| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a support structure for a planetary gear mechanism capable of securing space for one of planetary gears while suppressing an axial deviation of a planetary carrier.SOLUTION: In a support structure for a first and a second planetary gear type reduction gears 12A and 12B arranged in a case 11, planetary carriers 23A and 23B include a pinion shaft 230 for rotatably supporting planetary gears 22A and 22B, and an inside arm part 231 and an outside arm part 232 for supporting the pinion shaft. The planetary carriers are supported in the case by bearings 33A and 33B, and bearings 34A and 34B for supporting the pinion shaft. These bearings are arranged on one side of the planetary gears in the axial direction. On the other side of the planetary gears, bearings for supporting the planetary carriers with respect to the case are not provided.</p> |
