| 摘要 |
PURPOSE: Front axle structure of driving wheels for a vehicle is provided to reduce the weight and expenses by increasing the thickness of an axle hub to a hub bearing combined with a steering knuckle, and to decrease noise and vibration by preventing judder in braking. CONSTITUTION: A front axle of a vehicle has an axle hub(2) combined with the end of a driving shaft(1), and a steering knuckle(4) installed between the axle hub and a hub bearing(3). A fixing protrusion(3f) is integrally formed in an outer race(3b) of the hub bearing, and inserted to the steering knuckle. A flange(3g) is integrally formed in the outer race, and bent in the end of the steering knuckle. The hub bearing is combined with the steering knuckle by the fixing protrusion and the flange, and the thickness of the axle hub is increased to the hub bearing.
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