CN204312549U - A kind of heavily loaded hub bearing - Google Patents
A kind of heavily loaded hub bearing Download PDFInfo
- Publication number
- CN204312549U CN204312549U CN201420787603.6U CN201420787603U CN204312549U CN 204312549 U CN204312549 U CN 204312549U CN 201420787603 U CN201420787603 U CN 201420787603U CN 204312549 U CN204312549 U CN 204312549U
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- CN
- China
- Prior art keywords
- bearing
- row
- retainer
- roller
- bearing bore
- 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
Links
- 238000007789 sealing Methods 0.000 claims description 6
- 230000000295 complement effect Effects 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 3
- 206010016256 fatigue Diseases 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Abstract
The utility model relates to a kind of heavily loaded hub bearing, comprise bearing inner race and bearing outer ring, a bearing bore is formed between the outer side wall of described bearing inner race and the madial wall of bearing outer ring, retainer is provided with in described bearing bore, described retainer is provided with three row rollers, three row and three row rollers roller guide raceway is one to one provided with in bearing bore, described retainer comprises point retainer that two are distributed in bearing bore both sides, two points of retainers lay respectively in two row roller guide raceways of bearing bore both sides, two row in described three row rollers are distributed in point retainer respectively, described point retainer extends towards another point of retainer respectively, clamping part in the middle of being formed, middle retaining part is in a middle row roller guide raceway, remaining a row roller is arranged in middle clamping part, the row roller being positioned at described middle blessing portion is cylindrical roller, and the cylindrical roller of centre adopts full complement.The utility model has the strong advantage of radial capacity.
Description
Technical field
The utility model relates to technical field of bearings, is specifically related to heavily loaded hub bearing.
Background technique
Hub bearing is applied to Automobile shaft place to be used for load-bearing and provide the component accurately guided for the rotation of wheel hub, and not only bearing thrust load but also bear radial load, is the important component part of carload and rotation.
As shown in Fig. 1, existing hub bearing is combined by double-row angular contact bal bearing, has the function can bearing radial direction and tilting moment load; For the hub bearing Problems existing of above-mentioned two row steel balls, people from Wenzhou this automobile bearing limited company of this group, be disclose in the patent documentation of 201220723762.0 " a kind of three row roller four point contact type hub bearings " at application number, between two row steel balls, increase by a row steel ball, thus form the hub bearing of three row steel ball designs, but it is mainly paid close attention to, when automobile turning etc. is subject to axial impact force, hub bearing Problem of Failure, although it adds hub bearing bearing capacity, have problems as follows:
Adopt between two row steel balls, increase steel ball design, axial carrying capacity when it mainly makes automobile turning etc. be subject to axial impact force improves; But existing for heavy-duty freight car, it uses and often exceeds design carrying, and three row roller four point contact type hub bearings of such said structure, radial capacity can not meet heavily loaded requirement, and hub bearing is the beginning of fatigue failure because of overload often.
Summary of the invention
For the deficiency that prior art exists, the purpose of this utility model is to provide one can realize bearing tilting moment, can bear again the heavily loaded hub bearing of larger radial load.
For achieving the above object, the utility model provides following technological scheme: a kind of heavily loaded hub bearing, comprise bearing inner race and bearing outer ring, a bearing bore is formed between the outer side wall of described bearing inner race and the madial wall of bearing outer ring, retainer is provided with in described bearing bore, described retainer is provided with three row rollers, three row and three row rollers roller guide raceway is one to one provided with in bearing bore, described retainer comprises point retainer that two are distributed in bearing bore both sides, two points of retainers lay respectively in two row roller guide raceways of bearing bore both sides, two row in described three row rollers are distributed in point retainer respectively, described point retainer extends towards another point of retainer respectively, clamping part in the middle of being formed, middle retaining part is in a middle row roller guide raceway, remaining a row roller is arranged in middle clamping part, it is characterized in that: the row roller being positioned at described middle blessing portion is cylindrical roller.
Columna roller set up by hub bearing of the present utility model, but do not increase whole bearing space, make the installation of hub bearing with the same before, cylindrical roller can bear larger radial load, meet heavy-duty freight car to use, avoid because load-carrying is excessive or the hub bearing getting up early fatigue flake caused that overloads.
The utility model is set to further: described middle blessing portion is that two points of retainers disconnect separate space between formation, has filled up columna roller in a middle row roller guide raceway.
By adopting technique scheme, middle blessing portion is that two points of retainers disconnect separate space between formation, the actual retainer part cancelling intermediate cylindrical roller, and middle cylindrical roller adopts completely dress, further increase radial bearing capacity, improve hub bearing working life.
The utility model is set to further: be provided with backbone sealing ring between described bearing outer ring and bearing inner race, and described backbone sealing ring is separately positioned on bearing bore both ends open place.
Under adopting said structure design, the better tightness of hub bearing of the present utility model.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is the utility model conventional boss bearing structure schematic diagram;
Fig. 2 is the utility model specific embodiment heavy duty hub bearing structural representation.
Embodiment
See accompanying drawing 2, a kind of heavily loaded hub bearing disclosed in the utility model, comprise bearing inner race 1 and bearing outer ring 2, a bearing bore 3 is formed between the outer side wall of described bearing inner race 1 and the madial wall of bearing outer ring 2, be provided with retainer in described bearing bore 3, described retainer is provided with three row rollers 5,6,7; Three row and three row rollers roller guide raceway 31,32,33 is one to one provided with in bearing bore 3.Described retainer 4 comprises point retainer 41,42 that two are distributed in bearing bore 3 both sides, two points of retainers 41,42 lay respectively in two row roller guide raceways 31,32 of bearing bore 3 both sides, two row 5,6 in described three row rollers are distributed in point retainer 41,42 respectively, and namely two in three row rollers are listed in the roller guide raceway of both sides and roll; A described point retainer 41 extends towards another point of retainer 42 respectively, clamping part in the middle of being formed, middle retaining part is in a middle row roller guide raceway 33, remain a row roller 7 to be arranged in middle clamping part, remain a row roller (a middle row roller) and roll in a middle row roller guide raceway; The row roller 7 being positioned at described middle blessing portion is cylindrical roller.Be that steel ball changes cylindrical roller into by a row roller in the middle of tradition, realize the raising greatly of radial load, reach and improve radial bearing capacity, meet heavily loaded requirement.
In this specific embodiment, described middle blessing portion is that two points of retainers 41,42 disconnect separate space between formation, has filled up columna roller 7 in a middle row roller guide raceway 33.Middle blessing portion be two points of retainers disconnect formed between separate space, the actual retainer part cancelling intermediate cylindrical roller, middle cylindrical roller adopts full dress, further increases radial bearing capacity, improves hub bearing working life.Between described bearing outer ring 2 and bearing inner race 1, be provided with backbone sealing ring 8, described backbone sealing ring 8 is separately positioned on bearing bore both ends open place.
Hub bearing of the present utility model is compared with before, the steel ball roller cylindrical roller set up centre is replaced, although weaken to some extent in axial carrying capacity, but larger radial load can be born, meet heavy-duty freight car to use (the heavy-duty freight car feature that often rotating speed is low and radial load is large), avoid because load-carrying is excessive or the hub bearing getting up early fatigue flake caused that overloads.
Claims (3)
1. a heavily loaded hub bearing, comprise bearing inner race and bearing outer ring, a bearing bore is formed between the outer side wall of described bearing inner race and the madial wall of bearing outer ring, retainer is provided with in described bearing bore, described retainer is provided with three row rollers, three row and three row rollers roller guide raceway is one to one provided with in bearing bore, described retainer comprises point retainer that two are distributed in bearing bore both sides, two points of retainers lay respectively in two row roller guide raceways of bearing bore both sides, two row in described three row rollers are distributed in point retainer respectively, described point retainer extends towards another point of retainer respectively, clamping part in the middle of being formed, middle retaining part is in a middle row roller guide raceway, remaining a row roller is arranged in middle clamping part, it is characterized in that: the row roller being positioned at described middle blessing portion is cylindrical roller.
2. heavily loaded hub bearing according to claim 1, is characterized in that: described middle blessing portion be two points of retainers disconnect formed between separate space, filled up columna roller in a middle row roller guide raceway.
3. heavily loaded hub bearing according to claim 1 or 2, is characterized in that: be provided with backbone sealing ring between described bearing outer ring and bearing inner race, described backbone sealing ring is separately positioned on bearing bore both ends open place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420787603.6U CN204312549U (en) | 2014-12-12 | 2014-12-12 | A kind of heavily loaded hub bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420787603.6U CN204312549U (en) | 2014-12-12 | 2014-12-12 | A kind of heavily loaded hub bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204312549U true CN204312549U (en) | 2015-05-06 |
Family
ID=53134867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420787603.6U Expired - Fee Related CN204312549U (en) | 2014-12-12 | 2014-12-12 | A kind of heavily loaded hub bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204312549U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115076228A (en) * | 2022-08-23 | 2022-09-20 | 江苏比傲汽车科技有限公司 | Wheel hub bearing for automobile |
| CN116972070A (en) * | 2023-08-31 | 2023-10-31 | 重庆长江轴承股份有限公司 | Three-row ball hub bearing for new energy automobile |
-
2014
- 2014-12-12 CN CN201420787603.6U patent/CN204312549U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115076228A (en) * | 2022-08-23 | 2022-09-20 | 江苏比傲汽车科技有限公司 | Wheel hub bearing for automobile |
| CN116972070A (en) * | 2023-08-31 | 2023-10-31 | 重庆长江轴承股份有限公司 | Three-row ball hub bearing for new energy automobile |
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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: 20150506 |