CN201615139U - Large-scale silicon nitride ceramic ball bearing - Google Patents
Large-scale silicon nitride ceramic ball bearing Download PDFInfo
- Publication number
- CN201615139U CN201615139U CN2010201003875U CN201020100387U CN201615139U CN 201615139 U CN201615139 U CN 201615139U CN 2010201003875 U CN2010201003875 U CN 2010201003875U CN 201020100387 U CN201020100387 U CN 201020100387U CN 201615139 U CN201615139 U CN 201615139U
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- CN
- China
- Prior art keywords
- silicon nitride
- ball bearing
- nitride ceramic
- raceway
- ceramic ball
- 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 discloses a large-scale silicon nitride ceramic ball bearing, and aims to solve the problems of a traditional steel ball bearing that the rolling density is large, the elastic deformation is large when force is exerted on the ball bearing, the relative-load rigidity is low, the thermal expansion coefficient is large, the friction coefficient is large, and the heat quantity produced during use is rather large, etc. The silicon nitride ceramic ball bearing adopting a silicon nitride ceramic ball to replace a traditional steel ball has the advantages of small density, small elastic deformation when force is exerted thereon, high relative-load rigidity, small thermal expansion coefficient, small friction coefficient, small heat quantity produced during use, and self-lubrication; and raceway films are attached to an inner raceway and an outer raceway of the bearing by adopting an electromagnetic vacuum sputtering process, thereby prolonging the service life in the environments with low temperature, thick dust in air, high air corrosion and the like.
Description
Technical field
The utility model relates to a kind of bearing, and more particularly, the utility model relates to a kind of large-scale silicon nitride ceramic ball bearing.
Background technique
At present in the turntable bearing on harbour machinery, engineering mechanical device and the wind-driven generator with the rolling element of steel ball as bearing, its density is bigger, stressed back resiliently deformable is big, the rigidity of load is lower relatively, thermal expansion coefficient, friction factor are big, can produce the bigger heat of heat during work, need oiling agent lubricated.Dust situation big, that air corrosion is stronger can reduce following working life greatly in low temperature, air in addition.
The model utility content
The utility model is intended to overcome above-mentioned defective, provides a kind of its rolling element density less, and stressed back distortion is little, the rigidity height of load relatively, and thermal expansion coefficient, friction factor are little, produce less and the large-scale silicon nitride ceramic ball bearing that can selflubricating of heat during work.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of large-scale silicon nitride ceramic ball bearing comprises outer ring, inner ring, rolling ball, it is characterized in that: described rolling ball is a silicon nitride ceramic ball, closely is arranged in the raceway between outer ring and the inner ring, and described raceway film is attached on the raceway.
Utilize the ELECTROMAGNETIC VACUUM sputtering technology on the described inside and outside circle raceway, on raceway, produce high strength raceway film; Described raceway film thickness is 0.5-2 μ m.
The useful technique effect that the utility model brings:
1, adopt silicon nitride ceramic ball to replace traditional steel ball, density is less, and the elasticity sex change of stressed back is little, the rigidity height of load relatively, and thermal expansion coefficient, friction factor are little, produce less and the turntable bearing that can selflubricating of heat during work.
2, the inside and outside circle raceway of bearing adopts the ELECTROMAGNETIC VACUUM sputtering technology, produces the high strength raceway film of 0.5-2 μ m on raceway, and its life-span is extended greatly than traditional same specification bearing.
Description of drawings
Accompanying drawing is the structural representation of silicon nitride ceramic ball bearing.
Reference character: 1 is the outer ring, and 2 is inner ring, and 3 is rolling ball, and 4 is the raceway film.
Embodiment
Below in conjunction with accompanying drawing specific embodiment of the utility model is illustrated:
Accompanying drawing is the sectional view of large-scale silicon nitride ceramic ball bearing.Comprise outer ring 1, inner ring 2, rolling ball 3 and raceway film 4.Rolling ball 3 closely is arranged in the raceway that forms between outer ring 1 and the inner ring 2, adopts the ELECTROMAGNETIC VACUUM sputtering technology to produce the raceway film 4 of 1.5 μ m on the raceway wall.Described rolling ball 3 is the silicon nitride ceramics material.
Claims (2)
1. large-scale silicon nitride ceramic ball bearing, comprise outer ring (1), inner ring (2), rolling ball (3), it is characterized in that: described rolling ball (3) is a silicon nitride ceramic ball, closely is arranged in the raceway between outer ring (1) and the inner ring (2), is attached with raceway film (4) on raceway.
2. a kind of large-scale silicon nitride ceramic ball bearing according to claim 1 is characterized in that: raceway film (4) thickness on the raceway between described outer ring (1), the inner ring (2) is 0.5-2 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201003875U CN201615139U (en) | 2010-01-22 | 2010-01-22 | Large-scale silicon nitride ceramic ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201003875U CN201615139U (en) | 2010-01-22 | 2010-01-22 | Large-scale silicon nitride ceramic ball bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201615139U true CN201615139U (en) | 2010-10-27 |
Family
ID=43001508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201003875U Expired - Fee Related CN201615139U (en) | 2010-01-22 | 2010-01-22 | Large-scale silicon nitride ceramic ball bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201615139U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975226A (en) * | 2010-11-11 | 2011-02-16 | 洛阳轴研科技股份有限公司 | Self-lubricating rolling bearing |
| CN108443317A (en) * | 2018-05-10 | 2018-08-24 | 海宁科巍轴承科技有限公司 | A kind of hybrid ceramic cylinder roller bearing ring |
-
2010
- 2010-01-22 CN CN2010201003875U patent/CN201615139U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975226A (en) * | 2010-11-11 | 2011-02-16 | 洛阳轴研科技股份有限公司 | Self-lubricating rolling bearing |
| CN108443317A (en) * | 2018-05-10 | 2018-08-24 | 海宁科巍轴承科技有限公司 | A kind of hybrid ceramic cylinder roller bearing ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DEYANG DYTECH MACHINE TOOL CO., LTD. Free format text: FORMER OWNER: DEYANG DYTECH MACHINERY CO., LTD. Effective date: 20110310 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110310 Address after: 618000 No. three, section 18, Shannan Road, Deyang, Sichuan, Longquan Patentee after: Deyang Ditai Machine Co. Ltd Address before: 618000 No. three, section 18, Shannan Road, Deyang, Sichuan, Longquan Patentee before: Deyang Dytech Machinery Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101027 Termination date: 20130122 |