CN201359017Y - Retainer for single-row roller bearing of rolling mill - Google Patents
Retainer for single-row roller bearing of rolling mill Download PDFInfo
- Publication number
- CN201359017Y CN201359017Y CNU2008202321581U CN200820232158U CN201359017Y CN 201359017 Y CN201359017 Y CN 201359017Y CN U2008202321581 U CNU2008202321581 U CN U2008202321581U CN 200820232158 U CN200820232158 U CN 200820232158U CN 201359017 Y CN201359017 Y CN 201359017Y
- Authority
- CN
- China
- Prior art keywords
- retainer
- bearing
- roller bearing
- sides
- row roller
- 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 retainer for a single-row roller bearing of a rolling mill. The retainer is in a circular ring shape; round angles are formed at both sides of the outside diameter of the retainer; the middle part of the retainer is provided with a circular arc groove; circular angles are formed at both sides of an inner hole of the retainer; the middle part of the inner hole of the retainer is provided with a trapezoid-shaped groove; and circular column holes which point to the circle center and are used for accommodating ball rollers are uniformly distributed on the retainer. The retainer is mainly applied to industries, such as rolling mills, electromechanics, metallurgy and the like; and the retainer has the characteristics of lubrication improvement, flexible revolution and great prolonged service life of bearing.
Description
Technical field
The present invention relates to a kind of retainer that is used for the single-row roller bearing of milling train, more particularly relate to a kind of single-row roller bearing field that is used for milling train.
Background technique
The single-row ball roller bearing structure of milling train is made up of outer ring, inner ring, roller and retainer, single-row roller bearing uses on the milling train of each steel rolling mill, bearing working in impact, high temperature, at a high speed, heavy duty, insufficient lubrication, high pressure water wash away etc. under the bad working environments condition.Retainer plays guiding and isolates the effect of roller, bearing roller in the running rolls on the raceway of Internal and external cycle, the running of roller driving bearing retainer is again rotated, thereby cause roller and retainer to produce friction, when the bearing rotating speed is higher, can produce bigger friction owing to action of centrifugal force, thereby reduce the transmission efficiency and the life-span of bearing, the bearing capacity difference of ball bearing is its outstanding shortcoming.
Summary of the invention
The present invention provides a kind of retainer of milling train single-row ball-bearing for solving on the above technical problem, has solved problems such as bearing capacity difference.
A kind of retainer that is used for the single-row roller bearing of milling train of the present invention is characterized in that: described retainer is a toroidal; The equal rounding in the both sides of retainer external diameter, there is an arc groove at the middle part of retainer external diameter; The equal rounding in the both sides of retainer endoporus, there is a dovetail groove at the middle part of retainer endoporus; Be uniform-distribution with the cylindrical hole that is used to hold the ball roller that points to the center of circle on the retainer.
A kind of single-row roller bearing that is used for milling train involved in the present invention comprises outer ring, inner ring, roller and retainer; The branch body structure that the outer ring divides ring to form by two outer rings; The outer ring of outer ring divides ring to be ring, and the ring external diameter fillet of leaning now to one side, then to the other is divided in the outer ring, and the fillet that ring external diameter outside is divided in the outer ring is greater than dividing the fillet of ring connection with another outer ring; One roller raceway, the both sides chamfering of the endoporus of outer ring are arranged in the middle of the endoporus of outer ring; Inner ring is a toroidal; One roller raceway, inner ring external diameter both sides chamfering are arranged in the middle of the inner ring external diameter; Inner ring endoporus both sides chamfering.Described retainer is a toroidal; There is an arc groove at retainer external diameter middle part; There is a dovetail groove at retainer endoporus middle part; Be uniform-distribution with the circular hole that is used to hold the ball roller that points to the center of circle on the retainer.
The present invention compared with prior art has the following advantages: significantly reduced friction, thereby improved bearing life greatly.
Description of drawings
Fig. 1 is the semi-section structural drawing of retainer of the present invention;
Fig. 2 is the complete section face structural drawing of retainer of the present invention;
Fig. 3 is the sectional structure chart of bearing involved in the present invention.
Embodiment
The present invention is by Fig. 1, Fig. 2 and Fig. 3 as can be known: a kind of single-row roller bearing that is used for milling train comprises outer ring 1, inner ring 2, roller 3 and retainer 4; Described retainer 4 is a toroidal, and retainer 4 is a toroidal; There is an arc groove at retainer 4 external diameters middle part; There is a dovetail groove at retainer 4 endoporus middle part; Be uniform-distribution with the circular hole that is used to hold the ball roller that points to the center of circle on the retainer 4.
A kind of preferred embodiment: the milling train single-row roller bearing that with the nominal outside diameter is 310mm is an example: the width of outer ring is 60mm; The degree of depth of dovetail groove is 2.3mm, and the width of dovetail groove is 20mm; The width of arc groove is 30mm, and the radius of arc of arc groove is 60mm; The number of ball roller holes is 12, and the diameter of ball roller holes is 27.2mm.
The above; only be the preferable embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to technological scheme of the present invention and inventive concept thereof, all should be encompassed within protection scope of the present invention.
Claims (1)
1, a kind of retainer that is used for the single-row roller bearing of milling train is characterized in that: described retainer is a toroidal; The equal rounding in the both sides of retainer external diameter, there is an arc groove at the middle part of retainer external diameter; The equal rounding in the both sides of retainer endoporus, there is a dovetail groove at the middle part of retainer endoporus; Be uniform-distribution with the cylindrical hole that is used to hold the ball roller that points to the center of circle on the retainer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202321581U CN201359017Y (en) | 2008-12-26 | 2008-12-26 | Retainer for single-row roller bearing of rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202321581U CN201359017Y (en) | 2008-12-26 | 2008-12-26 | Retainer for single-row roller bearing of rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201359017Y true CN201359017Y (en) | 2009-12-09 |
Family
ID=41424780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202321581U Expired - Fee Related CN201359017Y (en) | 2008-12-26 | 2008-12-26 | Retainer for single-row roller bearing of rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201359017Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321641A (en) * | 2015-11-03 | 2017-01-11 | 无锡市三立轴承有限公司 | Retainer of bearing |
-
2008
- 2008-12-26 CN CNU2008202321581U patent/CN201359017Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321641A (en) * | 2015-11-03 | 2017-01-11 | 无锡市三立轴承有限公司 | Retainer of bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091209 Termination date: 20101226 |