CN202628833U - Miniature bearing - Google Patents
Miniature bearing Download PDFInfo
- Publication number
- CN202628833U CN202628833U CN 201220235038 CN201220235038U CN202628833U CN 202628833 U CN202628833 U CN 202628833U CN 201220235038 CN201220235038 CN 201220235038 CN 201220235038 U CN201220235038 U CN 201220235038U CN 202628833 U CN202628833 U CN 202628833U
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- CN
- China
- Prior art keywords
- section
- cross
- roller
- inner ring
- bearing
- 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 miniature bearing which comprises an outer ring, an inner ring and a roller, wherein a rolling path is formed by the inner wall of the outer ring and the outer wall of the inner ring, the roller rolls in the rolling path, the inner cross section of the inner ring is a square or hexagon, the outer cross section of the inner ring is a round, and the inner cross section and the outer cross section of the outer ring are both rounds. The roller is in a shape of a ball or cylinder, and solid lubricating agents are coated on the surfaces of the roller and the rolling path. The inner cross section of the inner ring of the miniature bearing is a polygon, and correspondingly, the cross section of a shaft is a polygon. The meshing degree of the polygonal cross section is better than that of the round cross section, so that the inner ring of the bearing and the shaft can be meshed tightly, and the utilization rate of output power of a motor is improved.
Description
Technical field
The utility model relates to field of bearings, relates in particular to a kind of miniature bearing.
Background technique
Bearing is in mechanical transmission course, to work the parts of fixing and reducing the load friction factor.Also we can say, when other parts produce relative movement each other on axle, be used for reducing the fixing parts of friction factor and retainer shaft central position in the power transmission process.Bearing is a kind of very important component in the contemporary machinery.Its major function is the supported mechanical solid of rotation, in order to the mechanical load friction factor of reduction equipment in transmission process.Press the difference of motor element frictional property, bearing can be divided into two types on rolling bearing and sliding bearing.
Mostly present widely used bearing is rolling bearing, comprises ball bearing and roller bearing.Rolling bearing is exactly that the axle of running and the sliding friction between the axle bed are become rolling friction, thus the mechanical component of a kind of precision of the loss of reducing friction.
The size of bearing has multiple, and miniature bearing wherein is used for fields such as various micromachines, precision type instrument more, and miniature bearing requires high rotating speed, low noise usually, and the power of drive motor is not very big usually.The problem that miniature bearing often runs into is the interlock defective tightness between bearing inner race and the axle, certain skidding can occur, causes the waste of motor output power.
The model utility content
The utility model is intended to propose a kind of miniature bearing that improves the degree of engagement between bearing inner race and the axle.
Embodiment according to the utility model; Propose a kind of miniature bearing, comprise outer ring, inner ring and roller, the inwall of outer ring and the outer wall of inner ring form raceway; Roller rolls in raceway; The interior cross section of inner ring is a polygonal, and the outer cross section of inner ring is circular, and the interior cross section of outer ring is circle with outer cross section.
The interior cross section of inner ring is square or Hexagon.
Roller is spherical roller or cylindrical roller.
The surfaces coated of roller and raceway is covered with solid lubricant.Solid lubricant can be a molybdenum disulfide.
The interior cross section of the inner ring of the miniature bearing of the utility model is polygonal; Accordingly, the cross section of axle also is corresponding polygonal, and polygonal cross section degree of engagement is than circular better; Make and a bearing inner race and a more closely interlock of axle help improving the utilization rate of motor output power.
Description of drawings
Fig. 1 has disclosed the sectional view according to an embodiment's of the utility model miniature bearing.
Embodiment
With reference to shown in Figure 1, the utility model has disclosed a kind of miniature bearing that improves the degree of engagement between bearing inner race and the axle.This miniature bearing 100 comprises outer ring 102, inner ring 104 and roller 106.The outer wall of the inwall of outer ring 102 and inner ring 104 forms raceway, and roller 106 rolls in raceway.As shown in Figure 1, the interior cross section of inner ring 102 is a polygonal, can be square or Hexagon such as cross section in this, and among the embodiment shown in Figure 1, cross section is a square in this.The outer cross section of inner ring 104 is circular, and the interior cross section of outer ring 102 is circle with outer cross section.Roller 106 can be spherical roller or cylindrical roller.
In order further to reduce the friction between roller and the raceway, the surfaces coated of roller and raceway is covered with solid lubricant.Solid lubricant can be a molybdenum disulfide.
The interior cross section of the inner ring of the miniature bearing of the utility model is polygonal; Accordingly, the cross section of axle also is corresponding polygonal, and polygonal cross section degree of engagement is than circular better; Make and a bearing inner race and a more closely interlock of axle help improving the utilization rate of motor output power.
Claims (5)
1. miniature bearing; It is characterized in that, comprise outer ring, inner ring and roller, the inwall of said outer ring and the outer wall of inner ring form raceway; Said roller rolls in raceway; The interior cross section of said inner ring is a polygonal, and the outer cross section of inner ring is circular, and the interior cross section of said outer ring is circle with outer cross section.
2. miniature bearing as claimed in claim 1 is characterized in that, the interior cross section of said inner ring is square or Hexagon.
3. miniature bearing as claimed in claim 1 is characterized in that, said roller is spherical roller or cylindrical roller.
4. miniature bearing as claimed in claim 1 is characterized in that the surfaces coated of said roller and raceway is covered with solid lubricant.
5. miniature bearing as claimed in claim 4 is characterized in that said solid lubricant is a molybdenum disulfide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220235038 CN202628833U (en) | 2012-05-21 | 2012-05-21 | Miniature bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220235038 CN202628833U (en) | 2012-05-21 | 2012-05-21 | Miniature bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202628833U true CN202628833U (en) | 2012-12-26 |
Family
ID=47382038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220235038 Expired - Fee Related CN202628833U (en) | 2012-05-21 | 2012-05-21 | Miniature bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202628833U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742541A (en) * | 2014-01-02 | 2014-04-23 | 洛阳轴研科技股份有限公司 | Bearing design method and bearing structure for preventing outer ring from slipping |
| CN103742540A (en) * | 2014-01-02 | 2014-04-23 | 洛阳轴研科技股份有限公司 | Design method and structure for preventing bearing inner ring from slipping |
-
2012
- 2012-05-21 CN CN 201220235038 patent/CN202628833U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742541A (en) * | 2014-01-02 | 2014-04-23 | 洛阳轴研科技股份有限公司 | Bearing design method and bearing structure for preventing outer ring from slipping |
| CN103742540A (en) * | 2014-01-02 | 2014-04-23 | 洛阳轴研科技股份有限公司 | Design method and structure for preventing bearing inner ring from slipping |
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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: 20121226 Termination date: 20200521 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |