Title:
Sintering metal bearing
Document Type and Number:
Japanese Patent JP6026123
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a copper-iron-based sintered metal bearing which can exhibit bearing performance equal to existing level or higher over a long period of time by achieving improvement in abrasion resistance and reduction in oil permeability at a low cost.SOLUTION: A sintered metal bearing is formed from a raw material powder essentially comprising a copper-based powder and an iron-based powder and has a radial bearing surface in the inner circumference. The copper-based powder used includes a fine copper powder which has such a particle size distribution that the proportion of particles having a diameter of less than 45 μm is 80 wt.% or more and occupies one-third by weight of the whole copper-based powder. A compressed body prepared by compression molding of the raw material powder is sintered at 900°C or more and 1,000°C or less.
Inventors:
Tetsuya Kurimura
Fuyuki Ito
Moat politics
Fuyuki Ito
Moat politics
Application Number:
JP2012072527A
Publication Date:
November 16, 2016
Filing Date:
March 27, 2012
Export Citation:
Assignee:
ntn corporation
International Classes:
F16C33/12; B22F1/00; B22F5/00; C22C33/02; C22C38/00; F16C17/10; F16C33/14
Domestic Patent References:
| JP2002349575A | ||||
| JP2010043686A |
Foreign References:
| WO2010106909A1 |
Attorney, Agent or Firm:
Kunihiko Shiromura
Tsuyoshi Kumano
Tsuyoshi Kumano
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