| 摘要 |
A gearbox device (2) for a motor vehicle includes a box housing (21) formed with a window (211), and an ultimate drive shaft (24) extending through the box housing (21). A speed change gearing (23) is disposed within the box housing (21), and includes a bevel gear set disposed in proximity to the window (211) . The bevel gear set includes a driving bevel gear (231) driven by a crankshaft (3'), and a driven bevel gear (232) sleeved removably on the ultimate drive shaft (24) and meshing with the driving bevel gear (231). A removable cover (22) is connected removably to the box housing (21) for covering the window (211), and is removable from the box housing (21) so that the bevel gear set is exposed within the window (211), thereby allowing for access to the bevel gear set via the window (211) and, thus, adjustment, maintenance, repair, and replacement of the bevel gear set.
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