CN203308934U - Outer ring of high-speed precision combination bearing - Google Patents
Outer ring of high-speed precision combination bearing Download PDFInfo
- Publication number
- CN203308934U CN203308934U CN2013202407776U CN201320240777U CN203308934U CN 203308934 U CN203308934 U CN 203308934U CN 2013202407776 U CN2013202407776 U CN 2013202407776U CN 201320240777 U CN201320240777 U CN 201320240777U CN 203308934 U CN203308934 U CN 203308934U
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- outer ring
- cylndrical surface
- ring body
- section
- inner circle
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Abstract
The utility model relates to an outer ring of a high-speed precision combination bearing. A middle cylindrical surface is arranged in the middle of an inner circle of an outer ring body; a left cylindrical surface is arranged on the left of the inner circle of the outer ring body; a right cylindrical surface is arranged on the right of the inner circle of the outer ring body; the diameter of the left cylindrical surface is greater than that of the middle cylindrical surface; the diameter of the right cylindrical surface is greater than that of the middle cylindrical surface; the right end of the left cylindrical surface is connected with the left end of the middle cylindrical surface through a left roller path; the right end of the middle cylindrical surface is connected with the left end of the right cylindrical surface through a right roller path; a first sealing groove is formed in the inner circle of the outer ring body on the left side of the left cylindrical surface; a second sealing groove is formed in the inner circle of the outer ring body on the right side of the right cylindrical surface; the left roller path and the right roller path are circular arcs in the axial section of the outer ring body. The outer ring of the high-speed precision combination bearing has the advantages of simple structure, convenience in manufacturing and the like.
Description
Technical field
The utility model relates to a kind of bearing part, especially a kind of outer ring of high speed and precision combination bearing.
Background technique
At present, high-speed bearing the time is all generally that the mode combined is used in application, and the mode of its combination is generally two bearings and is used in combination by back-to-back mode (DB) or aspectant mode (DF) or a suitable mode (DT).Back-to-back combination (DB) can be born the axial load of radial load and both direction, because point of action distance is larger, to have the moment load to make used time rigidity very high.Current back-to-back mode combines (DB) and is most widely used in the precision optical machinery industry.Due to the product that is high-speed, high precision, very high to the bearing requirement of two cover combinations, the bearing outside diameter size that requires two covers to combine, the play of interior hole dimension can not surpass 1/3 of tolerance.Because only 4um is to 5um for the product tolerance of P4 level, then will to compress tolerance be exactly that to require two lassos are identical sizes basically.Technique is difficult to assurance, and the while user is due to the difference of assembly technology in installation process, and two cover bearings assemble simultaneously also and can produce the assembling defect.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of outer ring of simple in structure, easily manufactured high speed and precision combination bearing is provided.
The technological scheme provided according to the utility model, the outer ring of described high speed and precision combination bearing, comprise outer ring body, inner circle stage casing at outer ring body is provided with the cylndrical surface, stage casing, left section of the inner circle of outer ring body, be provided with left section cylndrical surface, right section of the inner circle of outer ring body, be provided with right section cylndrical surface, the diameter of left section cylndrical surface is greater than the diameter of cylndrical surface, stage casing, the diameter of right section cylndrical surface is greater than the diameter of cylndrical surface, stage casing, the right part of left section cylndrical surface is connected by rolling left with the left part of cylndrical surface, stage casing, the left part of the Yu Youduan cylndrical surface, right part of cylndrical surface, stage casing is connected by right raceway, the inner circle of the outer ring body on the left of left section cylndrical surface is provided with the first seal groove, inner circle at the outer ring body on right side, right section cylndrical surface is provided with the second seal groove, in the axial cross section of outer ring body, described rolling left is one section circular arc with right raceway.
The equal diameters of Yu Youduan cylndrical surface, described left section cylndrical surface.
Circle radius is greater than circle radius in the outer ring body of position, left section cylndrical surface in the outer ring body of the first seal groove notch position.
Circle radius is greater than circle radius in the outer ring body of position, right section cylndrical surface in the outer ring body of the second seal groove notch position.
Near in the rolling left of left section cylndrical surface position, circumferentially offering the left side oil storage tank along it.
In the right raceway near position, right section cylndrical surface, circumferentially offer the right side oil storage tank along it.
The utlity model has the advantages such as simple in structure, easily manufactured.
The accompanying drawing explanation
Fig. 1 is the utility model embodiment 1 structural representation.
Fig. 2 is the utility model embodiment 2 structural representation.
Embodiment
The utility model is described in further detail below in conjunction with specific embodiment.
Embodiment 1
The outer ring of this high speed and precision combination bearing, comprise outer ring body 1, inner circle stage casing at outer ring body 1 is provided with cylndrical surface, stage casing 1.1, left section of the inner circle of outer ring body 1, be provided with left section cylndrical surface 1.2, right section of the inner circle of outer ring body 1, be provided with right section cylndrical surface 1.3, the diameter of left section cylndrical surface 1.2 is greater than the diameter of cylndrical surface, stage casing 1.1, the diameter of right section cylndrical surface 1.3 is greater than the diameter of cylndrical surface, stage casing 1.1, 1.2De right part, left section cylndrical surface and 1.1De left part, cylndrical surface, stage casing 1.4 are connected by rolling left, 1.3De left part, Yu Youduan cylndrical surface, 1.1De right part, cylndrical surface, stage casing is connected by right raceway 1.5, inner circle at the outer ring body 1 in 1.2 left sides, left section cylndrical surface is provided with the first seal groove 1.7, inner circle at the outer ring body 1 on 1.3 right sides, right section cylndrical surface is provided with the second seal groove 1.8, in the axial cross section of outer ring body 1, described roll left 1.4 with right raceway 1.5 be one section circular arc.
Embodiment 2
The outer ring of this high speed and precision combination bearing, comprise outer ring body 1, inner circle stage casing at outer ring body 1 is provided with cylndrical surface, stage casing 1.1, left section of the inner circle of outer ring body 1, be provided with left section cylndrical surface 1.2, right section of the inner circle of outer ring body 1, be provided with right section cylndrical surface 1.3, the diameter of left section cylndrical surface 1.2 is greater than the diameter of cylndrical surface, stage casing 1.1, the diameter of right section cylndrical surface 1.3 is greater than the diameter of cylndrical surface, stage casing 1.1, 1.2De right part, left section cylndrical surface and 1.1De left part, cylndrical surface, stage casing 1.4 are connected by rolling left, 1.3De left part, Yu Youduan cylndrical surface, 1.1De right part, cylndrical surface, stage casing is connected by right raceway 1.5, inner circle at the outer ring body 1 in 1.2 left sides, left section cylndrical surface is provided with the first seal groove 1.7, inner circle at the outer ring body 1 on 1.3 right sides, right section cylndrical surface is provided with the second seal groove 1.8, in the axial cross section of outer ring body 1, described roll left 1.4 with right raceway 1.5 be one section circular arc.
Oil storage tank 1.9 on the left of circumferentially offering along it near rolling left in 1.4 of left section cylndrical surface 1.2 positions.In the right raceway 1.5 near 1.3 positions, right section cylndrical surface, circumferentially offer right side oil storage tank 1.10 along it.
And embodiment 1 and embodiment 2 meet: the equal diameters of described left section cylndrical surface 1.2 and right section cylndrical surface 1.3.At the interior circle radius of outer ring body 1 of the first seal groove 1.7 notch positions, be greater than the interior circle radius of outer ring body 1 of 1.2 positions, left section cylndrical surface.At the interior circle radius of outer ring body 1 of the second seal groove 1.8 notch positions, be greater than the interior circle radius of outer ring body 1 of 1.3 positions, right section cylndrical surface.
During use, coordinate two bearing inner races, two retainers, two groups of balls and two dust seal covers, can be combined to form a high speed and precision combination bearing, wherein, left side oil storage tank 1.9 and right side oil storage tank 1.10 are be used to storing lubricant grease, offer rolling element, can improve like this lubrication effect of bearing, improve the working life of bearing.
Claims (6)
1. the outer ring of a high speed and precision combination bearing, comprise outer ring body (1), it is characterized in that: be provided with cylndrical surface, stage casing (1.1) in the inner circle stage casing of outer ring body (1), left section of the inner circle of outer ring body (1), be provided with left section cylndrical surface (1.2), right section of the inner circle of outer ring body (1), be provided with right section cylndrical surface (1.3), the diameter of left section cylndrical surface (1.2) is greater than the diameter of cylndrical surface, stage casing (1.1), the diameter of right section cylndrical surface (1.3) is greater than the diameter of cylndrical surface, stage casing (1.1), the right part of left section cylndrical surface (1.2) is connected by roll left (1.4) with the left part of cylndrical surface, stage casing (1.1), the left part of the Yu Youduan cylndrical surface, right part (1.3) of cylndrical surface, stage casing (1.1) is connected by right raceway (1.5), the inner circle of the outer ring body (1) on the left of left section cylndrical surface (1.2) is provided with the first seal groove (1.7), inner circle at the outer ring body (1) on right side, right section cylndrical surface (1.3) is provided with the second seal groove (1.8), in the axial cross section of outer ring body (1), described rolling left (1.4) is one section circular arc with right raceway (1.5).
2. the outer ring of high speed and precision combination bearing as claimed in claim 1, is characterized in that: the equal diameters of described left section cylndrical surface (1.2) and right section cylndrical surface (1.3).
3. the outer ring of high speed and precision combination bearing as claimed in claim 1 is characterized in that: circle radius is greater than circle radius in the outer ring body (1) of position, left section cylndrical surface (1.2) in the outer ring body (1) of the first seal groove (1.7) notch position.
4. the outer ring of high speed and precision combination bearing as claimed in claim 1 is characterized in that: circle radius is greater than circle radius in the outer ring body (1) of position, right section cylndrical surface (1.3) in the outer ring body (1) of the second seal groove (1.8) notch position.
5. the outer ring of high speed and precision combination bearing as claimed in claim 1, is characterized in that: along it, circumferentially offer left side oil storage tank (1.9) in roll left (1.4) near position, left section cylndrical surface (1.2).
6. the outer ring of high speed and precision combination bearing as claimed in claim 1, is characterized in that: along it, circumferentially offer right side oil storage tank (1.10) in the right raceway (1.5) near position, right section cylndrical surface (1.3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202407776U CN203308934U (en) | 2013-05-06 | 2013-05-06 | Outer ring of high-speed precision combination bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202407776U CN203308934U (en) | 2013-05-06 | 2013-05-06 | Outer ring of high-speed precision combination bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203308934U true CN203308934U (en) | 2013-11-27 |
Family
ID=49615147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202407776U Expired - Fee Related CN203308934U (en) | 2013-05-06 | 2013-05-06 | Outer ring of high-speed precision combination bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203308934U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206459A (en) * | 2013-05-06 | 2013-07-17 | 无锡市第二轴承有限公司 | Outer ring of high-speed precision combination bearing |
-
2013
- 2013-05-06 CN CN2013202407776U patent/CN203308934U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206459A (en) * | 2013-05-06 | 2013-07-17 | 无锡市第二轴承有限公司 | Outer ring of high-speed precision combination bearing |
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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: 20131127 Termination date: 20200506 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |