| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a structure capable of easily feeding a sufficient amount of lubricating oil into a roller bearing for supporting a power roller rotatably with respect to a trunnion 7b. <P>SOLUTION: An outer race 16b and a support shaft 12a for rotatably supporting a power roller are swingably supported on a support beam portion 23 constituting the trunnion 7b. Furthermore, displacement of the outer race 16b in an axial direction of the support beam portion 23 is inhibited through engagement of a key 27a provided on the support beam portion 23 side with an anchor groove 28a provided on the outer race 16b side. The key 27a and the anchor groove 28a are provided in portions off the center of the outer race 16b and support shaft 12a, and thereby lubricating oil is smoothly delivered between an upstream side lubricating oil flow passage 29a and a downstream side lubricating oil flow passage 30a. <P>COPYRIGHT: (C)2013,JPO&INPIT |
