Title:
BEARING DEVICE FOR WHEEL
Document Type and Number:
WIPO Patent Application WO/2005/045268
Kind Code:
A1
Abstract:
[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.
Inventors:
KAMETAKA KOUJI (JP)
OHTSUKI HISASHI (JP)
OHTSUKI HISASHI (JP)
Application Number:
PCT/JP2004/015843
Publication Date:
May 19, 2005
Filing Date:
October 26, 2004
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
KAMETAKA KOUJI (JP)
OHTSUKI HISASHI (JP)
KAMETAKA KOUJI (JP)
OHTSUKI HISASHI (JP)
International Classes:
B24B19/06; B60B27/00; B60B35/18; F16C19/18; F16C33/60; B24B9/00; F16C33/64; F16C35/063; F16C37/00; (IPC1-7): F16C33/64; F16C35/063; F16C19/18; B60B35/18; B24B9/00
Foreign References:
| JP2003194073A | 2003-07-09 | |||
| JP2002349585A | 2002-12-04 | |||
| JPH10193016A | 1998-07-28 | |||
| JPH11129703A | 1999-05-18 | |||
| JPH06246546A | 1994-09-06 | |||
| JPS5128878B1 | 1976-08-21 | |||
| JPH1038056A | 1998-02-13 | |||
| JP2003232377A | 2003-08-22 | |||
| JP2000145797A | 2000-05-26 | |||
| JP2002303329A | 2002-10-18 | |||
| JP2001239803A | 2001-09-04 | |||
| JPH11129703A | 1999-05-18 | |||
| EP1302336A2 | 2003-04-16 |
Other References:
See also references of EP 1691090A4
Attorney, Agent or Firm:
Koshikawa, Takao (111-2 Itayamachi, Hamamatsu-sh, Shizuoka 91, JP)
Download PDF: