| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a manufacturing method of a bearing device for a wheel of fourth generation structure, for reducing weight and size of the device, increasing bearing stiffness, and reducing the number of processing steps. <P>SOLUTION: Trial assembly of double-rows of balls 6a, 6b to double-rows of outer rolling surfaces 4a, 4b of an outward member 4 is performed through retainers 9a, 9b. Then, seals 10, 10 are installed to both end parts of the outer member 4. A hub wheel 1 and an outer joint member 14 are respectively inserted from both sides of the outward member 4, a serration 20a of the shaft part 20 of the outer joint member 14 is fitted to a serration 1c of the hub wheel 1. With a state where a predetermined pre-load is applied to the double-rows of rolling bearings 2, an abutting part between the hub wheel 1 and the shaft part 20 is preheated, the hub wheel 1 and the shaft part 20 are integrally joined at a joint part 11 by joining, and then post heating is performed. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
