| 摘要 |
An automatic transmission case is provided to integrally form with a support bracket rotationally supporting an overdrive shaft by a roller bearing by inserting the support bracket into the automatic transmission case during diecasting, and by inserting a thrust needling bearing into the support bracket to allow rotation and support by coming in contact with a clutch housing mounted on an end of the overdrive shaft. As such, the present invention is able to prevent damages or breaking to extend durability, by distributing the force with a roller bearing and a thrust needle bearing when a longitudinal direction force is applied on the overdrive shaft. According to the present invention, the automatic transmission case is able to be easily manufactured and used, by inserting the support bracket into the automatic transmission case as one body, and to fixate by engaging the thrust needle bearing to the support bracket. Moreover, an abrasion of the thrust needle bearing and a wear-off of an outer ring and an inner ring are prevented to further improve durability, by fixating the outer and inner wheels of the thrust needle bearing on the support bracket to prevent rotation, regardless of the rotation of the overdrive shaft. |
