CN204186793U - A kind of double-row angular contact bal bearing - Google Patents
A kind of double-row angular contact bal bearing Download PDFInfo
- Publication number
- CN204186793U CN204186793U CN201420314472.XU CN201420314472U CN204186793U CN 204186793 U CN204186793 U CN 204186793U CN 201420314472 U CN201420314472 U CN 201420314472U CN 204186793 U CN204186793 U CN 204186793U
- Authority
- CN
- China
- Prior art keywords
- inner ring
- bearing
- double
- angular contact
- retainer
- Prior art date
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- Expired - Fee Related
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- Rolling Contact Bearings (AREA)
Abstract
Relate to the double-row angular contact bal bearing in two zero foil rolling mill accessory field, described bearing comprises inner ring, outer ring, retainer and multiple rolling element; Described multiple rolling elements are arranged in raceway corresponding between inner ring outer diameter face and outer ring aperture surface uniformly by two retainers be arranged in parallel, and the pocket centerline hole of two retainers is all corresponding parallel with track centre line; Described bearing not only can meet the applying working condition of two zero foil rolling mill, but also can avoid the bearing early failure phenomena that causes because retainer fracture.
Description
[technical field]
The utility model relates to two zero foil rolling mill accessory field, especially relates to a kind of double-row angular contact bal bearing being applied to two zero foil rolling mill.
[background technique]
Known, what existing two zero foil rolling mill work roll thrust double-row angular contact bal bearing adopted is pocket centerline hole is parallel with Line of contact or be provided with the taper retainer of certain angle, see accompanying drawing 1 ~ 2, simultaneously, because have two row rolling elements, and width is larger, so, double-row angular contact bal bearing is suitable for working under the medium axial load condition of high speed, but, due to double-row angular contact bal bearing when bearing axial force can only one row stressed, therefore, its ability of bearing thrust load is in actual applications less, and then cause existing double-row angular contact bal bearing ubiquity early failure phenomena in actual application, at present, the main failure mode of existing double-row angular contact bal bearing is the wearing and tearing of retainer pocket hole and retainer fracture, and wherein, the retainer fracture occurred in the course of the work also can cause bearing stuck, or even occurs accidents such as catching fire, find by analysis, the retainer fracture of double-row angular contact bal bearing is mainly because the structure of its taper retainer cannot meet the applying working condition of two zero foil rolling mill, concrete reason is that its rotating speed is high, bearing rise by bending roller force curved after, there is chiasma interference in steel ball and retainer, meanwhile, lubricant oil not easily enters again the cooling of retainer pocket hole fully, therefore just result in the phenomenon that early failue easily occurs double-row angular contact bal bearing.
[summary of the invention]
In order to overcome the deficiency in background technique, the utility model discloses a kind of double-row angular contact bal bearing, described bearing not only can meet the applying working condition of two zero foil rolling mill, but also can avoid the bearing early failure phenomena that causes because retainer fracture.
For achieving the above object, the utility model adopts following technological scheme:
A kind of double-row angular contact bal bearing, described bearing comprises inner ring, outer ring, retainer and multiple rolling element; Described multiple rolling elements are arranged in raceway corresponding between inner ring outer diameter face and outer ring aperture surface uniformly by two retainers be arranged in parallel, and the pocket centerline hole of two retainers is all corresponding parallel with track centre line.
Further, described inner ring is structure as a whole, and the end face diameter at inner ring two ends is less than the diameter in the middle part of inner ring.
Further, described pocket hole inwall is provided with the cone angle of corresponding inner ring.
Owing to adopting technological scheme as above, the utility model has following beneficial effect:
Double-row angular contact bal bearing described in the utility model is easy to install, be convenient to dismounting, described bearing not only can meet the applying working condition of two zero foil rolling mill, but also can guarantee to cause the accidents such as the early failue of bearing and milling train shutdown accordingly because of the fracture of retainer in the application process of reality; In addition, described bearing effectively can also improve the axial carrying capacity of self, thus reaches the object in its working life of corresponding prolongation.
[accompanying drawing explanation]
Fig. 1 is existing double-row angular contact bal bearing schematic diagram;
Fig. 2 is the schematic diagram of the retainer that Fig. 1 middle (center) bearing adopts;
Fig. 3 is schematic diagram of the present utility model;
Fig. 4 is the schematic diagram of the retainer that Fig. 3 middle (center) bearing adopts.
In figure: 1, inner ring; 2, outer ring; 3, retainer; 4, rolling element; 5, pocket hole.
[embodiment]
Can explain the present invention in more detail by the following examples, open the purpose of this utility model is intended to protect all changes and improvements within the scope of the utility model, and the utility model is not limited to the following examples:
By reference to the accompanying drawings 3 ~ 4, described double-row angular contact bal bearing comprises inner ring 1, outer ring 2, retainer 3 and multiple rolling element 4; Described multiple rolling elements 4 are arranged in raceway corresponding between inner ring 1 outer diameter face and outer ring 2 aperture surface by two retainers 3 be arranged in parallel uniformly, and pocket hole 5 center line of two retainers 3 is all corresponding parallel with the track centre line of Internal and external cycle, namely retainer 3 pocket hole 5 adopts ball pocket to guide, and the center line in pocket hole 5 is parallel with lasso track centre line; For ease of installing/dismounting, inner ring 1 can be set to an overall structure, the end face diameter at inner ring 1 two ends is set to the diameter be less than in the middle part of inner ring 1 simultaneously, and the inwall in pocket hole 5 is provided with the cone angle of corresponding inner ring 1, namely the part of the corresponding inner ring 1 of the inwall in pocket hole 5 is provided with the cone angle being more conducive to lubricate and rolling element 4 rolls; Confirm through most experiments, described bearing is more suitable for high rotating speed, and bearing is by the applying working condition after bending roller force, it can effectively avoid the retainer 3 caused by chiasma interference rising between curved rear rolling element 4 and retainer 3 pocket hole 5 by bending roller force at bearing to rupture; Meanwhile, also because described bearing is more conducive to lubrication, therefore, it is possible to alleviate the wearing and tearing of retainer 3 accordingly, and then effectively extend working life and the user demand meeting client.
The non-detailed portion of the utility model is prior art, therefore the utility model is not described in detail.
Claims (2)
1. a double-row angular contact bal bearing, described bearing comprises inner ring (1), outer ring (2), retainer (3) and multiple rolling element (4); It is characterized in that: described multiple rolling elements (4) are arranged in raceway corresponding between inner ring (1) outer diameter face and outer ring (2) aperture surface uniformly by two retainers be arranged in parallel (3), and pocket hole (5) center line of two retainers (3) is all corresponding parallel with track centre line; Described pocket hole (5) inwall is provided with the cone angle of corresponding inner ring (1).
2. double-row angular contact bal bearing according to claim 1, is characterized in that: described inner ring (1) is structure as a whole, and the end face diameter at inner ring (1) two ends is less than the diameter at inner ring (1) middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420314472.XU CN204186793U (en) | 2014-06-13 | 2014-06-13 | A kind of double-row angular contact bal bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420314472.XU CN204186793U (en) | 2014-06-13 | 2014-06-13 | A kind of double-row angular contact bal bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204186793U true CN204186793U (en) | 2015-03-04 |
Family
ID=52618800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420314472.XU Expired - Fee Related CN204186793U (en) | 2014-06-13 | 2014-06-13 | A kind of double-row angular contact bal bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204186793U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041854A (en) * | 2015-07-31 | 2015-11-11 | 洛阳轴研科技股份有限公司 | Serial connection assembly type biserial angular contact ball bearing and assembling method thereof |
| CN105114447A (en) * | 2015-07-31 | 2015-12-02 | 洛阳轴研科技股份有限公司 | Face-to-face type assembled double-row angular contact ball bearing and assembling method thereof |
-
2014
- 2014-06-13 CN CN201420314472.XU patent/CN204186793U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041854A (en) * | 2015-07-31 | 2015-11-11 | 洛阳轴研科技股份有限公司 | Serial connection assembly type biserial angular contact ball bearing and assembling method thereof |
| CN105114447A (en) * | 2015-07-31 | 2015-12-02 | 洛阳轴研科技股份有限公司 | Face-to-face type assembled double-row angular contact ball bearing and assembling method thereof |
| CN105041854B (en) * | 2015-07-31 | 2018-06-29 | 洛阳轴承研究所有限公司 | A kind of tandem assembles double-row angular contact bal bearing and its compound formulation |
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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: 20150304 Termination date: 20210613 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |