Title:
OIL SEAL MEMBER AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2011/122558
Kind Code:
A1
Abstract:
Disclosed is an oil seal member (20) formed by molding a bottom surface (31) of a powder compact (30) into a flat surface in a powder compacting process, and molding a flat bottom surface (41) of a sintered compact (40) into a curved surface in a sizing process, said sintered compact (40) being obtained by sintering the powder compact. Namely, a bottom surface (21) of the oil seal member (20) is molded into a curved surface by sizing.
Inventors:
MOURI TOSHIHIKO (JP)
Application Number:
PCT/JP2011/057633
Publication Date:
October 06, 2011
Filing Date:
March 28, 2011
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
MOURI TOSHIHIKO (JP)
MOURI TOSHIHIKO (JP)
International Classes:
F01L1/34; B22F3/02; B22F3/24; F16J15/16
Foreign References:
| JP2007092100A | 2007-04-12 | |||
| JP2010024495A | 2010-02-04 | |||
| JP2003106113A | 2003-04-09 | |||
| JP2007217740A | 2007-08-30 |
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
Kunihiko Shiromura (JP)
Kunihiko Shiromura (JP)
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Claims:
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