Sliding member
US-2016333932-A1 · Nov 17, 2016 · US
Sintered bearing
US10125819B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10125819-B2 |
| Application number | US-201314414555-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 23, 2013 |
| Priority date | Jul 26, 2012 |
| Publication date | Nov 13, 2018 |
| Grant date | Nov 13, 2018 |
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- Title
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Abstract
Official abstract text for this publication.
Provided is a sintered bearing (1) obtained by molding raw material powders containing graphite powder and metal powder in a mold, followed by sintering, in which: the graphite powder to be used includes granulated graphite powder; and a ratio of free graphite in a bearing surface (1a) of the sintered bearing is set to from 25% to 80% in terms of an area ratio. An average grain size of the granulated graphite powder is set to from 60 μm to 500 μm. A blending ratio of the granulated graphite powder in the raw material powders is set to from 3 wt % to 15 wt %.
First claim
Opening claim text (preview).
The invention claimed is: 1. A sintered bearing comprising raw material powders containing graphite powder and metal powder that have been molded in a mold and then sintered, wherein: the graphite powder comprises granulated graphite powder; a ratio of free graphite, which is derived from the granulated graphite powder, in a bearing surface of the sintered bearing is set to from 25% to 80% in terms of an area ratio; and an apparent density of the granulated graphite powder is set to 1.0 g/cm 3 or less. 2. A sintered bearing comprising raw material powders containing graphite powder and metal powder that have been molded in a mold and then sintered, wherein: the graphite powder comprises granulated graphite powder; a ratio of free graphite, which is derived from the granulated graphite powder, in a bearing surface of the sintered bearing is set to from 25% to 80% in terms of an area ratio; and the sintered bearing is used without being impregnated with lubricating oil.
Assignees
Inventors
Classifications
with different areas of the sliding surface consisting of different materials · CPC title
Sliding surface consisting mainly of graphite · CPC title
of sintered porous bearings · CPC title
- F16C33/128Primary
Porous bearings, e.g. bushes of sintered alloy · CPC title
in a porous body, e.g. oil impregnated sintered sleeve · CPC title
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- What does patent US10125819B2 cover?
- Provided is a sintered bearing (1) obtained by molding raw material powders containing graphite powder and metal powder in a mold, followed by sintering, in which: the graphite powder to be used includes granulated graphite powder; and a ratio of free graphite in a bearing surface (1a) of the sintered bearing is set to from 25% to 80% in terms of an area ratio. An average grain size of the gran…
- Who is the assignee on this patent?
- Ito Yoshinori, Gotou Takahiro, Ntn Toyo Bearing Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F16C33/128. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Nov 13 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).