CN204213177U - A kind of spacing oil-impregnated bearing - Google Patents
A kind of spacing oil-impregnated bearing Download PDFInfo
- Publication number
- CN204213177U CN204213177U CN201420657329.0U CN201420657329U CN204213177U CN 204213177 U CN204213177 U CN 204213177U CN 201420657329 U CN201420657329 U CN 201420657329U CN 204213177 U CN204213177 U CN 204213177U
- Authority
- CN
- China
- Prior art keywords
- oil
- impregnated bearing
- outer side
- spacing
- utility
- 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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Abstract
The utility model relates to technical field of bearings, especially a kind of spacing oil-impregnated bearing, there is central through bore, two circular end face and an outer side surface, outer side surface circumferentially offers some arc grooves, arc groove the best has four and is uniformly distributed along outer side surface, spacing oil-impregnated bearing of the present utility model is when applying, be installed in hole and only need very little magnitude of interference, can be spacing in hole, and the situation that long-time application there will not be oil-impregnated bearing to follow axle rotates together, improve the problem making the inner hole precision of oil-impregnated bearing be destroyed owing to needing large magnitude of interference, significantly improve working life and the quality of product of oil-impregnated bearing.
Description
Technical field
The utility model relates to technical field of bearings, especially a kind of spacing oil-impregnated bearing.
Background technique
Powder metallurgy oil-impregnated bearing is the porosity alloy product containing lubricant oil in a class hole, have cost low, can absorbing, noise little, within the longer operating time without features such as lubricating oil fillings, be specially adapted to the working environment not easily lubricating or do not allow oil dirty.Porosity is an important parameter of oil-impregnated bearing.The oil-impregnated bearing worked under high speed, underloading requires that oil content is many, and porosity should be high; High at the oil-impregnated bearing desired strength of the more lower work of low speed, load, porosity should be low.This bearing is invented in 20 beginnings of the century, because of its low cost of manufacture, easy to use, be widely applied, become the various industrial products such as automobile, household electrical appliances, stereo set, office equipment, farm machinery, precision optical machinery and developed an indispensable class fundamental parts.
In existing technology, oil-impregnated bearing is assembled in embody rule, all by bearing press-in hole by frock, oil-impregnated bearing is fixed by interference fit, but oil-impregnated bearing in press-in hole after, the endoporus of its oil-impregnated bearing has a miniature contour projector, the smaller the better concerning the contour projector of its endoporus oil-impregnated bearing, but adopt the assembling mode in this frock press-in hole, because oil-impregnated bearing outer side surface is circular, in order to prevent oil-impregnated bearing rotation, so magnitude of interference can be bigger than normal, contour projector becomes large thereupon, therefore the inner hole precision of oil-impregnated bearing can be destroyed, the endoporus of oil-impregnated bearing is easy to distortion, circularity is deteriorated, noise is there will be during running.Oil-impregnated bearing is in the application owing to being interference fit, and also there will be oil-impregnated bearing for a long time and loosen and follow axle and rotate together, bearing easily damages.
Model utility content
The technical problems to be solved in the utility model is: to make because needing interference fit that the inner hole precision of oil-impregnated bearing is destroyed, Internal Hole Deformation, circularity are deteriorated there will be noise in time operating and also there will be oil-impregnated bearing for a long time to loosen to follow together with axle and rotate, hold flimsy problem to solve existing axis.Now provide a kind of spacing oil-impregnated bearing, only need very little magnitude of interference when being installed in hole, long-time use also there will not be oil-impregnated bearing to follow axle rotation.
The utility model solves the technological scheme that its technical problem adopts: a kind of oil-impregnated bearing, and have central through bore, two circular end face and an outer side surface, described outer side surface circumferentially offers some arc grooves, is used for the rotation of spacing oil-impregnated bearing.
Further, described arc groove has four and is uniformly distributed along outer side surface, and at this moment the very little magnitude of interference that only needs of oil-impregnated bearing just can be arranged in hole, and oil-impregnated bearing rotation can not occur, and effectiveness comparison is good.
The beneficial effects of the utility model are: this uses novel spacing oil-impregnated bearing when applying, be installed in hole and only need very little magnitude of interference, can be spacing in hole, and the situation that long-time application there will not be oil-impregnated bearing to follow axle rotates together, improve the problem making owing to needing large magnitude of interference the inner hole precision of oil-impregnated bearing be destroyed, significantly improve working life and the quality of product of oil-impregnated bearing.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is plan view of the present utility model;
Fig. 2 is sectional view of the present utility model.
In figure: 1, arc groove, 2, central through bore, 3, outer side surface.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
Embodiment 1
As illustrated in fig. 1 and 2: a kind of spacing oil-impregnated bearing, have central through bore 2, two circular end face and an outer side surface 3, outer side surface 3 circumferentially offers some arc grooves 1.
As shown in Figure 1: described arc groove 1 has four and is uniformly distributed along outer side surface 3.
When embody rule, by frock by bearing press-in hole, mounting limit oil-impregnated bearing only needs very little magnitude of interference, just can complete installation, and spacing live the rotation of oil-impregnated bearing.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this model utility technological thought, can carry out various change and amendment completely.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to right.
Claims (2)
1. a spacing oil-impregnated bearing, has central through bore (2), two circular end face and an outer side surface (3), it is characterized in that: described outer side surface (3) circumferentially offers some arc grooves (1).
2. the spacing oil-impregnated bearing of one according to claim 1, is characterized in that: described arc groove (1) has four and is uniformly distributed along outer side surface (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420657329.0U CN204213177U (en) | 2014-11-05 | 2014-11-05 | A kind of spacing oil-impregnated bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420657329.0U CN204213177U (en) | 2014-11-05 | 2014-11-05 | A kind of spacing oil-impregnated bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204213177U true CN204213177U (en) | 2015-03-18 |
Family
ID=52981851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420657329.0U Expired - Fee Related CN204213177U (en) | 2014-11-05 | 2014-11-05 | A kind of spacing oil-impregnated bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204213177U (en) |
-
2014
- 2014-11-05 CN CN201420657329.0U patent/CN204213177U/en not_active Expired - Fee Related
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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: 20150318 Termination date: 20171105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |