Title:
FERROUS SINTER OIL-CONTAINING BEARING
Document Type and Number:
WIPO Patent Application WO/2018/100660
Kind Code:
A1
Abstract:
Provided is a ferrous sinter oil-containing bearing that has a bearing surface for supporting the outer circumferential surface of a shaft, and has a ferrous sinter bearing, which is made of a ferrous sinter alloy in which pores are dispersed, and a lubricating oil impregnated in the pores. As mass ratios, the overall composition of the ferrous sinter alloy that makes up the ferrous sinter bearing is made of Cu: 0.5-3%, C: 1-5%, S: 0.3-2%, the balance being made of Fe and unavoidable impurities. The density of the ferrous sinter alloy is 5.2-7.2 g/cm3. The ferrous sinter alloy exhibits a metallographic structure wherein copper phases and graphite phases are dispersed in a base, which is one metal structure from among ferrite structures, pearlite structures and mixed ferrite and pearlite structures, and sulfide phases are precipitated from the base and/or copper phases and are dispersed.
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Inventors:
MIYAZAKI RYOICHI (JP)
KAWATA HIDEAKI (JP)
KAWATA HIDEAKI (JP)
Application Number:
PCT/JP2016/085507
Publication Date:
June 07, 2018
Filing Date:
November 30, 2016
Export Citation:
Assignee:
HITACHI CHEMICAL CO LTD (JP)
International Classes:
C22C38/00; B22F5/00; C22C33/02; F16C33/10
Foreign References:
JP2013076152A | 2013-04-25 | |||
JP2014066271A | 2014-04-17 | |||
JP2014177658A | 2014-09-25 |
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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