CN204239464U - Double-row self-aligning roller bearing - Google Patents
Double-row self-aligning roller bearing Download PDFInfo
- Publication number
- CN204239464U CN204239464U CN201420723773.8U CN201420723773U CN204239464U CN 204239464 U CN204239464 U CN 204239464U CN 201420723773 U CN201420723773 U CN 201420723773U CN 204239464 U CN204239464 U CN 204239464U
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- Prior art keywords
- roller
- raceway
- row
- bearing
- axial length
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- Expired - Fee Related
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- 230000004323 axial length Effects 0.000 claims abstract description 20
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to a kind of double-row self-aligning roller bearing, include bearing outer ring, bearing inner race, retainer and two row barrel shaped rollers, two row barrel shaped rollers are respectively the first roller and the second roller, the axial two ends of retainer are provided with the two row pocket holes for two row barrel shaped roller assemblings, two row pocket holes are respectively the first pocket hole and the second pocket hole, bearing inner race outer circle wall is provided with the interior raceway of two row of arranging vertically, in two row, raceway to be respectively in first raceway in raceway and second, bearing outer ring inner peripheral wall is provided with spherical raceway, in first, raceway axial length is greater than raceway axial length in described second, corresponding described first roller axial length is greater than described second roller axial length, on retainer, the first pocket hole axial length is greater than described second pocket hole length.The utility model compared with prior art, well can be applicable to radial load and axial one end thrust load large, and the operating mode occasion that the other end thrust load is little.
Description
Technical field
The utility model relates to technical field of bearings, is specifically selfaligning roller bearing, more precisely double-row self-aligning roller bearing.
Background technique
As shown in Fig. 1 and Fig. 2, existing double-row self-aligning roller bearing main structure is: comprise bearing outer ring 1' and bearing inner race 2', retainer 3' is equipped with between bearing inner race 2' and bearing outer ring 1', and the two row barrel shaped roller 4' be assemblied on retainer 3', bearing outer ring 1' inner peripheral wall is provided with spherical raceway 11', bearing inner race 2' outer circle wall is provided with two symmetrical interior raceway 21', two interior raceway 21' and retainer 3' are identical with barrel shaped roller 4', spherical raceway on two row barrel shaped roller 4' common shaft bearing outer-rings, two-way less thrust load and radial load can be born, bearing inner race and retainer can in radial plane globally raceway rotate, thus realize the aligning effect under axle bends situation, bear larger radial load simultaneously.But mainly there is following problem in this structure:
Due to the consistent symmetry properties of two interior raceways, the bidirectional load that can bear is less, radial load requirement and aligning requirement can only be met, be not suitable in particular cases needing to bear larger radial load, single axial load, and the operating mode occasion that other direction thrust load is less; In working under above-mentioned specific condition requires, single direction thrust load is large, and existing double-row self-aligning bearing roller there will be stuck and single interior raceway premature failure phenomenon.
Summary of the invention
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of applicable radial load and axial one end thrust load greatly, and the operating mode occasion use that the other end thrust load is little, the reliable double-row self-aligning roller bearing of slow-roll stabilization.
For achieving the above object, the utility model provides following technological scheme: a kind of double-row self-aligning roller bearing, include bearing outer ring and bearing inner race, retainer is provided with between bearing inner race and bearing outer ring, and the two row barrel shaped rollers be assemblied on retainer, two row barrel shaped rollers are respectively the first roller and the second roller, the axial two ends of described retainer are provided with the two row pocket holes for two row barrel shaped roller assemblings, two row pocket holes are respectively the first pocket hole for the first roller assembling, and for the second pocket hole that the second roller assembles, bearing inner race outer circle wall is provided with the interior raceway of two row of arranging vertically, two row in raceway be respectively with first of the first rollers co-operate in raceway, and with second of the second rollers co-operate in raceway, bearing outer ring inner peripheral wall is provided with spherical raceway, it is characterized in that: in described first, raceway axial length is greater than raceway axial length in described second, corresponding the first described roller axial length is greater than described second roller axial length, on retainer, the first pocket hole axial length is greater than described second pocket hole length.
By adopting technique scheme, in on bearing inner race two, raceway adopts the asymmetric design that one is long and the other is short, corresponding two row rollers are arranged to two in the length of raceway adaptation, short two row rollers, on retainer, pocket hole is longer on one side, realize the guiding function to long roller, when bearing unidirectional thrust load, larger thrust load can be born along having long raceway (being namely raceway in first) side, opposite side bears less thrust load, radial load bearing capacity remains unchanged, be applicable to axial one end thrust load large, and the operating mode occasion use that the other end thrust load is little, and remain the self-aligning function of existing selfaligning roller bearing.
The utility model is set to further: described first Roller Shaft is greater than the diameter of the first Roller Shaft to the other end to towards second roller one end diameter.
By adopting technique scheme, improve axial carrying capacity further, in profile size constancy situation, unidirectional thrust load increases about 60%, still has the ability of bearing another direction thrust load simultaneously.
The utility model is set to further: the work center line of the working pressure center line of described first raceway, the second raceway working pressure center line and bearing intersects at a point, and intersection point is positioned on bearing longitudinal center line.
By adopting technique scheme, this bearing aligning performance is good, not easily produces interior slip, and improve bearing performance, Bearing inner heating value is low.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is prior art double-row self-aligning roller bearing structural representation;
Fig. 2 is the bearing inner race structural representation of prior art double-row self-aligning roller bearing;
Fig. 3 is the utility model specific embodiment double-row self-aligning roller bearing structural representation.
Embodiment
See accompanying drawing 3, a kind of double-row self-aligning roller bearing disclosed in the utility model, include bearing outer ring 1 and bearing inner race 2, retainer 3 is provided with between bearing inner race 2 and bearing outer ring 1, and the two row barrel shaped rollers be assemblied on retainer 3, two row barrel shaped rollers are respectively the first roller 41 and the second roller 42, the described axial two ends of retainer 3 are provided with the two row pocket holes for two row barrel shaped roller assemblings, two row pocket holes are respectively the first pocket hole for the first roller assembling, and for the second pocket hole that the second roller assembles; Bearing inner race 2 outer circle wall is provided with the interior raceway of two row of arranging vertically, two row in raceway be respectively coordinate with the first roller 41 first in raceway 21, and raceway 22 in coordinate with the second roller 42 second, bearing outer ring 1 inner peripheral wall is provided with spherical raceway 11.In described first, raceway 21 axial length is greater than raceway 22 axial length in described second, and corresponding the first described roller 41 axial length is greater than described second roller 42 axial length, and on retainer 3, the first pocket hole axial length is greater than described second pocket hole length.In on bearing inner race two, raceway adopts the asymmetric design that one is long and the other is short, corresponding two row rollers are arranged to two in the long and short two row rollers of raceway adaptation, on retainer, pocket hole is longer on one side, realize the guiding function to long roller, when bearing unidirectional thrust load, larger thrust load can be born along having long raceway (being namely raceway in first) side, opposite side bears less thrust load, radial load bearing capacity remains unchanged, be applicable to axial one end thrust load large, and the operating mode occasion use that the other end thrust load is little; And remain the self-aligning function of existing selfaligning roller bearing.
For improving long roller further, i.e. axial carrying capacity on the direction of the first roller, described first roller 41 is axially greater than the diameter of the axial the other end 412 of the first roller 41 towards second roller 42 one end 411 diameter.First roller one end is large, the little design in one end, can better bear thrust load.
Wherein, working pressure center line 5, the second raceway working pressure center line 6 of described first raceway and the work center line 7 of bearing intersect at a point, and intersection point is positioned on bearing longitudinal center line 8.Wherein, the work center line 7 of bearing is the straight line of between the first raceway and the second raceway, vertical bearing longitudinal center line 8.Represent that this bearing aligning performance is good, otherwise produce interior slip, affect product performance, and produce heat.
Claims (3)
1. a double-row self-aligning roller bearing, include bearing outer ring and bearing inner race, retainer is provided with between bearing inner race and bearing outer ring, and the two row barrel shaped rollers be assemblied on retainer, two row barrel shaped rollers are respectively the first roller and the second roller, the axial two ends of described retainer are provided with the two row pocket holes for two row barrel shaped roller assemblings, two row pocket holes are respectively the first pocket hole for the first roller assembling, and for the second pocket hole that the second roller assembles, bearing inner race outer circle wall is provided with the interior raceway of two row of arranging vertically, two row in raceway be respectively with first of the first rollers co-operate in raceway, and with second of the second rollers co-operate in raceway, bearing outer ring inner peripheral wall is provided with spherical raceway, it is characterized in that: in described first, raceway axial length is greater than raceway axial length in described second, corresponding the first described roller axial length is greater than described second roller axial length, on retainer, the first pocket hole axial length is greater than described second pocket hole length.
2. double-row self-aligning roller bearing according to claim 1, is characterized in that: described first Roller Shaft is greater than the diameter of the first Roller Shaft to the other end to towards second roller one end diameter.
3. double-row self-aligning roller bearing according to claim 1 or 2, it is characterized in that: the work center line of the working pressure center line of described first raceway, the second raceway working pressure center line and bearing intersects at a point, and intersection point is positioned on bearing longitudinal center line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420723773.8U CN204239464U (en) | 2014-11-26 | 2014-11-26 | Double-row self-aligning roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420723773.8U CN204239464U (en) | 2014-11-26 | 2014-11-26 | Double-row self-aligning roller bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204239464U true CN204239464U (en) | 2015-04-01 |
Family
ID=52768964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420723773.8U Expired - Fee Related CN204239464U (en) | 2014-11-26 | 2014-11-26 | Double-row self-aligning roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204239464U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322911A (en) * | 2018-11-30 | 2019-02-12 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Wind-power electricity generation main shaft biserial abnormity self-aligning roller bearing |
-
2014
- 2014-11-26 CN CN201420723773.8U patent/CN204239464U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322911A (en) * | 2018-11-30 | 2019-02-12 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Wind-power electricity generation main shaft biserial abnormity self-aligning roller bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 16 No. 325000 Yong Jiang Road, hi tech Industrial Development Zone, Zhejiang, Wenzhou, China Patentee after: C&U Co.,Ltd. Address before: 16 No. 325000 Yong Jiang Road, hi tech Industrial Development Zone, Zhejiang, Wenzhou, China Patentee before: C & U Group Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 |