CN104863958A - Bearing structure - Google Patents
Bearing structure Download PDFInfo
- Publication number
- CN104863958A CN104863958A CN201510340108.XA CN201510340108A CN104863958A CN 104863958 A CN104863958 A CN 104863958A CN 201510340108 A CN201510340108 A CN 201510340108A CN 104863958 A CN104863958 A CN 104863958A
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- CN
- China
- Prior art keywords
- holder
- outer ring
- retainer
- bearing structure
- 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.)
- Pending
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- Rolling Contact Bearings (AREA)
Abstract
The invention relates to a bearing structure which is characterized in that the high speed angular contact rolling body bearing structure comprises an outer ring which is arranged as a circular outer ring, an inner ring which is arranged in the outer ring, a holder arranged between the inner ring and the outer ring and of which a pocket is formed in the middle, a rolling body which is arranged in the pocket of the holder. According to the bearing structure, the elliptic pocket of the holder enlarges the circumferential clearance between the rolling body and the pocket, and at the same time, stabilizes the axial clearance, so that lubricating oil can flow through the pocket more easily, the holder can be effectively cooled while that the side wall strength of the pocket of the holder is reduced is avoided, the instability of the holder in the axial direction is reduced, and the service life of the bearing is prolonged. The lubricating oil can flow through the pocket more easily, the holder is enabled to be effectively cooled, the strength reduction of the side wall of the pocket of the holder is avoided, and the instability of the holder in the axial direction is reduced.
Description
Technical field
The present invention relates to a kind of bearing structure.
Background technique
At present, High speed Angular Contact Ceramic rolling body bearing structure mostly is B7000C series, and nominal contact angle is 15 °, is mainly used in machine tool high speed electro spindle.It mainly adopts outer guide structure, retainer mostly is phenolic resin material, retainer pocket hole is positive round structure, when radial load is larger, the kinetic characteristic of retainer and rolling element makes rolling element and pocket hole surface can produce fierce collision, produce a large amount of frictional heats and the wearing and tearing of serious pocket hole, and cause retainer to rupture time serious and bearing burn.
Summary of the invention
For problems of the prior art, the object of the present invention is to provide a kind of technological scheme of bearing structure.
Described a kind of bearing structure, comprises inner ring, outer ring, rolling element, retainer, it is characterized in that described High speed Angular Contact Ceramic rolling body bearing structure comprises: outer ring, is set to circular outer ring; Inner ring, is arranged in described outer ring; Retainer, has pocket hole in the middle of it, is arranged between described inner ring and outer ring; Rolling element, is arranged in the pocket hole of retainer.
Described a kind of bearing structure, is characterized in that the pocket hole in the middle of described retainer is elliptical pocket hole.
Described a kind of bearing structure, is characterized in that described rolling element is spherical structure.
The elliptical pocket hole of retainer of the present invention increases the radial clearance in rolling element and pocket hole, Simultaneous Stabilization axial clearance, lubricant oil is made to flow more easily through pocket hole, weakening of retainer pocket hole side wall strength is also avoid while making retainer effective cooling, reduce the unstability of retainer axis, extend the working life of bearing.Lubricant oil flows more easily through pocket hole, makes retainer effective cooling, avoids weakening of retainer pocket hole side wall strength, reduces retainer axial instability.The invention solves the kinetic characteristic because of retainer and rolling element in the using process of High speed Angular Contact Ceramic rolling body bearing structure, rolling element and retainer pocket hole surface is made to produce fierce collision and produce a large amount of frictional heat and the wearing and tearing of serious pocket hole, cause the problem that bearing working life is short, structure is simple, easy to implement.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is bearing cage structure schematic diagram of the present invention.
Embodiment
Below in conjunction with Figure of description, the present invention will be further described:
Bearing structure of the present invention is, arranges inner ring 2 in outer ring 1, arranges retainer 4 between outer ring 1 and inner ring 2, and have elliptical pocket hole in the middle of retainer 4, rolling element 3 is arranged between inner ring 2 and outer ring 1, and rolling element 3 is arranged in the elliptical pocket hole of retainer.As shown in Figure 2 for having elliptical pocket hole 5 in the middle of retainer 4.
Bearing parts retainer 4 is processed into the elliptical pocket hole 5 as shown in Fig. 2 by the present invention, reduces collision and the friction in rolling element 3 and elliptical pocket hole 5.Elliptical pocket hole 5 shown in Fig. 2, while the radial clearance strengthening rolling element 3 and elliptical pocket hole 5, stabilizes axial clearance, makes lubricant oil flow more easily through elliptical pocket hole 5, make retainer 4 and rolling element 3 obtain effective cooling.
Claims (3)
1. a bearing structure, comprises inner ring, outer ring, rolling element, retainer, it is characterized in that described High speed Angular Contact Ceramic rolling body bearing structure comprises: outer ring, is set to circular outer ring; Inner ring, is arranged in described outer ring; Retainer, has pocket hole in the middle of it, is arranged between described inner ring and outer ring; Rolling element, is arranged in the pocket hole of retainer.
2. a kind of bearing structure according to claim 1, is characterized in that the pocket hole in the middle of described retainer is elliptical pocket hole.
3. a kind of bearing structure according to claim 1, is characterized in that described rolling element is spherical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510340108.XA CN104863958A (en) | 2015-06-18 | 2015-06-18 | Bearing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510340108.XA CN104863958A (en) | 2015-06-18 | 2015-06-18 | Bearing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104863958A true CN104863958A (en) | 2015-08-26 |
Family
ID=53910028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510340108.XA Pending CN104863958A (en) | 2015-06-18 | 2015-06-18 | Bearing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104863958A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464559A (en) * | 2021-07-26 | 2021-10-01 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Bearing retainer |
-
2015
- 2015-06-18 CN CN201510340108.XA patent/CN104863958A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113464559A (en) * | 2021-07-26 | 2021-10-01 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Bearing retainer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150826 |