ECCENTRIC ROTATION DRIVE DEVICE

摘要

[Object] To provide an eccentric circling drive device that is capable of performing appropriate lubrication and cooling by means of a processing liquid while preventing energy loss and damage to members due to friction. [Solving Means] A circling shaft 13 of an eccentric circling drive device 100 includes therewithin a flow path 131 that causes the flow of a lubricating oil F. The flow path 131 includes a thrust flow path 131a formed along an axial direction and a radial flow path 131b that extends along a radial direction of the circling shaft 13 from the thrust flow path 131a. An end portion of the radial flow path 131b is connected to a bearing 15. With such a configuration of the flow path 131, the lubricating oil F can be introduced from the end portion 13b of the circling shaft 13 into the bearing 15 by means of the circling motion of the circling shaft 13.