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Patent Searching and Data


Title:
FLUID DYNAMIC BEARING DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/172956
Kind Code:
A1
Abstract:
In a bearing sleeve (8), the invention decreases (to 11% or less) the porosity in the radial bearing surface regions in the axial direction (a first region (H1) and a second region (H2)), and increases the porosity in the non-radial bearing surface region (a third region (H3)) therebetween in the axial direction to be greater than said porosity.

Inventors:
KOKUMAI HIROMICHI (JP)
KURIMURA TETSUYA (JP)
Application Number:
JP2012/063541
Publication Date:
December 20, 2012
Filing Date:
May 25, 2012
Export Citation:
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Assignee:
NTN TOYO BEARING CO LTD (JP)
KOKUMAI HIROMICHI (JP)
KURIMURA TETSUYA (JP)
International Classes:
F16C17/02; F16C17/10; F16C33/10; G11B19/20
Foreign References:
JP2011074951A2011-04-14
JP2009228873A2009-10-08
JP2007271009A2007-10-18
JP2009092197A2009-04-30
JP2006105237A2006-04-20
JP2006077922A2006-03-23
JP2009150410A2009-07-09
JPH0759326A1995-03-03
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
Kunihiko Shiromura (JP)
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Claims: