CN201396371Y - Full complement roller bearing with high-performance sealing structure - Google Patents
Full complement roller bearing with high-performance sealing structure Download PDFInfo
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- CN201396371Y CN201396371Y CN2009202234234U CN200920223423U CN201396371Y CN 201396371 Y CN201396371 Y CN 201396371Y CN 2009202234234 U CN2009202234234 U CN 2009202234234U CN 200920223423 U CN200920223423 U CN 200920223423U CN 201396371 Y CN201396371 Y CN 201396371Y
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- roller bearing
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Abstract
The utility model relates to a full complement roller bearing with high-performance sealing structure, which belongs to the technical field of bearing. The full complement roller bearing comprises anouter ring (1), an inner ring (2), a rolling body (3), a retaining ring (4), an oil blocking sealing element (5) and a sealing element (6); the cylindrical rolling body (3) is installed between the outer ring (1) and the inner ring (2), a retaining ring (4) is respectively arranged on the two sides of the end surface of the inner ring (2), the sealing element (6) is arranged in a groove corresponding to the outer ring (1) and the retaining ring (4), and the oil blocking sealing element (5) is arranged in a groove in the inside diameter of the outer ring (1) between the outer ring (1) and the retaining ring (4). Through the combined sealing structure and by arranging the full complement roller bearing, the problem of isolation between the working area of the bearing and the external environment, the bearing capacity of the bearing is enhanced, and the service life of the roller bearing is prolonged, thereby being favorable for the wide promotion in bearing production enterprises.
Description
Technical field
The utility model relates to a kind of roller bearing, relates in particular to a kind of full dress roller roller bearing that is applied to the high-performance sealing configuration on the oil plate bending rolls.
Background technique
Roller bearing is used in the oil plate bending rolls mechanically more, and under the condition of low speed, heavy duty, bad working environments, introduced contaminants enters the major reason that becomes damage of bearings in the bearing, and the bearing capacity of bearing structure designing institute decision is the focus that this class bearing is paid close attention to.At present, roller bearing all adopts two kinds of structure types: single-row or biserial steel ball roller structure, non-tight formula rolling element structure; First kind of structure because steel ball is when packing raceway into, needs certain ball angle of filling out, so the steel ball number of loading is limited; Fill out the ball hole if increase on the bearing ring, will cause bearing effectively to seal, this has just formed a pair of contradiction of bearing load carrying capacity and seal request; In addition, as rolling element, contacting between steel ball and raceway is the some contact with steel ball, is the poorest a kind of of bearing capacity in the rolling Contact Pair; Second kind of structure, owing to there is not the sealing configuration setting, when causing bearing working, introduced contaminants can not effectively be stopped; Although bearing load carrying capacity promotes to some extent than spherical structure, working life is still undesirable.
Summary of the invention
In order to overcome the deficiency in the background technique, the utility model discloses a kind of full dress roller roller bearing of high-performance sealing configuration, by the cylinder type rolling element is set, promoted the bearing capacity of roller bearing; Between outer ring, back-up ring, combined sealing structure is set in addition, efficiently solves the problem that the bearing working interval is isolated from the outside, improved the bearing working performance greatly, prolonged bearing life, saved user cost.
In order to realize the foregoing invention purpose, the utility model by the following technical solutions:
A kind of full dress roller roller bearing of high-performance sealing configuration comprises outer ring, inner ring, rolling element, back-up ring, retaining oil seal, Sealing; Rolling element is installed between outer ring, the inner ring; The outer ring external diameter is circular arc type, and internal diameter middle part in outer ring is a cylindrical raceway, and internal diameter both sides, outer ring are respectively equipped with the twice groove; Inner ring is and the annulus of width such as rolling element, respectively be provided with a back-up ring in inner ring end face both sides, and the back-up ring internal diameter is concordant with the inner ring internal diameter; Back-up ring and groove opposite position place, the outer ring internal diameter outside are provided with groove, and Sealing is arranged in outer ring, the back-up ring respective slot; The retaining oil seal is arranged between outer ring, back-up ring in the outer ring internal diameter inboard groove.
The full dress roller roller bearing of described high-performance sealing configuration, inner race width is set to plus tolerance.
The full dress roller roller bearing of described high-performance sealing configuration, rolling element is set to cylinder type.
The full dress roller roller bearing of described high-performance sealing configuration, radially there are the gap in retaining oil seal and back-up ring.
The full dress roller roller bearing of described high-performance sealing configuration, radially there are the gap in Sealing and outer ring.
After adopting technique scheme, the beneficial effect that the utlity model has is:
The full dress roller roller bearing of described high-performance sealing configuration,
1. because cylinder type rolling element and contacting of outer ring, inner ring are the line contact, the load-carrying properties the when point that its load-carrying properties are much better than steel ball structure contacts.
2. between outer ring, back-up ring combined sealing structure is set, forms a positive air pressure between Sealing and outer ring and effectively stoped external agency to enter in the bearing, the retaining oil seal between rolling element and the Sealing has effectively stoped the leakage of oiling agent.
3. the utility model has improved the bearing working performance greatly, has prolonged bearing life, has saved the bearing user cost.
[description of drawings]
Fig. 1 is an assembly structure schematic representation of the present utility model.
Fig. 2 is the utility model outer ring structure schematic representation.
Fig. 3 is the utility model inner ring structural representation.
Fig. 4 is the utility model retaining oil seal sectional view.
Fig. 5 is the utility model Sealing sectional view.
Among the figure: 1, outer ring; 2, inner ring; 3, rolling element; 4, back-up ring; 5, retaining oil seal; 6, Sealing.
[embodiment]
With reference to the following examples, can explain the utility model in more detail; But should be noted that the utility model is not limited to following embodiment.
The full dress roller roller bearing of the high-performance sealing configuration shown in Fig. 1,2,3,4,5 comprises outer ring 1, inner ring 2, rolling element 3, back-up ring 4, retaining oil seal 5, Sealing 6; Cylinder type rolling element 3 is installed between outer ring 1, the inner ring 2; Because rolling element 3 is the line contact with contacting of outer ring 1, inner ring 2, its load-carrying properties are much better than the some contact load-carrying properties of steel ball structure; The operating rate of roller bearing is lower in addition, and the relative velocity of rolling element 3 is little, therefore is designed to full dress roller, and promptly rolling element 3 does not need retainer completely to be loaded at interval between outer ring 1, the inner ring 2, has further promoted the bearing capacity of roller bearing; Outer ring 1 external diameter is circular arc type, and 1 internal diameter middle part in outer ring is a cylindrical raceway, and 1 internal diameter both sides, outer ring are respectively equipped with the twice groove; Inner ring 2 is the annulus with rolling element 3 width such as grade, and inner ring 2 width are set to plus tolerance, to guarantee that rolling element 3 normally rotates; Respectively be provided with a back-up ring 4 in inner ring 2 end face both sides, and back-up ring 4 is concordant with inner ring 2 internal diameters, back-up ring 4 has limited the axial displacement of cylinder type rolling element 3 and has located and fixed structure for the proper functioning of keeping off oil seal 5, Sealing 6 provides; Main load during bearing working is radial load, is born by rolling element 3 and raceway, inevitably can produce axial secondary load simultaneously, and this axial force is born by back-up ring 4, and can not have influence on Sealing; Back-up ring 4 is provided with groove with groove opposite position place, the outer ring 1 internal diameter outside; Sealing 6 is arranged in outer ring 1, back-up ring 4 respective slot; Retaining oil seal 5 is arranged in outer ring 1,4 outer rings of back-up ring, the 1 internal diameter inboard groove; When bearing dispatches from the factory, fill up oiling agent in advance in the operation interval that outer ring 1, back-up ring 4, Sealing 6 form,, improved the operating mode of operation interval, effectively prolonged the working life of bearing for bearing provides good lubricating condition; And when bearing working was living warm, the oiling agent that overflows can be kept in this chamber, has increased the storage space of oiling agent, had prolonged lubricated effective period, and then the life-span of improving bearing.
When bearing working, inner ring 2, back-up ring 4, and Sealing 6 rotate synchronously, retaining oil seal 5 is static with outer ring 1, retaining oil seal 5, Sealing 6 form the cavity of isolation between the operation interval of bearing and external environment condition; 1 of the lip of Sealing 6 and outer ring form a positive air pressure, and this positive air pressure has effectively stoped external agency, as metal cut, liquid such as hard dust based on carbon silicon, humid air, water enter the bearing working interval; Simultaneously, cavity between rolling element 3 and the Sealing 6 is kept off oil seal 5 and is divided into two-part, when the oiling agent of Heated Flow enhancing falls within on back-up ring 4 external diameters, under action of centrifugal force, oiling agent comes back to operation interval, has effectively stoped the leakage of oiling agent.
Combined sealing structure described in the utility model: radially there is the gap in retaining oil seal 5 with back-up ring 4, and radially there is the gap in Sealing 6 with outer ring 1; Promptly keep off oil seal 5, Sealing 6 all adopts noncontact seal, has avoided generating heat because of Sealing and miscellaneous part friction, and has not increased the flywheel moment of bearing because of sealing configuration, has guaranteed the revolution flexibility of bearing.
This model utility is innovated on structural design, by combined sealing structure and full-complement cylinder roller is set efficiently solves the problem that the bearing working interval is isolated from the outside, strengthened bearing load carrying capacity, prolonged the working life of roller bearing, helped wideling popularize in Production of bearing enterprise.
Claims (5)
1. the full dress roller roller bearing of a high-performance sealing configuration comprises outer ring (1), inner ring (2), rolling element (3), back-up ring (4), retaining oil seal (5), Sealing (6), and rolling element (3) is installed between outer ring (1), the inner ring (2); It is characterized in that: outer ring (1) external diameter is circular arc type, and internal diameter middle part in outer ring (1) is a cylindrical raceway, and internal diameter both sides, outer ring (1) are respectively equipped with the twice groove; Inner ring (2) is and the annulus of width such as rolling element, respectively be provided with a back-up ring (4) in inner ring (2) end face both sides, and back-up ring (4) internal diameter is concordant with inner ring (2) internal diameter; Back-up ring (4) is provided with groove with groove opposite position place, outer ring (1) the internal diameter outside, and Sealing (6) is arranged in outer ring (1), back-up ring (4) respective slot; Retaining oil seal (5) is arranged between outer ring (1), back-up ring (4) in the internal diameter inboard groove of outer ring (1).
2. the full dress roller roller bearing of high-performance sealing configuration according to claim 1 is characterized in that: inner ring (2) width is set to plus tolerance.
3. the full dress roller roller bearing of high-performance sealing configuration according to claim 1, it is characterized in that: rolling element (3) is set to cylinder type.
4. the full dress roller roller bearing of high-performance sealing configuration according to claim 1 is characterized in that: radially there is the gap in retaining oil seal (5) with back-up ring (4).
5. the full dress roller roller bearing of high-performance sealing configuration according to claim 1 is characterized in that: radially there is the gap in Sealing (6) with outer ring (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202234234U CN201396371Y (en) | 2009-09-03 | 2009-09-03 | Full complement roller bearing with high-performance sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202234234U CN201396371Y (en) | 2009-09-03 | 2009-09-03 | Full complement roller bearing with high-performance sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201396371Y true CN201396371Y (en) | 2010-02-03 |
Family
ID=41618880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202234234U Expired - Fee Related CN201396371Y (en) | 2009-09-03 | 2009-09-03 | Full complement roller bearing with high-performance sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201396371Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963189A (en) * | 2010-09-20 | 2011-02-02 | 瓦房店正达冶金轧机轴承有限公司 | Improved full complement cylindrical roller bearing |
| CN102494032A (en) * | 2011-12-24 | 2012-06-13 | 无锡沃尔德轴承有限公司 | Bearing for broad and thick board straightener |
| CN102606613A (en) * | 2012-03-27 | 2012-07-25 | 无锡市第二轴承有限公司 | High-speed oscillation bearing |
| CN102996802A (en) * | 2012-12-20 | 2013-03-27 | 江苏海建股份有限公司 | Oil sealing device for end face of rolling bearing |
| CN104246258A (en) * | 2012-04-23 | 2014-12-24 | 舍弗勒技术有限两合公司 | Roller bearing unit which can be inserted in the preassembled state |
| CN105276004A (en) * | 2015-11-19 | 2016-01-27 | 大连国威轴承股份有限公司 | Sealing double-row cylindrical roller bearing for straightener |
| CN111503161A (en) * | 2016-03-07 | 2020-08-07 | 日本精工株式会社 | Rolling bearing, bearing unit for air turbine, and dental air turbine handpiece |
| US11540902B2 (en) | 2016-03-07 | 2023-01-03 | Nsk Ltd. | Rolling bearing, bearing unit for air turbine, and air turbine handpiece for dental use |
| US11564772B2 (en) | 2016-03-07 | 2023-01-31 | Nsk Ltd. | Rolling bearing, bearing unit for air turbine, and air turbine handpiece for dental use |
-
2009
- 2009-09-03 CN CN2009202234234U patent/CN201396371Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963189A (en) * | 2010-09-20 | 2011-02-02 | 瓦房店正达冶金轧机轴承有限公司 | Improved full complement cylindrical roller bearing |
| CN102494032A (en) * | 2011-12-24 | 2012-06-13 | 无锡沃尔德轴承有限公司 | Bearing for broad and thick board straightener |
| CN102606613A (en) * | 2012-03-27 | 2012-07-25 | 无锡市第二轴承有限公司 | High-speed oscillation bearing |
| CN104246258A (en) * | 2012-04-23 | 2014-12-24 | 舍弗勒技术有限两合公司 | Roller bearing unit which can be inserted in the preassembled state |
| CN102996802A (en) * | 2012-12-20 | 2013-03-27 | 江苏海建股份有限公司 | Oil sealing device for end face of rolling bearing |
| CN105276004A (en) * | 2015-11-19 | 2016-01-27 | 大连国威轴承股份有限公司 | Sealing double-row cylindrical roller bearing for straightener |
| CN111503161A (en) * | 2016-03-07 | 2020-08-07 | 日本精工株式会社 | Rolling bearing, bearing unit for air turbine, and dental air turbine handpiece |
| CN111503161B (en) * | 2016-03-07 | 2022-06-21 | 日本精工株式会社 | Rolling bearing, bearing unit for air turbine, and dental air turbine handpiece |
| US11540902B2 (en) | 2016-03-07 | 2023-01-03 | Nsk Ltd. | Rolling bearing, bearing unit for air turbine, and air turbine handpiece for dental use |
| US11564772B2 (en) | 2016-03-07 | 2023-01-31 | Nsk Ltd. | Rolling bearing, bearing unit for air turbine, and air turbine handpiece for dental use |
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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: 20100203 Termination date: 20140903 |
|
| EXPY | Termination of patent right or utility model |