Casing structure for gearbox of car, has differential gear including gearbox casing provided with extension comprising bore that assures function of seal support and stopping function of output shaft of differential gear

摘要

The structure has a clutch casing and a differential casing that are assembled to form an envelope around a differential gear. The differential gear comprises a gearbox casing (10) and an output shaft that is mounted in a conical roller bearing. The gearbox casing is provided with an extension (15) that is in the form of a flat plate. The extension comprises a bore (16) that assures function of seal support and stopping function of the output shaft of the differential gear. A cylindrical shoulder is provided at an end of an axial protrusion forming the bearing.