ends 12 acutely bent inward in its both sides. The bent ends extend to inside the inner groove 3 through mutually opposed radial through holes 5 of the sleeve 2. |
