CN101270774A - Accurate bidirectional angular contact thrust ball bearing - Google Patents
Accurate bidirectional angular contact thrust ball bearing Download PDFInfo
- Publication number
- CN101270774A CN101270774A CNA2008100112533A CN200810011253A CN101270774A CN 101270774 A CN101270774 A CN 101270774A CN A2008100112533 A CNA2008100112533 A CN A2008100112533A CN 200810011253 A CN200810011253 A CN 200810011253A CN 101270774 A CN101270774 A CN 101270774A
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- CN
- China
- Prior art keywords
- bearing
- retainer
- angular contact
- thrust ball
- contact thrust
- 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.)
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Abstract
The utility model relates to an exact angular contact ball bearing of bidirectional thrust, consisting of a bearing housing washer (1), a retainer (2), a bearing spacer (3), a steel ball (4) and a bearing shaft washer (5). The utility model is characterized in that the steel ball (4) is contained in the retainer (2). The retainer of the external guide structure of the prior bearing is designed to be the retainer of a rolling element guide. The utility model has the beneficial effects that the noise and the temperature rise generated by the bearing in high-speed rotation process is reduced and the rotating precision of a main shaft is kept; and besides, the performance of the main shaft is improved.
Description
Technical field
The invention belongs to bearing material and technical field of structures, relate to a kind of accurate bidirectional angular contact thrust ball bearing with nylon cages.
Background technique
At present, domestic machine tool chief axis is the brass retainer with the bidirectional angular contact thrust ball bearing employing, and the material and the structure of this kind retainer are applied in the national economy always.The brass retainer exists the shortcoming of the big and temperature rise of noise in main shaft high speed rotating process in production practices, its reason is: as shown in Figure 1, the bearing of this kind structure is outer guiding, 6 pairs of steel balls of brass retainer 4 are half subsumption architecture, be bearing when rotated the weight of brass retainer 6 bear by bearing ring, so just make bearing ring and retainer produce very big friction, produce frictional heat, this friction can produce noise.
Summary of the invention
The purpose of this invention is to provide a kind of accurate bidirectional angular contact thrust ball bearing, this bearing adopts the retainer of nylon material, and the retainer of the outer guide structure of original bearing is designed to the retainer of rolling element guiding, reduce noise and temperature rise that bearing is produced when high speed rotating, the running accuracy that keeps main shaft improves the performance of main shaft.
In order to achieve the above object, technological scheme of the present invention is as follows:
A kind of accurate bidirectional angular contact thrust ball bearing, mainly form by bearing race, retainer, bearing spacer, steel ball and bearing blowout patche, retainer is that nylon material is made, steel ball is included in the retainer, retainer changes full subsumption architecture into by half subsumption architecture, is about to the bearing race guiding and changes into the steel ball guiding.
The invention has the beneficial effects as follows: the retainer that adopts nylon material, and the retainer of the outer guide structure of original bearing is designed to the retainer of rolling element guiding, reduce noise and temperature rise that bearing is produced when high speed rotating, keep the running accuracy of main shaft, the performance of main shaft is improved.
Description of drawings
Fig. 1 is the structural representation of existing bidirectional angular contact thrust ball bearing.
Fig. 2 is the structural representation of bidirectional angular contact thrust ball bearing of the present invention.
Among the figure: 1. bearing race, 2. nylon cages, 3. bearing spacer, 4. steel ball, 5. bearing blowout patche, 6. brass retainer.
Embodiment
The present invention will be further described below in conjunction with the drawings and specific embodiments:
As shown in Figure 2, a kind of accurate bidirectional angular contact thrust ball bearing of the present invention, mainly form by bearing race 1, nylon cages 2, bearing spacer 3, steel ball 4 and bearing blowout patche 5, steel ball 4 is included in the nylon cages 2, nylon cages 2 is full subsumption architecture, is about to bearing race 1 guiding and changes into steel ball 4 guiding.During assembling, steel ball 4 packed into forms an assembly in the nylon cages 2, according to the assemble sequence of bearing, bearing is assembled.During work, promptly bearing when rotated, the proportion of nylon material is low, rotary centrifugal force is little, surface friction drag significantly reduces, and can reduce noise and temperature rise that bearing is produced when high speed rotating, keeps the running accuracy of main shaft, improves the performance of main shaft.
Claims (2)
1, accurate bidirectional angular contact thrust ball bearing mainly is made up of bearing race (1), retainer (2), bearing spacer (3), steel ball (4) and bearing blowout patche (5), it is characterized in that steel ball (4) is included in the retainer (2).
2, accurate bidirectional angular contact thrust ball bearing as claimed in claim 1 is characterized in that, described retainer (2) is made by nylon material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100112533A CN101270774A (en) | 2008-04-30 | 2008-04-30 | Accurate bidirectional angular contact thrust ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100112533A CN101270774A (en) | 2008-04-30 | 2008-04-30 | Accurate bidirectional angular contact thrust ball bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101270774A true CN101270774A (en) | 2008-09-24 |
Family
ID=40004946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100112533A Pending CN101270774A (en) | 2008-04-30 | 2008-04-30 | Accurate bidirectional angular contact thrust ball bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101270774A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865208A (en) * | 2010-06-13 | 2010-10-20 | 哈尔滨轴承集团公司 | Spindle bearing of precision computer numerical control machine tool |
| CN103216524A (en) * | 2013-05-06 | 2013-07-24 | 无锡市第二轴承有限公司 | High-speed precise combined bearing |
| CN103697060A (en) * | 2013-12-12 | 2014-04-02 | 洛阳轴研科技股份有限公司 | High-speed bidirectional thrust angular contact bearing |
-
2008
- 2008-04-30 CN CNA2008100112533A patent/CN101270774A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865208A (en) * | 2010-06-13 | 2010-10-20 | 哈尔滨轴承集团公司 | Spindle bearing of precision computer numerical control machine tool |
| CN103216524A (en) * | 2013-05-06 | 2013-07-24 | 无锡市第二轴承有限公司 | High-speed precise combined bearing |
| CN103216524B (en) * | 2013-05-06 | 2016-06-29 | 无锡市第二轴承有限公司 | High speed and precision combination bearing |
| CN103697060A (en) * | 2013-12-12 | 2014-04-02 | 洛阳轴研科技股份有限公司 | High-speed bidirectional thrust angular contact bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20080924 |