| 摘要 |
PURPOSE: A ball-nut sealing structure of a car electric EPS connects a seal without another connecting device by reforming the seal safe receipt portion of a ball-nut and the shape of a seal, thereby increasing a producing ability and decreasing a production cost. CONSTITUTION: A ball-nut sealing structure of a car electric EPS prevents an alien substance getting in by inserting a seal(3) into a seal safe receipt portion(22) of a ball-nut(2), and prevents an oil deviating. An introversion triangle projection(23) is formed at the interior surface of the seal safe receipt portion(22). The seal(3) to be inserted into the interior surface thereof is made of teflon. A triangle groove(32) is formed at the exterior surface of the seal safe receipt portion(22). The ball-nut sealing structure prevents the seal deviating when the triangle projection(23) and the triangle groove(32) are coincident with each other. Therefore, the ball-nut sealing structure increases an assembling capacity and decreases a production cost due to not using another set screw.
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