CN203847568U - Ball bearing externally provided with double sealing covers - Google Patents
Ball bearing externally provided with double sealing covers Download PDFInfo
- Publication number
- CN203847568U CN203847568U CN201420192518.5U CN201420192518U CN203847568U CN 203847568 U CN203847568 U CN 203847568U CN 201420192518 U CN201420192518 U CN 201420192518U CN 203847568 U CN203847568 U CN 203847568U
- Authority
- CN
- China
- Prior art keywords
- bearing
- cover
- sealing
- outer ring
- inner race
- 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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- Sealing Of Bearings (AREA)
Abstract
The utility model relates to a ball bearing externally provided with double sealing covers. The ball bearing comprises a bearing inner ring and a bearing outer ring, wherein a steel ball is arranged between the bearing inner ring and the bearing outer ring; sealing covers are arranged between the bearing inner ring and the bearing outer ring; a dustproof cover is arranged at the outer side of each sealing cover; each dustproof cover is provided with a horizontal section and a bent hook section; the horizontal section of each dustproof cover is tightly fitted with the bearing inner ring; a groove is formed in the end face of the bearing outer ring; the bent hook section of each dustproof cover is inserted into the groove. The ball bearing is provided with a double-layered sealing structure so that external thick and large particle impurities can be effectively prevented from penetrating into the bearing; the sealing performance of the bearing is improved and the service life is long; the ball bearing is very suitable for a poor working environment.
Description
Technical field
The utility model relates to a kind of bearing, especially a kind of external double-sealing-cover ball bearing.
Background technique
General bearing seal performance all requires very high, and particularly, in severe working environment, sealability requires higher.In order to improve the sealability of bearing, the general form that adopts dual face seals, but after long-term use, because extraneous big particle impurity enters, rub for a long time with seal ring, seal ring is caused to damage, sealability declines, big particle impurity and then infiltrate the rolling element in bearing internal injury bearing, reduces whole bearing working life greatly.
Model utility content
The technical problems to be solved in the utility model is: a kind of external double-sealing ball bearing is provided, has double-layer sealing structure, can effectively stop that extraneous big particle impurity infiltrates in bearing, improves the sealability of bearing, to adapt to worse working environment.
The utility model solves the technological scheme that its technical problem adopts: a kind of external double-sealing-cover ball bearing, comprise bearing inner race and bearing outer ring, between described bearing inner race and bearing outer ring, be provided with steel ball, between described bearing inner race and bearing outer ring, be provided with sealing cover, described sealing cover is made up of rubber parts and skeleton, and described rubber parts and skeleton bond together; Described sealing cover bottom has three contact lips; Three described contact lips all equate with bearing inner race close contact and closeness of contact; The arranged outside of described sealing cover has dust cover; Described dust cover has horizontal segment and crotch section; The horizontal segment of described dust cover is close to bearing inner race; The end face of described bearing outer ring is provided with groove, and the crotch section of described dust cover is inserted in groove.
Further, in order to prevent dust cover landing, the degree of depth of groove described in the utility model is 3～4 millimeters.
Further say, in order better to increase sealability, dust cover described in the utility model is elastic component, and the crotch section of described dust cover has the stress of bearing inner race.
The beneficial effects of the utility model are, have solved the defect existing in background technique, have double-layer sealing structure, can effectively stop that extraneous big particle impurity infiltrates in bearing, improve the sealability of bearing, and long service life, more adapts to severe working environment.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation of preferred embodiment of the present utility model;
Fig. 2 is the partial enlarged drawing of Fig. 1;
In figure: 1, bearing outer ring; 2, bearing inner race; 3, steel ball; 4, sealing cover; 41, rubber parts; 42, skeleton; 5, contact lip; 6, dust cover; 7, horizontal segment; 8, crotch section; 9, groove.
Embodiment
With preferred embodiment, the utility model is described in further detail by reference to the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, and basic structure of the present utility model is only described in a schematic way, and therefore it only shows the formation relevant with the utility model.
The external double-sealing-cover ball bearing of one as shown in Figure 1, comprise bearing inner race 2 and bearing outer ring 1, between bearing inner race 2 and bearing outer ring 1, be provided with steel ball 3, between bearing inner race 2 and bearing outer ring 1, be provided with sealing cover 4, sealing cover 4 is made up of rubber parts 41 and skeleton 42, and rubber parts 41 and skeleton 42 bond together.
Sealing cover 4 bottoms have three contact lips 5; Three contact lips all equate with bearing inner race close contact and closeness of contact; The arranged outside of sealing cover has dust cover 6; Dust cover has horizontal segment 7 and crotch section 8; The horizontal segment of dust cover is close to bearing inner race; The end face of bearing outer ring is provided with groove 9, and the crotch section of dust cover is inserted in groove.
In order to prevent dust cover landing, the degree of depth of groove is 3 millimeters.
In order better to increase sealability, dust cover is elastic component, and the crotch section of described dust cover has the stress of bearing inner race.
The utlity model has double-layer sealing structure, can effectively stop that extraneous big particle impurity infiltrates in bearing, improve the sealability of bearing, long service life, more adapts to severe working environment; Efficiently solve the problem that bearing working interval is isolated from the outside, extended the working life of bearing, be conducive to widely popularize in Production of bearing enterprise.
What in above specification, describe is embodiment of the present utility model, various not illustrating is construed as limiting flesh and blood of the present utility model, person of an ordinary skill in the technical field read after specification can to before described embodiment make an amendment or be out of shape, and do not deviate from essence and the scope of model utility.
Claims (3)
1. an external double-sealing-cover ball bearing, comprise bearing inner race (2) and bearing outer ring (1), between described bearing inner race (2) and bearing outer ring (1), be provided with steel ball (3), it is characterized in that: between described bearing inner race (2) and bearing outer ring (1), be provided with sealing cover (4), described sealing cover (4) is made up of rubber parts (41) and skeleton (42), and described rubber parts (41) and skeleton (42) bond together; Described sealing cover (4) bottom has three contact lips (5); Described three contact lips (5) all equate with bearing inner race (2) close contact and closeness of contact; The arranged outside of described sealing cover (4) has dust cover (6); Described dust cover (6) has horizontal segment (7) and crotch section (8); The horizontal segment (7) of described dust cover (6) is close to bearing inner race (2); The end face of described bearing outer ring (1) is provided with groove (9), and the crotch section (8) of described dust cover (6) is inserted in groove (9).
2. external double-sealing-cover ball bearing as claimed in claim 1, is characterized in that: the degree of depth of described groove (9) is 3～4 millimeters.
3. external double-sealing-cover ball bearing as claimed in claim 1, is characterized in that: described dust cover (6) is elastic component, and the crotch section (8) of described dust cover (6) has the stress of bearing inner race (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420192518.5U CN203847568U (en) | 2014-04-18 | 2014-04-18 | Ball bearing externally provided with double sealing covers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420192518.5U CN203847568U (en) | 2014-04-18 | 2014-04-18 | Ball bearing externally provided with double sealing covers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203847568U true CN203847568U (en) | 2014-09-24 |
Family
ID=51560592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420192518.5U Expired - Fee Related CN203847568U (en) | 2014-04-18 | 2014-04-18 | Ball bearing externally provided with double sealing covers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203847568U (en) |
-
2014
- 2014-04-18 CN CN201420192518.5U patent/CN203847568U/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: 20140924 Termination date: 20180418 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |