Title:
HYDRODYNAMIC BEARING, HYDRODYNAMIC BEARING DEVICE, AND MOTOR
Document Type and Number:
WIPO Patent Application WO/2024/057868
Kind Code:
A1
Abstract:
A hydrodynamic bearing (bearing sleeve 8) is equipped with a sintered body in which dynamic pressure-generating parts A1, A2 are die-formed on the inner-circumferential surface thereof. The dynamic pressure-generating parts A1, A2 have a plurality of dynamic pressure grooves G1 which extend in a direction which is angled relative to the circumferential direction, and a plurality of inclined hill sections G3 which are provided between the plurality of dynamic pressure grooves G1 in the circumferential direction. The circumferential direction width h[mm] of each inclined hill section G3 and the dynamic pressure groove G1 depth Hf[μm] adjacent to said hill section G3 on one side thereof in the circumferential direction satisfy 0.1
Inventors:
KOMATSUBARA SHINJI (JP)
Application Number:
PCT/JP2023/030575
Publication Date:
March 21, 2024
Filing Date:
August 24, 2023
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16C33/10; F16C17/02; F16C33/12; F16C33/14; H02K7/08
Foreign References:
JP2016050648A | 2016-04-11 | |||
JP2018040458A | 2018-03-15 | |||
JPH05177545A | 1993-07-20 | |||
JP2015064019A | 2015-04-09 | |||
JP2002061650A | 2002-02-28 | |||
JP2007170577A | 2007-07-05 |
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
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