CN201461730U - Hub bearing - Google Patents
Hub bearing Download PDFInfo
- Publication number
- CN201461730U CN201461730U CN2009201170339U CN200920117033U CN201461730U CN 201461730 U CN201461730 U CN 201461730U CN 2009201170339 U CN2009201170339 U CN 2009201170339U CN 200920117033 U CN200920117033 U CN 200920117033U CN 201461730 U CN201461730 U CN 201461730U
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- CN
- China
- Prior art keywords
- ring
- seal ring
- hub bearing
- chamber
- seal
- 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
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Abstract
The utility model provides a hub bearing, which belongs to the technical field of mechanical engineering, and solves the problem that the existing hub bearing is not provided with a seal device. The hub bearing comprises an outer ring and two inner rings which are arranged in the outer ring side by side, wherein the inner wall of the outer ring is provided with two channels, the outer wall of each inner ring is provided with a channel, a steel ball is arranged in a chamber which is capable of being used for the steel ball to be placed inside and is formed by the channels between the outer ring and the inner ring through a retainer, and the two ends of the chamber are respectively provided with a seal ring assembly for blocking the end port of the chamber. In the utility model, since the seal ring assembly is arranged on the two ends of the chamber formed by the channels between the outer ring and the inner ring, the chamber can form a sealed chamber, thus effectively preventing the external water from permeating and the grease from leaking, and since the seal ring of the seal ring assembly is made of chemigum, the service life of the hub bearing can be greatly prolonged.
Description
Technical field
The utility model belongs to mechanical engineering technical field, relates to a kind of engineering element, particularly a kind of hub bearing.
Background technique
Establish two cover tapered roller bearings at present between the light bus front-wheel wheel shaft, the mode that need select during installation to adjust pad is carried out the gap apolegamy to two cover tapered roller bearings, adjusts moment, does not only trouble like this, and is difficult to guarantee assembly quality.In addition because bearing itself does not have seal arrangement, thus must be at the outside seal arrangement of installing of bearing, sealing apparatus structure complexity, bulky, self is heavier, loaded down with trivial details cost height is installed.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, has proposed a kind of hub bearing with sealing configuration, good airproof performance.
The purpose of this utility model can realize by following technical proposal: a kind of hub bearing, comprise an outer ring and two inner rings that are arranged side by side in the outer ring, the inwall of outer ring is provided with two raceway grooves, the outer wall of each inner ring is respectively equipped with a raceway groove, steel ball is arranged between outer ring and the inner ring by retainer and can places in the chamber of steel ball by raceway groove formation, it is characterized in that the two ends of described chamber are respectively equipped with the seal ring assembly that is used for the shutoff chamber port.
After chamber two-port place is provided with seal ring assembly, make this chamber form an airtight chamber, thereby resultfully prevent that extraneous water from penetrating in the chamber, the water of having avoided infiltrating causes steel ball to get rusty to make it pivoting friction and increases.The grease that the sealing coil assembly has also effectively been stopped in the chamber simultaneously leaks, thereby it is longer than the lubricated steel ball time of the hub bearing that seal ring assembly is not set to make this wheel hub bearing store the grease of same amount in chamber, so improved the working life of this wheel hub bearing greatly.
In above-mentioned hub bearing, described seal ring assembly comprises seal ring and is arranged on the interior support frame of seal ring.Seal ring generally all adopts rubber material to make, and rubber material is all softer yielding, and support frame can effectively stop to lose because of the seal ring distortion phenomenon of sealing effect in seal ring.
In above-mentioned hub bearing, described seal ring is circular, has seal lip on its inwall.Seal lip is littler than the area at other positions, and the seal lip place do not have support frame, makes it more easy deformation, so the sealing of seal lip and inner ring or outer ring is tighter.
In above-mentioned hub bearing, described seal ring is fixed on the outer ring, the internal diameter interference fit of the external diameter of seal ring and outer ring; The external diameter interference fit of the seal lip of internal diameter of the seal ring and inner ring.Adopt interference fit that seal ring is in and be compressive state, this moment, seal ring was tightr with contacting of inner ring or outer ring, can also automatically the gap that wearing and tearing are produced be compensated simultaneously.
In above-mentioned hub bearing, described seal ring is circular, has seal lip on its outer wall.
In above-mentioned hub bearing, described seal ring is fixed on the inner ring, the external diameter interference fit of the internal diameter of seal ring and inner ring; The internal diameter interference fit of the seal lip of seal ring external diameter and outer ring.
In above-mentioned hub bearing, described seal ring adopts nitrile rubber to make. and nitrile butadiene rubber has fabulous oil resistance and heat resistance, the high strong advantage of wear resistance, bonding force, so sealing can be born the time that life-span of producing behind the seal ring prolongs that is provided with entirely fully.
Compared with prior art, this wheel hub bearing adopts the two-port place of the chamber that forms by raceway groove between outer ring and inner ring that seal ring assembly is set, make this chamber form an airtight chamber, thereby effectively prevent the infiltration of extraneous water and leaking of grease, adopting nitrile rubber to make, so improved the working life of this wheel hub bearing greatly owing to the seal ring in the seal ring assembly.
Description of drawings
Fig. 1 is this wheel hub bearing sectional structure schematic representation.
Fig. 2 is the partial enlarged drawing at A place among this wheel hub bearing Fig. 1.
Among the figure, 1, the outer ring; 2, steel ball; 3, retainer; 4, inner ring; 5, seal ring assembly; 6, seal ring; 61, seal lip; 7, support frame; 8, chamber.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As depicted in figs. 1 and 2, this wheel hub bearing comprises two inner rings 4, outer ring 1, two retainers 3, two row steel balls 2, two groups of seal ring assemblies 5.
Specifically, outer ring 1 and inner ring 4 ringwise, the inwall of outer ring 1 is provided with two raceway grooves, two inner rings 4 are arranged side by side in outer ring 1, the outer wall of each inner ring 4 is respectively equipped with a raceway groove, the raceway groove on two inner rings 4 is relative.Between outer ring 1 and inner ring 4, form the chamber 8 that to place steel ball 2 by raceway groove, chamber 8 interior two ring raceways, one row steel ball 2 is set on every ring raceway, each row steel ball 2 is made up of 15 steel balls 2, on each row steel ball 2, establish a retainer 3 that steel ball 2 is evenly separated, thereby guarantee steel ball 2 orderly rolling on ring raceway.
Embodiment one
As depicted in figs. 1 and 2, be respectively equipped with the seal ring assembly 5 that is used for shutoff chamber 8 ports at the two ends of chamber 8, seal ring assembly 5 comprises seal ring 6 and the support frame 7 that is arranged in the seal ring 6.After chamber 8 two-port places are provided with seal ring assembly 5, make this chamber 8 form an airtight chamber, thereby resultfully prevent that extraneous water from penetrating in the chamber 8, the water of having avoided infiltrating causes steel ball 2 to get rusty to make it pivoting friction and increases.The grease that sealing coil assembly 5 has also effectively been stopped in the chamber 8 simultaneously leaks, thereby it is longer than lubricated 2 times of steel ball of the hub bearing that seal ring assembly 5 is not set to make this wheel hub bearing store the grease of same amount in chamber 8, so improved the working life of this wheel hub bearing greatly.
Seal ring 6 adopts nitrile rubber to make.Nitrile butadiene rubber has fabulous oil resistance and heat resistance, the high strong advantage of wear resistance, bonding force, so sealing can be born the time that life-spans that seal ring 6 backs produce prolong that is provided with entirely fully.
Seal ring 6 is circular, has seal lip 61 on its inwall, and seal ring 6 is fixed on the outer ring 1, the internal diameter interference fit of the external diameter of seal ring 6 and outer ring 1; The seal lip 61 of seal ring 6 internal diameters and the external diameter interference fit of inner ring 4.Adopt interference fit that seal ring 6 is in and be compressive state, this moment, seal ring 6 was tightr with contacting of inner ring 4 or outer ring 1, can also automatically the gap that wearing and tearing are produced be compensated simultaneously.
Embodiment two
Present embodiment is basic identical with embodiment one structure and principle, and different place is: seal ring 6 is circular, has seal lip 61 on its outer wall; Seal ring 6 is fixed on the inner ring 4, the external diameter interference fit of the internal diameter of seal ring 6 and inner ring 4; The seal lip 61 of seal ring 6 external diameters and the internal diameter interference fit of outer ring 1.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used outer ring 1 morely; Steel ball 2; Retainer 3; Inner ring 4; 5, seal ring assembly 5; Seal ring 6; Seal lip 61; Support frame 7; Chamber 8 terms such as grade, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (7)
1. hub bearing, comprise an outer ring (1) and two inner rings (4) that are arranged side by side in outer ring (1), the inwall of outer ring (1) is provided with two raceway grooves, the outer wall of each inner ring (4) is respectively equipped with a raceway groove, steel ball (2) is arranged between outer ring (1) and the inner ring (4) by retainer (3) and can places in the chamber (8) of steel ball (2) by raceway groove formation, it is characterized in that the two ends of described chamber (8) are respectively equipped with the seal ring assembly (5) that is used for shutoff chamber (8) port.
2. hub bearing according to claim 1 is characterized in that, described seal ring assembly (5) comprises seal ring (6) and is arranged on the interior support frame (7) of seal ring (6).
3. hub bearing according to claim 2 is characterized in that, described seal ring (6) is circular, has seal lip (61) on its inwall.
4. hub bearing according to claim 3 is characterized in that, described seal ring (6) is fixed on the outer ring (1), the internal diameter interference fit of the external diameter of seal ring (6) and outer ring (1); The seal lip (61) of seal ring (6) internal diameter and the external diameter interference fit of inner ring (4).
5. hub bearing according to claim 4 is characterized in that, described seal ring (6) is circular, has seal lip (61) on its outer wall.
6. hub bearing according to claim 3 is characterized in that, described seal ring (6) is fixed on the inner ring (4), the external diameter interference fit of the internal diameter of seal ring (6) and inner ring (4); The seal lip (61) of seal ring (6) external diameter and the internal diameter interference fit of outer ring (1).
7. hub bearing according to claim 3 is characterized in that, described seal ring (6) adopts nitrile rubber to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201170339U CN201461730U (en) | 2009-04-07 | 2009-04-07 | Hub bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201170339U CN201461730U (en) | 2009-04-07 | 2009-04-07 | Hub bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201461730U true CN201461730U (en) | 2010-05-12 |
Family
ID=42389083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201170339U Expired - Fee Related CN201461730U (en) | 2009-04-07 | 2009-04-07 | Hub bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201461730U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216524A (en) * | 2013-05-06 | 2013-07-24 | 无锡市第二轴承有限公司 | High-speed precise combined bearing |
| CN103867579A (en) * | 2012-12-10 | 2014-06-18 | 杭州冠群科技开发有限公司 | Special-shaped skeleton rubber sealing ring |
-
2009
- 2009-04-07 CN CN2009201170339U patent/CN201461730U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867579A (en) * | 2012-12-10 | 2014-06-18 | 杭州冠群科技开发有限公司 | Special-shaped skeleton rubber sealing ring |
| CN103216524A (en) * | 2013-05-06 | 2013-07-24 | 无锡市第二轴承有限公司 | High-speed precise combined 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 |
Granted publication date: 20100512 Termination date: 20180407 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |