| 摘要 |
<p>Pinion gears (4A, 4B) are rotatably supported in pinion gear insertion holes (12A, 12B) formed in a differential gear case (2). Extension sections (12Aa, 12Ba) made by expanding the inner surfaces (pinion gear support surfaces) of the insertion holes (12A, 12B) are formed so that not only to-be-supported sections (4Ab, 4Bb) outside the pinion gears (4A, 4B) but also portions of gear mesh sections (4Aa, 4Ba) meshing with side gears (6A, 6B) on the inner side support the pinion gears in an overlapping manner. The structure prevents the pinion gears (4A, 4B) from inclining and improves durability.</p> |
