SEALING STRUCTURE OF A WHEEL BEARING TO IMPROVE FUEL RATIO THROUGH REDUCING BEARING DRAG TORQUE AND IMPROVE THE SEALING PERFORMANCE OF A WHEEL BEARING

摘要

PURPOSE: A sealing structure of a wheel bearing is provided to reduce bearing drag torque through reinforcing the sealing of a bearing by forming a bended portion in a hub and a projecting rib and a projection in the sealing member to head upward.;CONSTITUTION: A sealing structure of a wheel bearing is provided to block foreign materials by using a sealing member(150) and the bend portion(115) of a hub(110). The sealing member is composed of a ring shaped inner steel member(154) and a rubber member(152). The rubber comprises a side ribs(170a, 170b) and a lower rib(170c) and covers the exposed surface of an inner steel member and contacted with the bend portion of a hub. A projecting rib(172) is formed in the bended portion of an upper rib covering an outer circumferential surface(121). The hub comprises a bended portion for blocking foreign materials.;COPYRIGHT KIPO 2012