| 摘要 |
PROBLEM TO BE SOLVED: To provide a bearing device for a driving wheel embodied at low cost, light, compactly, and in the third generation self-retaining structure and provide a manufacturing method for the bearing device. SOLUTION: The bearing device for the driving wheel is composed of an inner member 6 consisting of a hub ring 1 having at one end a flange 4 for mounting each wheel and furnished at the periphery with an inner raceway 1a and a minor diametric stepping part 1b and an inner ring 5 fitted on the minor diametric stepping part 1b and furnished with an inner runway 5a, an outer member 7 having at the periphery a flange 7a for mounting the wheel and furnished at the inside surface with outer raceways 7b arranged in rows, a double-row rolling bearing 2 furnished with rolling elements 8 arranged in rows accommodated between the raceway surfaces, and an equal speed universal joint 3 equipped with an outside joint member 12 having a cup part 13 and a shoulder part 14, wherein the end of the stepping part 1b of the hub ring 1 is deformed plastically in the diametric direction so as to form a fastening part 16, and the inner ring 5 is fixed in the axial direction by the fastening part 16, and the shoulder part 14 of the outer joint member 12 and the fastening part 16 are joined together by welding. COPYRIGHT: (C)2005,JPO&NCIPI
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