Tapered roller bearing
US-2022196065-A1 · Jun 23, 2022 · US
Sliding member
US11629755B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11629755-B2 |
| Application number | US-202117178662-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 18, 2021 |
| Priority date | Mar 26, 2020 |
| Publication date | Apr 18, 2023 |
| Grant date | Apr 18, 2023 |
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- Title
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- Abstract
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- First independent claim
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Abstract
Official abstract text for this publication.
A sliding member includes a resin overlay layer on a sliding surface side coming into sliding contact with a mating member. The resin overlay layer has a surface roughness parameter Rk satisfying 0.4≤Rk≤1.2, and a surface area ratio S=S2/S1 calculated when an area of an arbitrary measurement field of view is designated by S1 and a surface area of the measurement field of view is designated by S2 satisfies 2.5≤S≤4.5.
First claim
Opening claim text (preview).
What is claimed is: 1. A sliding member comprising a resin overlay layer on a sliding surface side coming into sliding contact with a mating member, wherein the resin overlay layer has a surface roughness parameter Rk satisfying 0.4≤Rk≤1.2, and a surface area ratio S=S1/S2 calculated when an area of an arbitrary measurement field of view is designated by S1 and a surface area of the measurement field of view is designated by S2 satisfies 2.5≤S≤4.5. 2. The sliding member according to claim 1 , wherein the roughness parameter Rk satisfies 0.6≤Rk≤1.0. 3. The sliding member according to claim 1 , wherein the resin overlay layer contains 5.0 vol % to 30 vol % of a solid lubricant. 4. The sliding member according to claim 3 , wherein the solid lubricant contains 1.0 vol % to 15 vol % of a fluorine-based resin.
Assignees
Inventors
Classifications
- F16C33/1095Primary
with solids as lubricant, e.g. dry coatings, powder · CPC title
Details of overlays · CPC title
Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing · CPC title
Optimisation of rolling resistance, e.g. weight reduction · CPC title
Surface roughness · CPC title
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- What does patent US11629755B2 cover?
- A sliding member includes a resin overlay layer on a sliding surface side coming into sliding contact with a mating member. The resin overlay layer has a surface roughness parameter Rk satisfying 0.4≤Rk≤1.2, and a surface area ratio S=S2/S1 calculated when an area of an arbitrary measurement field of view is designated by S1 and a surface area of the measurement field of view is designated by S…
- Who is the assignee on this patent?
- Daido Metal Co
- What technology area does this patent fall under?
- Primary CPC classification F16C33/1095. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Apr 18 2023 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).