CN204253605U - A kind of needle bearing - Google Patents
A kind of needle bearing Download PDFInfo
- Publication number
- CN204253605U CN204253605U CN201420741516.7U CN201420741516U CN204253605U CN 204253605 U CN204253605 U CN 204253605U CN 201420741516 U CN201420741516 U CN 201420741516U CN 204253605 U CN204253605 U CN 204253605U
- Authority
- CN
- China
- Prior art keywords
- inner ring
- retainer
- needle
- embedded
- 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
A kind of needle bearing, belongs to component of machine technical field.Comprise inner ring, retainer, it is characterized in that the needle rollers of the uniform setting of one group of annular is embedded freely to rotate in retainer, inner ring one end arranges locating flange, on retainer, correspondence arranges limited impression, have gap between locating flange, limited impression, the inner ring the other end arranges inner ring caulking groove, and retainer end is embedded in inner ring caulking groove, inner ring arranges rolling groove, and needle rollers is embedded in rolling groove and freely rotates.Above-mentioned a kind of needle bearing, compact structure, volume is little, and frictional force is little, and running accuracy is high, can bear certain axial load while high radial load very much bearing, and install, easy to use.
Description
Technical field
The utility model belongs to component of machine technical field, is specially a kind of needle bearing.
Background technique
The radial structure of needle bearing is compact, and when in it, needle bearing footpath size is identical with other types bearing with load-carrying ability, external diameter is minimum, is specially adapted to the restricted supporting structure of radial installation dimension.Existing needle bearing, the frictional force of retainer and inner ring is comparatively large, reduces the performance and used life of bearing; Because needle roller and inner ring are cylindrical structural, during rotation, limit effect is bad, have impact on running accuracy; And during assembling, radially and axially very restricted, install difficulty, assembling costly.
Model utility content
For the above-mentioned problems in the prior art, the purpose of this utility model is to design the technological scheme providing needle bearing that a kind of compact structure volume is little, its frictional force is little, running accuracy is high, can bear certain axial load while high radial load very much bearing, and install, easy to use.
Described a kind of needle bearing, comprise inner ring, retainer, it is characterized in that the needle rollers of the uniform setting of one group of annular is embedded freely to rotate in retainer, inner ring one end arranges locating flange, and on retainer, correspondence arranges limited impression, has gap between locating flange, limited impression, the inner ring the other end arranges inner ring caulking groove, retainer end is embedded in inner ring caulking groove, and inner ring arranges rolling groove, and needle rollers is embedded in rolling groove and freely rotates.
Described a kind of needle bearing, is characterized in that the degree of depth of rolling groove is 0.2-0.5mm.
Described a kind of needle bearing, is characterized in that the diameter of needle rollers is 1-3mm, and the length of needle rollers is for being 3-10mm.
Described a kind of needle bearing, is characterized in that the spacing between positioning rod, restraining groove is 0.5-1mm.
Above-mentioned a kind of needle bearing, compact structure, volume is little, and frictional force is little, and running accuracy is high, can bear certain axial load while high radial load very much bearing, and install, easy to use.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
In figure: 1-needle rollers, 2-retainer, 201-limited impression, 3-inner ring, 301-locating flange, 302-rolling groove, 303-inner ring caulking groove.
Embodiment
Below in conjunction with Figure of description, the utility model is described in further detail.
As shown in the figure, this is wear-resistant needle bearing, comprise inner ring 3, retainer 2 and outer ring 4, the needle rollers 1 of the uniform setting of one group of annular is embedded and freely rotates in retainer 2, inner ring 3 one end arranges locating flange 301, on retainer 2, correspondence arranges limited impression 201, between locating flange 301, limited impression 201, there is gap, inner ring 3 the other end arranges inner ring caulking groove 303, retainer 2 end is embedded in inner ring caulking groove 303, inner ring 3 is arranged rolling groove 302, needle rollers 1 is embedded in rolling groove 302 and freely rotates.The degree of depth of rolling groove 302 is 0.2-0.5mm, and the diameter of needle rollers 1 is 1-3mm, and the length of needle rollers 1 is for being 3-10mm, and the spacing between positioning rod 301, restraining groove 201 is 0.5-1mm.
Between the locating flange 301 of above-mentioned bearing, limited impression 201, there is gap, not only rotate freely, also reduce frictional force, and the lubricants capacity leaked to Bearing outer from the gap between inner ring 3, retainer 2 can be reduced; Inner ring 3 is arranged rolling groove 302, better to the limit effect of needle rollers 1, improve running accuracy; This bearing can bear certain axial load while high radial load very much bearing, and install, easy to use.
Claims (4)
1. a needle bearing, comprise inner ring (3), retainer (2), it is characterized in that the needle rollers (1) of the uniform setting of one group of annular is embedded freely to rotate in retainer (2), inner ring (3) one end arranges locating flange (301), the upper correspondence of retainer (2) arranges limited impression (201), locating flange (301), limited impression has gap between (201), inner ring (3) the other end arranges inner ring caulking groove (303), retainer (2) end is embedded in inner ring caulking groove (303), inner ring (3) is arranged rolling groove (302), needle rollers (1) is embedded in rolling groove (302) and freely rotates.
2. a kind of needle bearing as claimed in claim 1, is characterized in that the degree of depth of rolling groove (302) is 0.2-0.5mm.
3. a kind of needle bearing as claimed in claim 1, is characterized in that the diameter of needle rollers (1) is 1-3mm, and the length of needle rollers (1) is for being 3-10mm.
4. a kind of needle bearing as claimed in claim 1, is characterized in that the spacing between positioning rod (301), restraining groove (201) is 0.5-1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420741516.7U CN204253605U (en) | 2014-12-02 | 2014-12-02 | A kind of needle bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420741516.7U CN204253605U (en) | 2014-12-02 | 2014-12-02 | A kind of needle bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204253605U true CN204253605U (en) | 2015-04-08 |
Family
ID=52957918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420741516.7U Expired - Fee Related CN204253605U (en) | 2014-12-02 | 2014-12-02 | A kind of needle bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204253605U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211901A (en) * | 2020-09-27 | 2021-01-12 | 绍兴市上虞区理工高等研究院 | Thrust type cylindrical roller bearing |
| CN114483775A (en) * | 2022-01-28 | 2022-05-13 | 中国铁建重工集团股份有限公司 | Slewing bearing and assembling method thereof |
-
2014
- 2014-12-02 CN CN201420741516.7U patent/CN204253605U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211901A (en) * | 2020-09-27 | 2021-01-12 | 绍兴市上虞区理工高等研究院 | Thrust type cylindrical roller bearing |
| CN114483775A (en) * | 2022-01-28 | 2022-05-13 | 中国铁建重工集团股份有限公司 | Slewing bearing and assembling method thereof |
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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: 20150408 Termination date: 20171202 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |