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)
KURIMURA TETSUYA (JP)
Application Number:
PCT/JP2012/063541
Publication Date:
December 20, 2012
Filing Date:
May 25, 2012
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
KOKUMAI HIROMICHI (JP)
KURIMURA TETSUYA (JP)
KOKUMAI HIROMICHI (JP)
KURIMURA TETSUYA (JP)
International Classes:
F16C17/02; F16C17/10; F16C33/10; G11B19/20
Foreign References:
| JP2011074951A | 2011-04-14 | |||
| JP2009228873A | 2009-10-08 | |||
| JP2007271009A | 2007-10-18 | |||
| JP2009092197A | 2009-04-30 | |||
| JP2006105237A | 2006-04-20 | |||
| JP2006077922A | 2006-03-23 | |||
| JP2009150410A | 2009-07-09 | |||
| JPH0759326A | 1995-03-03 |
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
Kunihiko Shiromura (JP)
Kunihiko Shiromura (JP)
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