| 摘要 |
<p>In order to address the problem of favorably lubricating a pinion gear bearing of a planetary gear device used in a vehicle automatic transmission or a vehicle reduction differential device without using a hydraulic pump, so as to increase the lifespan of the bearing and eliminate the generation of creep between the bearing and the pinion gear, a planetary gear device is constructed such that a deep groove ball bearing (33) is arranged around a pinion shaft (31) attached to a carrier (32), a pinion gear (29) is rotatably supported by the deep groove ball bearing (33), and a positional displacement prevention means is provided between the deep groove ball bearing (33) and the pinion gear (29).</p> |
