Cooling system
US-10295231-B2 · May 21, 2019 · US
Pressure nitrided stainless steel hybrid bearing for a refrigerant lubricated compressor
US2016010691A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016010691-A1 |
| Application number | US-201414763213-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jan 24, 2014 |
| Priority date | Jan 25, 2013 |
| Publication date | Jan 14, 2016 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A pressure nitrided stainless steel hybrid ball bearing having an inner ring, an outer ring, and rolling elements disposed therebetween. The pressure nitrided stainless steel hybrid bearing has one or more component(s) made from a pressure nitrided stainless steel material. The pressure nitrided stainless steel hybrid bearing used with a refrigerant lubrication for chiller applications leads to a very long useful life time.
First claim
Opening claim text (preview).
What is claimed is: 1 . A hybrid bearing, comprising: a race made from a pressure nitrided stainless steel, wherein the pressure nitrided stainless steel has nitrogen concentration range of equal to or greater than 0.3%, carbon concentration range of 0.10-0.60%, and chromium concentration range of 10-18%. 2 . The hybrid bearing according to claim 1 , wherein the pressure nitrided stainless steel has an ASTM E112 grain size number range having a value of equal to or greater than 10. 3 . The hybrid bearing according to claim 1 , wherein the pressure nitrided stainless steel having an ASTM A295 inclusion rating for sulfide of equal to or less than ½. 4 . The hybrid bearing according to claim 1 , wherein the pressure nitrided stainless steel having an ASTM A295 inclusion rating for alumina of equal to or less than ½. 5 . The hybrid bearing according to claim 1 , wherein the pressure nitrided stainless steel having an ASTM A295 inclusion rating for silicate of equal to or less than ½. 6 . The hybrid bearing according to claim 1 , wherein the pressure nitrided stainless steel having an ASTM A295 inclusion rating for globular oxide of equal to or less than ½. 7 . A compressor, comprising: the hybrid bearing according to claim 1 . 8 . A hybrid bearing, comprising: a race made from a pressure nitrided stainless steel, wherein the pressure nitrided stainless steel has nitrogen concentration range of greater than 0.1%, carbon concentration range of 0.10-0.60%, and chromium concentration range of 12-18%. 9 . The hybrid bearing according to claim 8 , wherein the pressure nitrided stainless steel has an ASTM E112 grain size number range having a value of equal to or greater than 10. 10 . The hybrid bearing according to claim 8 , wherein the pressure nitrided stainless steel having an ASTM A295 inclusion rating for sulfide of equal to or less than ½. 11 . The hybrid bearing according to claim 8 , wherein the pressure nitrided stainless steel having an ASTM A295 inclusion rating for alumina of equal to or less than ½. 12 . The hybrid bearing according to claim 8 , wherein the pressure nitrided stainless steel having an ASTM A295 inclusion rating for silicate of equal to or less than ½. 13 . The hybrid bearing according to claim 8 , wherein the pressure nitrided stainless steel having an ASTM A295 inclusion rating for globular oxide of equal to or less than ½. 14 . A compressor, comprising: the hybrid bearing according to claim 8 .
Assignees
Inventors
Classifications
Bearings · CPC title
- F16C33/303Primary
of hybrid bearings, e.g. rolling bearings with steel races and ceramic rolling elements · CPC title
Nitrides · CPC title
- F16C33/62Primary
Selection of substances · CPC title
Iron · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2016010691A1 cover?
- A pressure nitrided stainless steel hybrid ball bearing having an inner ring, an outer ring, and rolling elements disposed therebetween. The pressure nitrided stainless steel hybrid bearing has one or more component(s) made from a pressure nitrided stainless steel material. The pressure nitrided stainless steel hybrid bearing used with a refrigerant lubrication for chiller applications leads to…
- Who is the assignee on this patent?
- Trane Int Inc
- What technology area does this patent fall under?
- Primary CPC classification F16C33/303. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Jan 14 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).