CN203548585U - Motor bearing with sealed end face - Google Patents
Motor bearing with sealed end face Download PDFInfo
- Publication number
- CN203548585U CN203548585U CN201320571275.1U CN201320571275U CN203548585U CN 203548585 U CN203548585 U CN 203548585U CN 201320571275 U CN201320571275 U CN 201320571275U CN 203548585 U CN203548585 U CN 203548585U
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- Prior art keywords
- ring
- face
- sealing
- inner ring
- seal
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- 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 relates to a motor bearing with a sealed end face, and aims to solve the technical problem that the sealing effect of the end face of the sealing ring of the existing similar bearing is poor. The motor bearing with the sealed end face comprises an inner ring, an outer ring, a steel ball, a retainer and a sealing ring, wherein the steel ball and the retainer are connected between the inner ring and the outer ring; and the two ends of a chamber between the inner ring and the outer ring are respectively connected with the first sealing ring and the second sealing ring. The motor bearing is characterized in that the inner ring of the second sealing ring is provided with an end face sealing body which is raised out of the chamber; the inner side of the end face sealing body is in lip-type sealing fit with the outer terminal angle of the inner ring end face; by arranging the end face sealing body on the second sealing ring, the end face sealing body and the inner ring are in good tight fit with increase of the pressure of hydraulic oil when the bearing comes into contact with one side of hydraulic oil, so that the sealing is reliable and oil leakage is prevented. The motor bearing is suitable for occasions with high requirement on the end face sealing or for structural improvement of similar products.
Description
Technical field
The utility model relates to bearing, is a kind of motor bearings of end face seal.
Background technique
Bearing is a kind of component for axle supporting guiding.According to the needs of real work, when when the higher rotation speed operating mode, the dustproof of bearing often adopts iron dust cover, and during, the operating mode that need to compared with high sealing require poor for working environment, generally at chamber, bearing two ends indoor location rubber closure.The rubber seal adopting on existing market is mostly lips or three lip sealing rings, as the notice of authorization CN2573757Y of Chinese patent literature publication, September 17 2003 notice of authorization day, model utility name is called " three lip frontier defense water-stop bearings ", and it discloses a kind of bearing seal structure of three lips.But such three lip sealing ring, in some specific machineries, is still difficult to ensure card sealing.For example: some bearing connects after motor, the one side contacting with bearing is hydraulic oil and do not allow leakage of oil, and along with the increase gradually of hydraulic oil, pressure increases, adopt lips or three lip sealing rings often not to reach required seal request, therefore there is a kind of new seal ring to be designed.
Summary of the invention
For overcoming above-mentioned deficiency, the purpose of this utility model is that a kind of motor bearings of end face seal is provided to related domain, makes it solve the not good enough technical problem of seal ring end face seal effect of existing similar bearing.Its objective is and be achieved through the following technical solutions.
A motor bearings for end face seal, this bearing comprises inner ring, outer ring, steel ball, retainer, seal ring, between inner ring and outer ring, is connected steel ball, retainer, inner ring is connected respectively the first seal ring, the second seal ring with the chamber two ends between outer ring.Its structure outline be described the second seal ring in be equipped with the end face seal body that projection is exposed described chamber, this end face seal body inner side and the angle lip seal of described inner ring end face outer end.By above-mentioned end face seal body is set at the second seal ring, while making the one side of this bearing Fluid Contacting force feed, can increase along with hydraulic fluid pressure, and it is more tight that end face seal body and inner ring are fitted, thereby sealing is more reliable, effectively prevents leakage of oil.
The end face of described end face seal body is plane.
Described the first seal ring is three lip sealing rings.
Radial internal clearance between described inner ring and outer ring is made as 0.006～0.012mm, the requirement of rotating to adapt to high-speed electric expreess locomotive.
The utility model structure is comparatively simple, and end face seal is comparatively reliable, effective, is applicable to all kinds of occasion uses that end face are sealed with to high requirement, or the architecture advances of like product.
Accompanying drawing explanation
Fig. 1 is sectional structure schematic diagram of the present utility model.
Fig. 2 is the partial structurtes sectional view of the utility model outer ring.
Fig. 3 is the partial structurtes sectional view of the utility model inner ring.
In figure, the name of sequence number is called: 1, inner ring, 101, bear inner ring grooved railway, 2, outer ring, 201, outer ring raceway, 3, steel ball, 4, retainer, the 5, first seal ring, the 6, second seal ring, 601, end face seal body.
Embodiment
Now by reference to the accompanying drawings, the utility model is further described.
As shown in Figures 1 to 3, the motor bearings of this end face seal is by inner ring 1, outer ring 2, steel ball 3, retainer 4, the first seal ring 5, the second seal ring 6 forms, it is 2.43+0.02/0mm that inner ring is provided with ditch curvature R, coefficient of curvature is 0.510, circularity≤0.3um, the bear inner ring grooved railway 101 of roughness≤0.03um, it is 2.45+0.02/0mm that outer ring is provided with ditch curvature R, coefficient of curvature is 0.514, circularity≤0.5um, the outer ring raceway 201 of roughness≤0.03um, radial internal clearance Gr between inner ring and outer ring is set to 0.006～0.012mm, between bear inner ring grooved railway and outer ring raceway, load steel ball, and with retainer, steel ball is separated, the first seal ring is installed respectively at chamber two ends between inner ring and outer ring, the second seal ring, in the second seal ring, be equipped with projection and expose the end face seal body 601 of above-mentioned chamber, this end face seal body inner side and the angle lip seal of inner ring end face outer end.This bearing in use, contacts bearing the second seal ring place end face to offset with the one side of hydraulic oil.
Claims (4)
1. the motor bearings of an end face seal, this bearing comprises inner ring (1), outer ring (2), steel ball (3), retainer (4), seal ring, between inner ring and outer ring, be connected steel ball, retainer, inner ring is connected respectively the first seal ring (5), the second seal ring (6) with the chamber two ends between outer ring; It is characterized in that described the second seal ring (6) in be equipped with the end face seal body (601) that projection is exposed described chamber, this end face seal body inner side and described inner ring (1) end face outer end angle lip seal.
2. the motor bearings of end face seal according to claim 1, the end face that it is characterized in that described end face seal body (601) is plane.
3. the motor bearings of end face seal according to claim 1, is characterized in that described the first seal ring (5) is three lip sealing rings.
4. the motor bearings of end face seal according to claim 1, is characterized in that the radial internal clearance between described inner ring (1) and outer ring (2) is made as 0.006～0.012mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320571275.1U CN203548585U (en) | 2013-09-13 | 2013-09-13 | Motor bearing with sealed end face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320571275.1U CN203548585U (en) | 2013-09-13 | 2013-09-13 | Motor bearing with sealed end face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203548585U true CN203548585U (en) | 2014-04-16 |
Family
ID=50466707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320571275.1U Expired - Fee Related CN203548585U (en) | 2013-09-13 | 2013-09-13 | Motor bearing with sealed end face |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203548585U (en) |
-
2013
- 2013-09-13 CN CN201320571275.1U patent/CN203548585U/en not_active Expired - Fee Related
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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: 20140416 Termination date: 20170913 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |