CN201198873Y - Outer ring of needle roller bearing without inner ring - Google Patents
Outer ring of needle roller bearing without inner ring Download PDFInfo
- Publication number
- CN201198873Y CN201198873Y CNU2008200221841U CN200820022184U CN201198873Y CN 201198873 Y CN201198873 Y CN 201198873Y CN U2008200221841 U CNU2008200221841 U CN U2008200221841U CN 200820022184 U CN200820022184 U CN 200820022184U CN 201198873 Y CN201198873 Y CN 201198873Y
- Authority
- CN
- China
- Prior art keywords
- outer ring
- needle roller
- ring
- bearing
- roller bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Rolling Contact Bearings (AREA)
Abstract
The utility model provides a technical proposal that an external ring is not provided with an internal ring needle bearing; the utility model has two technical proposals as follows: the first technical proposal: an external ring is included; the first technical proposal is characterized in that the internal surface of the external ring is a concave drum-shaped cylindrical surface; the second technical proposal: an external ring is included; the second technical proposal is characterized in that the internal surface of the external ring is provided with a cylindrical surface on the top of the concave drum-shaped cylindrical surface.
Description
Technical field:
The utility model relates to a kind of needle bearing that uses on the machinery, especially a kind of outer ring of needle roller bearing without inner ring.
Background technique:
In the prior art, technique known is the needle roller bearing without inner ring in usefulness, this bearing mainly contains outer ring, retainer and a plurality of needle roller and forms, generally be installed on the two ends of axle, when axle was subjected to bigger radial force, axle can produce deflection deformation, and the bearing outer ring that makes back shaft has only the end contact, lifting surface area is little, very easily forms spot corrosion, distortion and wearing and tearing in the contacting point, causes bearing early failue.For fear of end contact, there is employing that the needle roller of bearing is processed into drum organization at present, still, this has just increased manufacturing and assembling difficulty and cost, and this is the existing in prior technology deficiency.
Summary of the invention:
The purpose of this utility model, be exactly at the existing in prior technology deficiency, and provide a kind of outer ring technological scheme of needle roller bearing without inner ring, this scheme to adopt inner surface to be processed into recessed cydariform cylinder or cylindrical cylinder to be arranged at the top of recessed cydariform cylinder with bearing outer ring.The outer ring of this structure, because the internal surface of outer ring is an arc, columniform needle roller is when stressed when deflection occurring, be arc swing, can not change the area of contact of needle roller and outer ring, therefore along inner surface, actual loading area when having guaranteed needle bearing work, improve the bearing capacity of bearing, avoid bearing early failue, thereby prolong the working life of bearing.
This programme is realized by following two technical measures:
First technological scheme: include the outer ring, the characteristics of this programme are that the inner surface of described outer ring is recessed cydariform cylinder.
Second technological scheme: include the outer ring, the characteristics of this programme are that the inner surface of described outer ring is at the top of recessed cydariform cylinder cylindrical cylinder to be arranged.
The beneficial effect of this programme can learn according to the narration to such scheme, because in this scheme, the inner surface of bearing outer ring is processed into recessed cydariform cylinder or at the top of recessed cydariform cylinder cylindrical cylinder arranged.The outer ring of this structure, because the internal surface of outer ring is an arc, columniform needle roller is when stressed when deflection occurring, it is arc swing along inner surface, can not change the area of contact of needle roller and outer ring, avoided lifting surface area to reduce, form spot corrosion, distortion and wear phenomenon in the contacting point, therefore, actual loading area when having guaranteed needle bearing work, the bearing capacity of raising bearing is avoided bearing early failue, thereby prolong the working life of bearing, and can not increase difficulty and the cost of making and assembling.This shows that the utility model compared with prior art has substantive distinguishing features and progress, the beneficial effect of its enforcement also is conspicuous.
Description of drawings:
Fig. 1 is the sectional structure schematic representation of first technological scheme embodiment of the utility model.
Fig. 2 is the sectional structure schematic representation of second technological scheme embodiment of the utility model.
Among the figure, 1 is the outer ring, and 2 is inner surface, and 3 is cylindrical cylinder.
Embodiment:
For clearly demonstrating the technical characterstic of this programme,, and, this programme is set forth in conjunction with its accompanying drawing below by two embodiments.
By accompanying drawing 1 as can be seen, the outer ring of the needle roller bearing without inner ring of this programme, the inner surface 2 of this outer ring 1 is recessed cydariform cylinder.
By accompanying drawing 2 as can be seen, the outer ring of the needle roller bearing without inner ring of this programme, the inner surface 2 of this outer ring 1 is that cylindrical cylinder 3 is arranged at the top of recessed cydariform cylinder.
Claims (2)
1. the outer ring of a needle roller bearing without inner ring includes the outer ring, it is characterized in that: the inner surface of described outer ring is recessed cydariform cylinder.
2. the outer ring of a needle roller bearing without inner ring includes the outer ring, it is characterized in that: the inner surface of described outer ring is at the top of recessed cydariform cylinder cylindrical cylinder to be arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200221841U CN201198873Y (en) | 2008-05-12 | 2008-05-12 | Outer ring of needle roller bearing without inner ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200221841U CN201198873Y (en) | 2008-05-12 | 2008-05-12 | Outer ring of needle roller bearing without inner ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201198873Y true CN201198873Y (en) | 2009-02-25 |
Family
ID=40450028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200221841U Expired - Fee Related CN201198873Y (en) | 2008-05-12 | 2008-05-12 | Outer ring of needle roller bearing without inner ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201198873Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915267A (en) * | 2010-08-24 | 2010-12-15 | 徐州科源液压有限公司 | Concave rolling passage needle bearing in planetary transmission mechanism |
-
2008
- 2008-05-12 CN CNU2008200221841U patent/CN201198873Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915267A (en) * | 2010-08-24 | 2010-12-15 | 徐州科源液压有限公司 | Concave rolling passage needle bearing in planetary transmission mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090225 Termination date: 20150512 |
|
| EXPY | Termination of patent right or utility model |