| 摘要 |
PURPOSE: A synchronizer hub for a vehicle and a manufacturing method thereof are provided to improve the strength of a synchronizer hub and to reduce the manufacturing cost by sintering and control-cooling the iron-based powder material in which the chrome and molybdenum are alloyed. CONSTITUTION: A synchronizer hub for a vehicle comprises a sleeve and a shaft. The sleeve is geared with a clutch gear. The shaft is combined to the inside of a synchronizer hub. The synchronizer hub is made of chrome of 2.7~3.3 weight%, molybdenum of 0.4~0.6 weight%, carbon of 0.4~0.6 weight%, and iron of rest.
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