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1. 发明申请

WO2005045268A1 車輪用軸受装置审中-公开
标题翻译：轴承轴承装置
公开(公告)号：WO2005045268A1
公开(公告)日：2005-05-19
申请号：PCT/JP2004/015843
申请日：2004-10-26
申请人： NTN株式会社 , 亀高晃司 , 大槻寿志
发明人：亀高晃司 , 大槻寿志
IPC分类号： F16C33/64
CPC分类号： B60B27/0005 , B24B19/06 , B60B27/00 , B60B27/0084 , B60B27/0094 , F16C19/186 , F16C33/585 , F16C33/586 , F16C33/64 , F16C43/04 , F16C2326/02
摘要： [PROBLEMS] A bearing device for a wheel, light in weight and compact, and having superior durability and reliability. [MEANS FOR SOLVING PROBLEMS] A method of producing a bearing device for a wheel, the bearing device having an inner member (1), an outer member (10) fitted on the inner member (1), and rolling bodies (6) rotatably received between the outer member (10) and the inner member (1). The inner member (1) is composed of a hub ring (2) and an inner ring (3). The hub ring (2) integrally has at its one end a wheel installation flange (4) and has an inner raceway surface (2a) and a small diameter step section (2b) that are formed on the outer periphery of the hub ring. The small diameter step section (2b) extends from the inner raceway surface (2a) in the axial direction, and the inner ring (3) is fitted on the small diameter step section (2b). An end section of the small diameter step section (2b) is plastically deformed radially outward to form a staked section (2c), and the inner ring (3) is fixed by the staked section (2c). An outer-diameter chamfer section (11) on the rear side of the inner ring (3) is re-cut after heat treatment, and therefore dents or flaws produced in preceding processes are removed and hoop-stress originated stress concentration occurring in the inner ring (3) in a staking process can be eased.
摘要翻译：一种车轮用轴承装置，重量轻，结构紧凑，具有优异的耐久性和可靠性。解决问题的手段一种车轮用轴承装置的制造方法，具有内部构件（1），安装在内侧构件（1）上的外部构件（10）和滚动体（6））的轴承装置容纳在外部构件（10）和内部构件（1）之间。内部构件（1）由轮毂环（2）和内圈（3）构成。轮毂环（2）的一端一体地具有车轮安装法兰（4），并且具有形成在轮毂环的外周上的内滚道面（2a）和小直径台阶部（2b）。小直径台阶部（2b）从内侧滚道面（2a）沿轴向延伸，内圈（3）嵌合在小径台阶部（2b）上。小直径台阶部（2b）的端部向径向外侧塑性变形以形成隆起部（2c），内圈（3）由铆接部（2c）固定。在内部环3的后侧的外径倒角部（11）在热处理后被重新切割，因此在前述工序中产生的凹痕或缺陷被除去，并且环向应力产生在内部环（3）可以放松。

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