Title:
OIL-IMPREGNATED SINTERED BEARING AND FLUID DYNAMIC PRESSURE BEARING DEVICE PROVIDED WITH THE BEARING
Document Type and Number:
WIPO Patent Application WO/2022/190836
Kind Code:
A1
Abstract:
A sintered metal bearing 8 has an internal vacancy impregnated with a lubricating fluid and has a radial dynamic pressure generation portion 8a1 formed on an inner peripheral surface 8a. The sintered metal bearing 8 has an axial-direction dimension L of 4.8 mm or less and a thickness dimension t of 0.5-1.5 mm inclusive, and a ratio L/D2 of the axial-direction dimension L to an outer diameter dimension D2 is 0.24-0.6 inclusive.
Inventors:
KOMATSUBARA SHINJI (JP)
ITO FUYUKI (JP)
NIWA TOSHIAKI (JP)
ITO FUYUKI (JP)
NIWA TOSHIAKI (JP)
Application Number:
PCT/JP2022/006942
Publication Date:
September 15, 2022
Filing Date:
February 21, 2022
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16C17/02; F16C17/10; F16C33/10; F16C33/12; H02K5/167; H02K7/08
Foreign References:
| JPH10306827A | 1998-11-17 | |||
| JP2006125461A | 2006-05-18 | |||
| JP2007024089A | 2007-02-01 |
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
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