Invention Application
- Patent Title: WHEEL BEARING DEVICE AND MANUFACTURING METHOD THEREFOR
- Patent Title (中): 车轮轴承装置及其制造方法
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Application No.: US12704279Application Date: 2010-02-11
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Publication No.: US20100210369A1Publication Date: 2010-08-19
- Inventor: Yoshinori Masuda , Tatsuya Yokota , Nobuyuki Seo , Takanobu Murakami , Tsuyoshi Okumura , Yoshito Takada
- Applicant: Yoshinori Masuda , Tatsuya Yokota , Nobuyuki Seo , Takanobu Murakami , Tsuyoshi Okumura , Yoshito Takada
- Applicant Address: JP OSAKA
- Assignee: JTEKT CORPORATION
- Current Assignee: JTEKT CORPORATION
- Current Assignee Address: JP OSAKA
- Priority: JP2009-034580 20090217; JP2009-034581 20090217; JP2009-034582 20090217; JP2009-034584 20090217; JP2009-034585 20090217; JP2009-034586 20090217; JP2009-034623 20090217; JP2009-034624 20090217; JP2009-034625 20090217; JP2010-027149 20100210
- Main IPC: F16C3/02
- IPC: F16C3/02 ; B21D22/26 ; B21J5/06
Abstract:
A wheel bearing device of the invention includes a flanged shaft member that includes a shaft portion to which a rolling bearing is assembled, a fitting shaft portion that is formed on one end side of the shaft portion and that is fitted to a center hole of a wheel, and a plurality of flange portions that extend radially outward on an outer peripheral surface located between the shaft portion and the fitting shaft portion and each of which has a bolt hole in which a hub bolt for fastening the wheel is arranged. Each flange portion is formed by side extrusion when a forged recess is formed at a center of an end surface of the fitting shaft portion by cold forging.
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