CN209781482U - Deep groove ball bearing with good sealing performance - Google Patents
Deep groove ball bearing with good sealing performance Download PDFInfo
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- CN209781482U CN209781482U CN201920393139.5U CN201920393139U CN209781482U CN 209781482 U CN209781482 U CN 209781482U CN 201920393139 U CN201920393139 U CN 201920393139U CN 209781482 U CN209781482 U CN 209781482U
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- seal lip
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Abstract
The utility model discloses a deep groove ball bearing that leakproofness is good includes the outer lane, the inner circle, steel ball and holder, a sealing washer is installed respectively to the both sides of holder, the first seal lip that the inner lip of every sealing washer set up including an organic whole, the second seal lip, third seal lip and fourth seal lip, first seal lip, second seal lip and third seal lip slant seal ring's axial inboard respectively, first seal lip, second seal lip and third seal lip radially from outside to inside setting in proper order along the sealing washer, the axial outside of fourth seal lip slant seal ring, the second seal lip, third seal lip and fourth seal lip contact sealing cooperation with the inner circle respectively. The inner lip of the sealing ring of the bearing adopts a four-lip structure, the sealing performance of the bearing can be effectively improved, and the first sealing lip plays a role in guiding oil, so that the bearing is not easy to enter water when used in a humid and often-ponded environment, lubricating grease packaged in the bearing is not easy to leak, the lubricating performance of the bearing is favorably kept, and the service life of the bearing is prolonged.
Description
Technical Field
The utility model relates to a deep groove ball bearing technical field specifically is a deep groove ball bearing that leakproofness is good.
Background
Deep groove ball bearings are a common type of bearing and typically include an outer race, an inner race, steel balls, a cage, and a seal ring. The inner lip of the existing sealing ring usually adopts a three-lip sealing structure, only can play a simple sealing role, and water is easy to enter when the bearing is used in a humid and often accumulated water environment, so that the bearing lubrication fails, and the bearing is burnt out due to early abrasion.
Disclosure of Invention
The utility model aims to solve the technical problem that, to prior art not enough, provide a deep groove ball bearing that leakproofness is good, be difficult for intaking when the environment of moist and normal ponding is used, the lubricating grease of encapsulation is difficult for leaking in the bearing simultaneously, is favorable to keeping the lubricating property of bearing and improves bearing life.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a deep groove ball bearing that leakproofness is good, includes outer lane, inner circle, steel ball and holder, the outer lane set up the outside of inner circle, the holder install the outer lane with the inner circle between, the steel ball install the holder on, the both sides of holder install a sealing washer respectively, two the sealing washer set up respectively the outer lane with the inner circle between, every the outer lip of sealing washer with the outer lane contact seal cooperation, every the inner lip of sealing washer with the inner circle contact seal cooperation, every the inner lip of sealing washer include integrative first seal lip, second seal lip, third seal lip and the fourth seal lip that sets up, first seal lip, second seal lip and third seal lip slant respectively the axial inboard of this sealing washer, first seal lip, The second sealing lip and the third sealing lip are sequentially arranged from outside to inside along the radial direction of the sealing ring, the fourth sealing lip is inclined to the axial outer side of the sealing ring, and the second sealing lip, the third sealing lip and the fourth sealing lip are respectively in contact sealing fit with the inner ring.
The utility model discloses deep groove ball bearing's the inner lip of sealing washer adopts first seal lip, the second seal lip, the four lip structures that third seal lip and fourth seal lip constitute, and the second seal lip, the sealed cooperation of contact seal with the inner circle simultaneously of third seal lip and fourth seal lip, can effectively improve the leakproofness of bearing, first seal lip plays the oil guide effect simultaneously, thereby the bearing is difficult for intaking when the environment of humidity and normal ponding uses, the lubricating grease of encapsulation is difficult for leaking in the bearing, be favorable to keeping the lubricating property of bearing and improve bearing life.
Preferably, a narrow diameter ring is integrally connected between the second sealing lip and the third sealing lip, the fourth sealing lip is integrally connected with the narrow diameter ring, and the third sealing lip and the fourth sealing lip are respectively positioned at two sides of the narrow diameter ring. After the narrow-diameter ring is arranged, concave cavities can be formed on two sides of the narrow-diameter ring respectively, and the sealing effect is further improved.
further, the surface of inner circle be provided with first annular groove, the medial surface and the lateral surface of first annular groove be the inclined plane respectively, the inboard of the medial surface of first annular groove be connected with first transition cambered surface, the outside of the lateral surface of first annular groove be connected with second transition cambered surface, first seal lip with the inner circle between have the clearance, the second seal lip with first transition cambered surface contact sealing cooperation, the third seal lip with the medial surface contact sealing cooperation of first annular groove, the fourth seal lip with second transition cambered surface contact sealing cooperation. The fourth sealing lip, the first annular groove, the third sealing lip, the second sealing lip and the first sealing lip form a self-inward multi-stage sealing structure, and good sealing performance of the sealing ring can be guaranteed.
Preferably, the inner surface of the outer ring is provided with a second annular groove, the outer side surface of the second annular groove is an inclined surface, the outer lip of each sealing ring inclines towards the outer side surface of the second annular groove, the outer lip of each sealing ring is in contact sealing fit with the outer side surface of the second annular groove, and the inner side surface of the outer lip of each sealing ring is in contact sealing fit with the inner side surface of the second annular groove.
Further, a third annular groove is formed in the outer side face of the outer lip of each sealing ring. The third annular groove can provide a space for elastic deformation when the outer lip compresses the outer ring, so that the assembly precision of the sealing ring is improved, and the sealing ring is in closer contact with the outer ring.
Preferably, an annular framework is sealed in each sealing ring, an inward-bent bending part is integrally arranged at one end, close to the outer lip of the sealing ring, of the annular framework, and the bending part extends into the outer lip of the sealing ring. The bending part can improve the strength of the outer lip and ensure the contact sealing effect of the outer lip and the outer ring, thereby ensuring the sealing performance of the sealing ring.
Compared with the prior art, the utility model has the advantages of as follows: the utility model discloses a deep groove ball bearing's that leakproofness is good inner lip adopts first seal lip, the second seal lip, the four lip structures that third seal lip and fourth seal lip constitute, and the second seal lip, the sealed cooperation of contact seal with the inner circle simultaneously of third seal lip and fourth seal lip, can effectively improve the leakproofness of bearing, first seal lip plays the oil guide effect simultaneously, thereby the bearing is difficult for intaking when the environment of humidity and normal ponding uses, the lubricating grease of encapsulation is difficult for leaking in the bearing, be favorable to keeping the lubricating property of bearing and improve bearing life.
Drawings
FIG. 1 is a structural sectional view of a deep groove ball bearing in an embodiment;
FIG. 2 is an enlarged view of FIG. 1 at A;
Fig. 3 is an enlarged view of fig. 2 at B.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
The deep groove ball bearing with good sealing performance of embodiment 1, as shown in the figure, is a deep groove ball bearing with good sealing performance, comprising an outer ring 1, an inner ring 2, a steel ball 3 and a retainer (not shown in the figure), wherein the outer ring 1 is arranged at the outer side of the inner ring 2, the retainer is arranged between the outer ring 1 and the inner ring 2, the steel ball 3 is arranged on the retainer, two sealing rings 4 are respectively arranged at two sides of the retainer, two sealing rings 4 are respectively arranged between the outer ring 1 and the inner ring 2, an outer lip 6 of each sealing ring 4 is in contact sealing fit with the outer ring 1, an inner lip 5 of each sealing ring 4 is in contact sealing fit with the inner ring 2, the inner lip 5 of each sealing ring 4 comprises a first sealing lip 51, a second sealing lip 52, a third sealing lip 53 and a fourth sealing lip 54 which are integrally arranged, the first sealing lip 51, the second sealing lip 52 and the third sealing, the first sealing lip 51, the second sealing lip 52 and the third sealing lip 53 are sequentially arranged from outside to inside along the radial direction of the sealing ring 4, the fourth sealing lip 54 inclines to the axial outer side of the sealing ring 4, and the second sealing lip 52, the third sealing lip 53 and the fourth sealing lip 54 are respectively in contact sealing fit with the inner ring 2.
In embodiment 1, each seal ring 4 is internally sealed with an annular skeleton 41, one end of the annular skeleton 41 close to the outer lip 6 is integrally provided with an inward-bent part 42, and the bent part 42 extends into the outer lip 6.
The deep groove ball bearing of embodiment 2, which is superior in sealing performance, differs from embodiment 1 in that, as shown in the drawing, in embodiment 2, a narrow diameter ring 55 is integrally connected between the second seal lip 52 and the third seal lip 53, the fourth seal lip 54 is integrally connected to the narrow diameter ring 55, and the third seal lip 53 and the fourth seal lip 54 are respectively located on both sides of the narrow diameter ring 55. The surface of inner circle 2 is provided with first annular groove 21, the medial surface and the lateral surface of first annular groove 21 are the inclined plane respectively, the inboard of the medial surface of first annular groove 21 is connected with first transition cambered surface, the outside of the lateral surface of first annular groove 21 is connected with the second transition cambered surface, the clearance has between first seal lip 51 and the inner circle 2, second seal lip 52 and the sealed cooperation of first transition cambered surface contact, third seal lip 53 and the sealed cooperation of the medial surface contact of first annular groove 21, fourth seal lip 54 and the sealed cooperation of second transition cambered surface contact.
In embodiment 2, the inner surface of the outer ring 1 is provided with a second annular groove 11, the outer side surface of the second annular groove 11 is an inclined surface, the outer lip 6 of each sealing ring 4 inclines to the outer side surface of the second annular groove 11, the outer lip 6 of each sealing ring 4 is in contact sealing fit with the outer side surface of the second annular groove 11, and the inner side surface of the outer lip 6 of each sealing ring 4 is in contact sealing fit with the inner side surface of the second annular groove 11. The outer side of the outer lip 6 of each sealing ring 4 is provided with a third annular groove 43.
Among the deep groove ball bearing that above leakproofness is good, fourth seal lip 54, first annular groove 21, third seal lip 53, second seal lip 52, first seal lip 51 constitutes from outside to inside multistage seal structure, combine the seal structure of the outer lip 6 of sealing washer 4, can effectively improve the leakproofness of bearing, first seal lip 51 plays the oil guide effect, thereby the bearing is difficult for intaking when the environment of humidity and normal ponding uses, the lubricating grease of encapsulation is difficult for leaking in the bearing, be favorable to keeping the lubricating property of bearing and improve bearing life.
Claims (6)
1. The utility model provides a deep groove ball bearing that leakproofness is good, includes outer lane, inner circle, steel ball and holder, the outer lane set up the outside of inner circle, the holder install the outer lane with the inner circle between, the steel ball install the holder on, the both sides of holder install a sealing washer respectively, two the sealing washer set up respectively the outer lane with the inner circle between, every the outer lip of sealing washer with the sealed cooperation of outer lane contact, every the inner lip of sealing washer with the sealed cooperation of inner circle contact, its characterized in that: every the inner lip of sealing washer include integrative first seal lip, second seal lip, third seal lip and the fourth seal lip that sets up, first seal lip, second seal lip and third seal lip slant respectively the axial inboard of this sealing washer, first seal lip, second seal lip and third seal lip radially in proper order from outside to inside setting along this sealing washer, the axial outside of this sealing washer of fourth seal lip slant, second seal lip, third seal lip and fourth seal lip respectively with inner circle contact seal cooperation.
2. The deep groove ball bearing with good sealing performance as claimed in claim 1, wherein: the second seal lip with the third seal lip between an organic whole be connected with the narrow footpath ring, the fourth seal lip with the narrow footpath ring body coupling, the third seal lip with the fourth seal lip be located respectively the both sides of narrow footpath ring.
3. The deep groove ball bearing with good sealing performance as claimed in claim 2, wherein: the surface of inner circle be provided with first annular groove, the medial surface and the lateral surface of first annular groove be the inclined plane respectively, the inboard of medial surface of first annular groove be connected with first transition cambered surface, the outside of lateral surface of first annular groove be connected with second transition cambered surface, first seal lip with the inner circle between have the clearance, the second seal lip with first transition cambered surface contact seal cooperation, the third seal lip with the medial surface contact seal cooperation of first annular groove, the fourth seal lip with second transition cambered surface contact seal cooperation.
4. The deep groove ball bearing with good sealing performance as claimed in claim 1, wherein: the inner surface of outer lane be provided with second annular groove, the lateral surface of second annular groove be the inclined plane, every the outer lip slant of sealing washer the lateral surface of second annular groove, every the outer lip of sealing washer with the lateral surface contact sealing cooperation of second annular groove, every the outer lip of sealing washer the medial surface with the medial surface contact sealing cooperation of second annular groove.
5. The deep groove ball bearing with good sealing performance as claimed in claim 4, wherein: and a third annular groove is formed in the outer side surface of the outer lip of each sealing ring.
6. The deep groove ball bearing with good sealing performance as claimed in claim 1, wherein: every the sealing washer in the encapsulation have cyclic annular skeleton, the one end an organic whole that is close to the outer lip of this sealing washer of cyclic annular skeleton be provided with the kink of incurving, the kink stretch into in the outer lip of this sealing washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920393139.5U CN209781482U (en) | 2019-03-26 | 2019-03-26 | Deep groove ball bearing with good sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920393139.5U CN209781482U (en) | 2019-03-26 | 2019-03-26 | Deep groove ball bearing with good sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209781482U true CN209781482U (en) | 2019-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920393139.5U Active CN209781482U (en) | 2019-03-26 | 2019-03-26 | Deep groove ball bearing with good sealing performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209781482U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113389813A (en) * | 2021-06-11 | 2021-09-14 | 广德中隆轴承有限公司 | Bearing for belt pulley of high-speed low-torque tensioner |
-
2019
- 2019-03-26 CN CN201920393139.5U patent/CN209781482U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113389813A (en) * | 2021-06-11 | 2021-09-14 | 广德中隆轴承有限公司 | Bearing for belt pulley of high-speed low-torque tensioner |
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