CN202531641U - Double-row cylindrical roller bearing - Google Patents
Double-row cylindrical roller bearing Download PDFInfo
- Publication number
- CN202531641U CN202531641U CN2012201757547U CN201220175754U CN202531641U CN 202531641 U CN202531641 U CN 202531641U CN 2012201757547 U CN2012201757547 U CN 2012201757547U CN 201220175754 U CN201220175754 U CN 201220175754U CN 202531641 U CN202531641 U CN 202531641U
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- CN
- China
- Prior art keywords
- cylindrical roller
- outer ring
- roller bearing
- bearing
- row
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a double-row cylindrical roller bearing. The double-row cylindrical roller bearing comprises an inner ring, an outer ring and two rows of cylindrical rollers. The cylindrical rollers are all arranged between the inner ring and the outer ring through a retainer, Axis directions of the cylindrical rollers are the same as those of the inner ring and the outer ring, and ranges of radial clearance of the cylindrical rollers relative to the inner ring and the outer ring are both from 0.195 millimeter to 0.250 millimeter. The double-row cylindrical roller bearing has a better load ability compared with a single-row cylindrical roller bearing and can be used in different environment, and the problem that the bearing is deformed by high temperature and can not rotate flexibly is avoided. By means of precise process, the phenomenon that two ends of the cylindrical rollers are stressed intensively is reduced, service life of the bearing is further improved, a period of replacing the bearing is prolonged, and a considerable amount of fund is saved for a user.
Description
Technical field
The utility model relates to a kind of mechanical parts, particularly a kind of Biserial cylindrical roller bearing.
Background technique
In the prior art; Bearing is divided into tapered roller series bearing, cylindrical roller series bearing and ball series bearing; Cylindrical roller series bearing is divided into single row roller bearing, Biserial cylindrical roller bearing and four-line column roller bearing etc.; Every kind of bearing has different functions when on equipment, using; As axial load resistant, anti-radial load or anti-axially and connected load radially or sliding friction changed into rolling friction, according to the required type of bearing and the size of size selected of different working environments, wherein more extensive with the cylindrical roller series axis usefulness of promising again; When yet cylindrical roller series bearing uses on equipment; Because long meeting running time causes bearing heating; According to the principle of expanding with heat and contract with cold, when bearing causes temperature too high owing to running time is long, just possibly make cylindrical roller series bearing deform; And bearing is as precision element; When deforming, will make it dumb in rotation process, thereby the operation of equipment integral is caused bad influence, so just feasible necessary frequent replacing bearing; Also reduce very low the covert working life that makes cylindrical roller series bearing greatly, therefore just accounted for the sizable part during integral device is safeguarded in order to the expense of the replacing expenditure of equipment upper bearing (metal).
The model utility content
To the deficiency that exists in the existing technology, the purpose of the utility model is to provide a kind of Biserial cylindrical roller bearing that can significantly prolong the roller bearing life-span.
The technological scheme of the utility model is achieved in that
Biserial cylindrical roller bearing; Comprise inner ring, outer ring and two line column rollers; The said cylindrical roller of two row is installed between said inner ring and the said outer ring; All the axis direction with said inner ring and said outer ring is identical for the said cylindrical roller axis direction of two row, and the radial internal clearance scope of two row relative inner rings of said cylindrical roller and outer ring is 0.195mm-0.250mm.
Above-mentioned Biserial cylindrical roller bearing, said cylindrical roller two ends all have depression.
Above-mentioned Biserial cylindrical roller bearing, said outer ring has outer ring raceway, and said outer ring raceway is two.
Above-mentioned Biserial cylindrical roller bearing all has grinding undercut at said outer ring raceway and rib joint.
Above-mentioned Biserial cylindrical roller bearing has U type groove on the said outer ring outer wall, said U type groove is over against the space between two line column rollers.
Above-mentioned Biserial cylindrical roller bearing has oilhole at said U type bottom land.
Above-mentioned Biserial cylindrical roller bearing, the said cylindrical roller of every row (3) is at least 3.
Above-mentioned Biserial cylindrical roller bearing, the said cylindrical roller of every row is 25 altogether.
The beneficial effect of the utility model is: Biserial cylindrical roller bearing has than the better load-carrying ability of single row roller bearing; Can under different environment, use, thereby bearing can not cause the bearing rotation dumb because of too high the deforming of temperature, through the processing of precision; Reduced the phenomenon that cylindrical roller two ends stress is concentrated; Further improved the working life of bearing, prolonged the cycle of changing bearing, for the user has practiced thrift the appreciable fund of a stroke count order.
Description of drawings
Fig. 1 is the structural representation of the utility model Biserial cylindrical roller bearing,
Fig. 2 is the roller structure schematic representation of the utility model Biserial cylindrical roller bearing.
Among the figure: 1-inner ring, 2-outer ring, 3-cylindrical roller, 4-depression, 5-outer ring raceway, 6-rib, 7-grinding undercut, 8-U type groove, 9-oilhole.
Embodiment
In conjunction with accompanying drawing the utility model is done further explanation:
As shown in Figure 1; Biserial cylindrical roller bearing; Every row supply 25 cylindrical rollers, comprise inner ring 1, outer ring 2 and cylindrical roller 3, and said cylindrical roller 3 is installed in said inner ring raceway and the said outer ring raceway; The axis direction of said cylindrical roller 3 is identical with the axis direction of said inner ring 1 and said outer ring 2; The radial internal clearance scope of said cylindrical roller 3 relative inner rings 1 and outer ring 2 is 0.38mm-0.48mm, and two line column rollers are all closely arranged between bearing inner race and outer ring, so need not keep the axial and fixed-site of cylindrical roller with retainer; 0.38mm-0.48mm the radial internal clearance scope can fully guarantee bearing because the too high Shi Buhui of deforming of temperature influence the flexibility of bearing rotation; Make prolong greatly the working life of bearing, make the cycle of changing bearing become longer, practiced thrift the fund of considerable number for the user.
As shown in Figure 2; Said cylindrical roller two ends all have depression 4; The cylindrical roller that end face intermediate recess and edge are processed into level and smooth cambered surface can effectively overcome the two ends stress concentration phenomenon of common cylinder roller; Contact stress is evenly distributed vertically, and maximum contact stress can obviously reduce, and has improved the anti-contact fatigue ability of rolling bearing and has prolonged its working life.
Said outer ring has U type groove 8 and outer ring raceway 5; Said outer ring raceway 5 is two, all has grinding undercut 7 at said outer ring raceway 5 with rib 6 joints, and said U type groove 8 is arranged on 2 outer walls of said outer ring; Said U type groove 8 is over against the space between two line column rollers 3; Have oilhole 9 at 8 ends of said U type groove, U type groove 8 is for the ease of lubricating oil filling usefulness in bearing with oilhole 9, and having avoided need be with could be to its inner lubricating oil filling after the bearing removal.
The foregoing description only be for clearly explain the utility model create done for example, and be not the qualification of the utility model being created embodiment.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all mode of executions.Any conspicuous variation of being extended out within all spirit and principles at the utility model or change still are in the utility model and create among the protection domain of claim.
Claims (8)
1. Biserial cylindrical roller bearing; Comprise inner ring (1), outer ring (2); Also comprise two line column rollers (3), it is characterized in that the two said cylindrical rollers of row (3) are installed between said inner ring (1) and said outer ring (2); All the axis direction with said inner ring (1) and said outer ring (2) is identical for two row said cylindrical roller (3) axis directions, and the radial internal clearance scope of the relative inner ring (1) of the two said cylindrical rollers of row (3) and outer ring (2) is 0.195mm-0.250mm.
2. Biserial cylindrical roller bearing according to claim 1 is characterized in that, said cylindrical roller (3) two ends all have depression (4).
3. according to the arbitrary described Biserial cylindrical roller bearing of claim 1-2, it is characterized in that said outer ring (2) have outer ring raceway (5), said outer ring raceway (5) is two.
4. Biserial cylindrical roller bearing according to claim 3 is characterized in that, has grinding undercut (7) in said outer ring raceway (5) and rib (6) joint.
5. Biserial cylindrical roller bearing according to claim 4 is characterized in that, has U type groove (8) on the outer wall of said outer ring (2), and said U type groove (8) is over against the space between two line column rollers (3).
6. Biserial cylindrical roller bearing according to claim 5 is characterized in that, has oilhole (9) at said U type groove (8) end.
7. according to the arbitrary described Biserial cylindrical roller bearing of claim 4-6, it is characterized in that the said cylindrical roller of every row (3) is at least 3.
8. Biserial cylindrical roller bearing according to claim 7 is characterized in that, the said cylindrical roller of every row (3) is 25 altogether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201757547U CN202531641U (en) | 2012-04-24 | 2012-04-24 | Double-row cylindrical roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201757547U CN202531641U (en) | 2012-04-24 | 2012-04-24 | Double-row cylindrical roller bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202531641U true CN202531641U (en) | 2012-11-14 |
Family
ID=47132829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201757547U Expired - Fee Related CN202531641U (en) | 2012-04-24 | 2012-04-24 | Double-row cylindrical roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202531641U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791384A (en) * | 2014-01-17 | 2015-07-22 | 舍弗勒技术股份两合公司 | Joint bearing |
-
2012
- 2012-04-24 CN CN2012201757547U patent/CN202531641U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791384A (en) * | 2014-01-17 | 2015-07-22 | 舍弗勒技术股份两合公司 | Joint 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20160424 |