Method for manufacturing sintered bearing, sintered bearing, and vibration motor equipped with same
US-2016301279-A1 · Oct 13, 2016 · US
Sintered bearing
US9200670B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9200670-B2 |
| Application number | US-201113824170-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 2, 2011 |
| Priority date | Sep 27, 2010 |
| Publication date | Dec 1, 2015 |
| Grant date | Dec 1, 2015 |
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Abstract
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With use of a fine copper-based powder, specifically a copper-based powder that contains particles each having a diameter of 45 μm or less by 80 weight % or more, an air permeability can be significantly reduced. When this copper-based powder is used, a sintered metal can be easily formed to contain copper by 40% or less (contain iron by 60% or more) to enhance abrasion resistance, and to have an oil permeability of 1.00 g/10 min or less to increase an oil film formation rate.
First claim
Opening claim text (preview).
The invention claimed is: 1. A sintered bearing, which is made of a copper-iron-based sintered metal obtained by sintering a compact formed by compressing a copper-based powder and an iron-based powder, the sintered bearing having an inner peripheral surface which functions as a radial bearing surface, wherein the copper-based powder contains particles each having a diameter of 45 μm or less by more than 80 weight %, wherein the copper-iron-based sintered metal contains copper…
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Operations & Transport · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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- What does patent US9200670B2 cover?
- With use of a fine copper-based powder, specifically a copper-based powder that contains particles each having a diameter of 45 μm or less by 80 weight % or more, an air permeability can be significantly reduced. When this copper-based powder is used, a sintered metal can be easily formed to contain copper by 40% or less (contain iron by 60% or more) to enhance abrasion resistance, and to have …
- Who is the assignee on this patent?
- Ito Fuyuki, Mori Natsuhiko, Ntn Toyo Bearing Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification F16C33/104. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Dec 01 2015 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).