| 摘要 |
PURPOSE:To stabilize the rotation of a rotating part and prolong the life thereof, by constituting a sliding part between a ring rotating body and a find fixing part of at least two surfaces, and specifying the height of the sliding part under a radial force. CONSTITUTION:A rotating ring 6 is constituted of a ring rotating body 1 having a ring flange 2 at the top and a sliding flange 7 at the outer periphery and a ring fixing part 4 engaged with an engaging hole of a ring rail 3, and the height (h) of the sliding surface in the sliding part under a radial force is set at (1/3)- (3/4) of the total height (H) of the rotating ring 6. |
