CN203560297U - Compound seal type automobile hub bearing unit - Google Patents
Compound seal type automobile hub bearing unit Download PDFInfo
- Publication number
- CN203560297U CN203560297U CN201320654570.3U CN201320654570U CN203560297U CN 203560297 U CN203560297 U CN 203560297U CN 201320654570 U CN201320654570 U CN 201320654570U CN 203560297 U CN203560297 U CN 203560297U
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- Prior art keywords
- bearing
- ring
- seal
- retainer
- type automobile
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- Expired - Lifetime
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 18
- 238000005096 rolling process Methods 0.000 claims abstract description 20
- 239000004519 grease Substances 0.000 claims abstract description 6
- 230000001050 lubricating effect Effects 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 20
- 229920000459 Nitrile rubber Polymers 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 229920006351 engineering plastic Polymers 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000007306 turnover Effects 0.000 claims description 6
- 239000004677 Nylon Substances 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 5
- 229920001778 nylon Polymers 0.000 claims description 5
- 238000007598 dipping method Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a compound seal type automobile hub bearing unit belonging to the technical field of machinery. The compound seal type automobile hub bearing unit comprises a bearing outer ring, a bearing inner ring, a rolling body, a retainer, a seal ring, an oil slinger, and a locking ring, wherein a circular space is formed between the bearing inner ring and the bearing outer ring, a rolling path is arranged in the circular space, and the rolling body is mounted in the rolling path through the retainer; the outer diameter of the seal ring and the inner diameter of the bearing outer ring are in interference fit, the inner diameter of the seal ring and the outer diameter of the bearing inner ring are in the interference fit, the outer diameter of the oil slinger and the inner diameter of the bearing outer ring are in the interference fit, the inner diameter of the oil slinger and the outer diameter of the bearing inner ring are in the interference fit; by the seal ring and the oil slinger arranged in the bearing unit, the problem of isolation between a bearing work region and the outside is solved; the bearing inner ring comprises two half inner rings symmetrically mounted side by side, the half inner rings are connected and locked tightly by the locking ring, and two sides of each half inner ring have the different thicknesses, on one hand, lubricating grease in a bearing can be prevented from leaking out, on the other hand, the bearing unit can be relatively convenient to assemble.
Description
Technical field
The utility model relates to a kind of compound sealing type automobile hub bearing, belongs to mechanical field.
Background technique
Automobile hub bearing is for driving wheel or the non-driving wheel of car, and requiring has higher load-carrying ability, compact structure, non-maintaining, high reliability, and therefore bearing must have good sealability.At present, single lip or lips sealing structure circle that automobile hub bearing adopts, without the function of leakproof fat between anti-muddy water and bearing two inner rings.The anti-muddy water structure of the wheel hub using on market now, is much the anti-mud water sealing structure of bearing external sealed, and this combination seal, requires installing space large, during the high and installation fee of cost.Between bearing two inner rings, there is in addition seepage fat phenomenon, so in the urgent need to improving sealing means and the performance of hub-bearing unit more.
Model utility content
The defect existing for prior art, the purpose of this utility model is to propose a kind of compound sealing type automobile hub bearing, has good sealability, and simple in structure, easy to assembly.
In order to realize foregoing invention object, the utility model by the following technical solutions:
A kind of compound sealing type automobile hub bearing, comprise bearing outer ring, bearing inner race, rolling element, retainer, seal ring, oil thrower and retainer etc., between described bearing inner race and outer ring, form an annular space, in this annular space, be provided with raceway, rolling element is arranged in raceway by retainer; The both sides end face of described annular space is by annular seal ring and oil thrower sealing, wherein, the external diameter of the external diameter of described seal ring and bearing outer ring internal diameter, internal diameter of the seal ring and bearing inner race external diameter, described oil thrower and bearing outer ring internal diameter, oil thrower internal diameter and bearing inner race external diameter are interference fit; Above-mentioned bearing inner race comprises two symmetrical half inner rings of installing side by side, by retainer, connect and lock, the internal diameter of described bearing half inner ring connecting end is inwardly provided with a concave step, the concave step of two and half inner rings forms a groove, described retainer is " one " font, be arranged in above-mentioned groove, wherein the external diameter of retainer inwall and bearing inner race is interference fit, prevents that lubricating grease from flowing out from the gap location of two and half inner rings.
Above-mentioned retainer comprises engineering plastics skin, and is bonded in the nitrile butadiene rubber internal layer on the outer internal diameter of engineering plastics.
The free-ended external diameter in above-mentioned bearing half inner ring outside is provided with a circle card establishes the groove of oil thrower.Described bearing outer ring internal diameter both sides offer respectively a circle card establishes the groove of seal ring.
Above-mentioned bearing half inner ring connecting end thickness is less than the free-ended thickness in outside, and non-so same Thickness Design can make bearing unit more convenient when assembling.
Described seal ring comprises O-ring seal and skeleton, and O-ring seal is fastened on annular skeleton, and the external diameter of O-ring seal fixes in the groove of outer ring internal diameter, the outward-dipping turnover of the internal diameter of O-ring seal and with bearing inner race external diameter interference fit.
Described oil thrower comprises O-ring seal and skeleton, O-ring seal is fastened on annular skeleton, the internal diameter of described oil thrower O-ring seal fixes in the free-ended external diameter groove of bearing inner race, the turnover of the outer radial outer incline of oil thrower O-ring seal and with bearing outer ring internal diameter interference fit.
The cross section of the skeleton of above-mentioned seal ring and oil thrower is L shaped, and described O-ring seal adopts nitrile butadiene rubber circle, and its stage casing is supported fixing by skeleton.
Described rolling element is spherical rolling body.
Described retainer adopts glass fibre reinforced nylon retainer.
Described outer ring, inner ring, rolling element all adopt GCr15 steel to make, and the skeleton on seal ring and oil thrower all adopts 10 steel plates to make, and retainer adopts glass fibre reinforced nylon to make.
Adopting after technique scheme, the beneficial effect the utlity model has is:
1. by being arranged on seal ring, the oil thrower in bearing unit, solved kind of bearings working area and extraneous isolating problem, can prevent that muddy water from entering bearing unit inside, be specially adapted to use on rainy day and the peaceful road of mud;
2. above-mentioned bearing inner race adopts two and half inner rings compositions, and connects locking with retainer, and half inner ring thickness of two sides difference, and one side can prevent that the lubricating grease in bearing from overflowing, and can make on the other hand bearing unit more convenient when assembling.
Accompanying drawing explanation
Fig. 1 is preferred embodiment bearing unit structural representation of the present utility model;
Fig. 2 is preferred embodiment seal ring of the present utility model and oil thrower mounting structure schematic diagram.
In figure: 1, outer ring; 11, outer ring groove; 2, inner ring; 21, free end; 22, connecting end; 23, inner ring connecting end concave step; 24, inner ring free end groove; 3, rolling element; 4, retainer; 5, oil thrower; 51, O-ring seal; 52, skeleton; 6, seal ring; 61, O-ring seal; 62, skeleton; 7, retainer.
The realization of the utility model object, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, a kind of compound sealing type automobile hub bearing, comprise bearing outer ring 1, bearing inner race 2, rolling element 3, retainer 4, seal ring 6, oil thrower 5 and retainer 7 etc., between described bearing inner race 2 and outer ring 1, form an annular space, in this annular space, be provided with raceway, rolling element 3 is arranged in raceway by retainer 4, the both sides end face of described annular space seals by annular seal ring 6 and oil thrower 7, wherein, oil thrower 5 is positioned at the outside of seal ring 6, and the external diameter of the external diameter of described seal ring 6 and bearing outer ring 1 internal diameter, seal ring 6 internal diameters and bearing inner race 2 external diameters, described oil thrower 5 and bearing outer ring 1 internal diameter, oil thrower 5 internal diameters and bearing inner race 2 external diameters are interference fit, above-mentioned bearing inner race 2 comprises two symmetrical half inner rings of installing side by side, by retainer 7, connect and lock, described bearing half inner ring 2 one end is outwardly free end 21, one end is inwardly connecting end 22, the internal diameter of connecting end 22 is provided with a concave step 23, the concave step 23 of two and half inner rings forms a groove, described retainer is " one " font, be arranged in above-mentioned groove, retainer 7 comprises engineering plastics skin, with the nitrile butadiene rubber internal layer being bonded on the outer internal diameter of engineering plastics, the nitrile rubber internal layer of retainer 7 and the external diameter of bearing inner race 2 are interference fit, prevent that lubricating grease from flowing out from the gap location of two and half inner rings.Above-mentioned bearing half inner ring 2 connecting end 22 thickness are less than the thickness of outside free end 21, and non-so same Thickness Design can make bearing unit more convenient when assembling.Above-mentioned bearing inner race 2 adopts two and half inner rings compositions, and connects locking with retainer 7, and half inner ring thickness of two sides difference, and one side can prevent that the lubricating grease in bearing from overflowing, and can make on the other hand bearing unit more convenient when assembling.
The external diameter of the free end 21 in above-mentioned bearing half inner ring 2 outsides is provided with a circle card establishes the groove 24 of oil thrower 5.Described bearing outer ring 1 internal diameter both sides offer respectively a circle card establishes the groove 11 of seal ring 6.
As shown in Figure 2, described seal ring 6 comprises O-ring seal 61 and skeleton 62, and described O-ring seal 61 adopts nitrile butadiene rubber circle, is fastened on annular skeleton 62, and the cross section of described skeleton 62 is L shaped, and the stage casing of O-ring seal 61 is supported 62 by skeleton and fixed.Seal ring 6 is fixed between bearing outer ring 1 and bearing inner race 2 by O-ring seal 61, is specially: the external diameter of O-ring seal 61 fixes in the groove 11 of outer ring internal diameter, the outward-dipping turnover of internal diameter of O-ring seal 61 and with bearing inner race 2 external diameter interference fit.
Described oil thrower 5 comprises O-ring seal 51 and skeleton 52, and described O-ring seal 51 adopts nitrile butadiene rubber circle, is fastened on annular skeleton 52.The cross section of skeleton 52 is L shaped, and the stage casing of O-ring seal 51 is supported fixing by skeleton 52.Oil thrower 5 is fixed between bearing outer ring 1 and bearing inner race 2 by O-ring seal 51, be specially: the internal diameter of described oil thrower O-ring seal 51 fixes in the external diameter groove 24 of bearing inner race free end 21, the turnover of the outer radial outer incline of oil thrower O-ring seal 51 and with bearing outer ring 1 internal diameter interference fit.
In the present embodiment, described rolling element 3 is spherical rolling body.Described retainer 4 adopts glass fibre reinforced nylon retainer.Described outer ring 1, inner ring 2, rolling element 3 all adopt GCr15 steel to make, and the skeleton on seal ring 6 and oil thrower 5 all adopts 10 steel plates to make, and retainer 4 adopts glass fibre reinforced nylon to make.
In the present embodiment, described interference fit is specially: the internal diameter of seal ring 6 and bearing inner race 2 external diameters are close contact, and oil thrower 6 external diameters are with outer ring 1 internal diameter for gently to contact, and described retainer 7 internal diameters and bearing inner race connecting end 22 external diameters are close contact.
The foregoing is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure transformation that utilizes the utility model description to do; or directly or indirectly use the technical field that is attached to other Related products, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. a compound sealing type automobile hub bearing, it is characterized in that: comprise bearing outer ring, bearing inner race, rolling element, retainer, seal ring, oil thrower and retainer, between described bearing inner race and outer ring, form an annular space, in this annular space, be provided with raceway, rolling element is arranged in raceway by retainer; The both sides end face of described annular space is by annular seal ring and oil thrower sealing, wherein, the external diameter of the external diameter of described seal ring and bearing outer ring internal diameter, internal diameter of the seal ring and bearing inner race external diameter, described oil thrower and bearing outer ring internal diameter, oil thrower internal diameter and bearing inner race external diameter are interference fit; Above-mentioned bearing inner race comprises two symmetrical half inner rings of installing side by side, by retainer, connect and lock, the internal diameter of described bearing half inner ring connecting end is inwardly provided with a concave step, the concave step of two and half inner rings forms a groove, described retainer is " one " font, be arranged in above-mentioned groove, wherein the external diameter of retainer inwall and bearing inner race is interference fit, prevents that lubricating grease from flowing out from the gap location of two and half inner rings.
2. a kind of compound sealing type automobile hub bearing as claimed in claim 1, it is characterized in that: the free-ended external diameter in above-mentioned bearing half inner ring outside is provided with a circle card establishes the groove of oil thrower, described bearing outer ring internal diameter both sides offer respectively a circle card establishes the groove of seal ring.
3. a kind of compound sealing type automobile hub bearing as claimed in claim 1, is characterized in that: above-mentioned bearing half inner ring connecting end thickness is less than the free-ended thickness in outside.
4. a kind of compound sealing type automobile hub bearing as claimed in claim 2, it is characterized in that: described seal ring comprises O-ring seal and skeleton, O-ring seal is fastened on annular skeleton, the external diameter of O-ring seal fixes in the groove of outer ring internal diameter, the outward-dipping turnover of the internal diameter of O-ring seal and with bearing inner race external diameter interference fit.
5. a kind of compound sealing type automobile hub bearing as claimed in claim 2, it is characterized in that: described oil thrower comprises O-ring seal and skeleton, O-ring seal is fastened on annular skeleton, the internal diameter of described oil thrower O-ring seal fixes in the free-ended external diameter groove of bearing inner race, the turnover of the outer radial outer incline of oil thrower O-ring seal and with bearing outer ring internal diameter interference fit.
6. a kind of compound sealing type automobile hub bearing as described in claim 4 or 5, is characterized in that: the cross section of the skeleton of above-mentioned seal ring and oil thrower is L shaped, adopts 10 steel plates to make; Described O-ring seal adopts nitrile butadiene rubber circle, and its stage casing is supported fixing by skeleton.
7. a kind of compound sealing type automobile hub bearing as claimed in claim 1, is characterized in that: above-mentioned retainer comprises engineering plastics skin, and is bonded in the nitrile butadiene rubber internal layer on the outer internal diameter of engineering plastics.
8. a kind of compound sealing type automobile hub bearing as claimed in claim 1, is characterized in that: described rolling element is spherical rolling body.
9. a kind of compound sealing type automobile hub bearing as claimed in claim 1, is characterized in that: described retainer adopts glass fibre reinforced nylon retainer.
10. a kind of compound sealing type automobile hub bearing as claimed in claim 1, is characterized in that: described outer ring, inner ring, rolling element all adopt GCr15 steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320654570.3U CN203560297U (en) | 2013-10-22 | 2013-10-22 | Compound seal type automobile hub bearing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320654570.3U CN203560297U (en) | 2013-10-22 | 2013-10-22 | Compound seal type automobile hub bearing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203560297U true CN203560297U (en) | 2014-04-23 |
Family
ID=50510020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320654570.3U Expired - Lifetime CN203560297U (en) | 2013-10-22 | 2013-10-22 | Compound seal type automobile hub bearing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203560297U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953651A (en) * | 2014-05-14 | 2014-07-30 | 镇江华天轴承有限公司 | Non-contact sealing device for deep groove ball bearing |
| CN104235189A (en) * | 2014-08-19 | 2014-12-24 | 洛阳维斯格轴承有限公司 | Sealing ring framework structure of ultra-thin-wall bearing with uniform section |
-
2013
- 2013-10-22 CN CN201320654570.3U patent/CN203560297U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953651A (en) * | 2014-05-14 | 2014-07-30 | 镇江华天轴承有限公司 | Non-contact sealing device for deep groove ball bearing |
| CN104235189A (en) * | 2014-08-19 | 2014-12-24 | 洛阳维斯格轴承有限公司 | Sealing ring framework structure of ultra-thin-wall bearing with uniform section |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140423 |