Title:
THIN-WALLED PART PRODUCING METHOD, BEARING RACEWAY RING, THRUST NEEDLE ROLLER BEARING, ROLLING BEARING RACEWAY RING PRODUCING METHOD, ROLLING BEARING RACEWAY RING, AND ROLLING BEARING
Document Type and Number:
WIPO Patent Application WO/2005/033346
Kind Code:
A1
Abstract:
A method of producing thin-walled parts is characterized in that after being heated, a thin-walled part (1) is subjected to either hardening or isothermal transformation while being pressed in a mold (12a, 12b) with the latter being used as a cooling medium. This makes it possible to provide a method of producing thin-walled parts which can be prevented from warping or deforming during heat treatment and which have a uniform and high hardness; a bearing raceway ring; a thrust needle roller bearing; a method of producing rolling bearing raceway rings; a rolling bearing raceway ring; and a rolling bearing.
Inventors:
MAEDA KIKUO (JP)
KATAOKA YUUKI (JP)
SASABE MITSUO (JP)
KATAOKA YUUKI (JP)
SASABE MITSUO (JP)
Application Number:
PCT/JP2004/014501
Publication Date:
April 14, 2005
Filing Date:
October 01, 2004
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
MAEDA KIKUO (JP)
KATAOKA YUUKI (JP)
SASABE MITSUO (JP)
MAEDA KIKUO (JP)
KATAOKA YUUKI (JP)
SASABE MITSUO (JP)
International Classes:
F16C19/30; F16C19/46; F16C19/48; F16C33/64; C21D1/673; C21D9/40; (IPC1-7): C21D9/40; C21D1/18; F16C33/64; F16C19/30; F16C19/48
Domestic Patent References:
| WO1996006194A1 | 1996-02-29 |
Foreign References:
| JPH09296214A | 1997-11-18 | |||
| JP2003231915A | 2003-08-19 | |||
| JPH1129821A | 1999-02-02 | |||
| JP2002139067A | 2002-05-17 |
Attorney, Agent or Firm:
Fukami, Hisao (Mitsui Sumitomo Bank Minamimorimachi Bldg.
1-29, Minamimorimachi 2-chome, Kita-ku, Osaka-sh, Osaka 54, JP)
Download PDF: