| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a power transmission device to be reduced in cost while ensuring the accuracy of supporting a first shaft member mounted with a gear. <P>SOLUTION: The power transmission device 1 includes a first shaft member 3, a pair of bearings 5 and 7 disposed on both sides in the axial direction of the first shaft member 3 to rotatably support the first shaft member 3, a second shaft member 9 rotatably disposed extending in a direction intersecting with the first shaft member 3, and a direction conversion gear set 13 in which engagement portions 11 provided to the first shaft member 3 and the second shaft member 9 and engaging with each other are disposed between a pair of bearings 5 and 7, wherein out of the pair of bearings 5 and 7, the tapered roller bearing 5 is disposed on the back side in the axial direction of the engagement portion 11, and the radial ball bearing 7 is disposed on the front side in the axial direction of the engagement portion 11. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
