| 摘要 |
<p>Disclosed is a driving wheel bearing device. The driving wheel bearing device includes a wheel hub in connection with a wheel to rotate along with the wheel; an inner wheel coupled to the wheel hub to rotate along with the wheel hub; an outer wheel to which the wheel hub and the inner wheel are inserted to be supported; and a constant velocity joint connected to the inner wheel to rotate along with the inner wheel. Sealing performance is improved by reliably preventing the inflow of foreign substances to a face spline connection part between the wheel bearing and the constant velocity joint. The fuel efficiency of a vehicle is improved as well as assembly properties and maintenance properties are improved.</p> |
