CN108869554A - Bearing seal - Google Patents
Bearing seal Download PDFInfo
- Publication number
- CN108869554A CN108869554A CN201811015198.5A CN201811015198A CN108869554A CN 108869554 A CN108869554 A CN 108869554A CN 201811015198 A CN201811015198 A CN 201811015198A CN 108869554 A CN108869554 A CN 108869554A
- Authority
- CN
- China
- Prior art keywords
- sealing
- seal
- sealing ring
- ring
- spring
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 106
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 10
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 claims description 10
- 239000000428 dust Substances 0.000 abstract description 9
- 230000009977 dual effect Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3208—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3248—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
Abstract
The invention discloses a kind of bearing seals, including seal, the lower end of seal is fixedly installed with the first sealing ring, and the upper end of seal is fixedly installed with the second sealing ring, position among the upper end outer surface of second sealing ring and the lower end outer surface of the first sealing ring is fixedly installed with sealing inner ring, and seal groove is offered between sealing inner ring and the second sealing ring and the first sealing ring, the outer surface of sealing inner ring is provided with the first PTFE overlay film, and the upper and lower ends outer surface for sealing inner ring offers through-hole close to intermediate position.The present invention makes the present apparatus that can not only prevent Bearing inner greasy dirt from leaking in use by being provided with a series of structure, it can also prevent external dust from entering Bearing inner simultaneously, seal two-sided can use, dual spring design, it closes seal more with bearing seal, optimizes use process.
Description
Technical field
The present invention relates to field of bearings more particularly to a kind of bearing seals.
Background technique
Bearing is the critical elements for connecting operating shaft and axle bed, it usually needs processing is sealed to bearing, bearing it is close
Envelope is usually to be handled using sealing element, but existing seal configuration is simple, and external dust is easily accessible in bearing, right
Bearing use impacts, and seal is mostly that single side uses, and can not accomplish that duplex bearing combines sealing, seal and bearing degree of being adjacent to
Not enough, it is easy to produce leakage, reduces the service performance of device.
Summary of the invention
A kind of bearing seal that embodiment of the present invention provides, including seal, the fixed peace in the lower end of the seal
Upper end equipped with the first sealing ring, and seal is fixedly installed with the second sealing ring, the upper end outer surface of second sealing ring
It is fixedly installed with sealing inner ring with the position among the lower end outer surface of the first sealing ring, and seals inner ring and the second sealing ring
And first offer seal groove between sealing ring (2), the outer surface of the sealing inner ring is provided with the first PTFE overlay film, and seals
The upper and lower ends outer surface of inner ring offers through-hole, side appearance of the sealing inner ring close to through-hole close to intermediate position
The position of face upper end is provided with sealing lip, and position of the sealing inner ring among a side external surface of through-hole offers waist
Slot.
It by using above-mentioned technical proposal, can not only prevent Bearing inner greasy dirt from leaking, while outside can also be prevented
Dust enters Bearing inner, and seal two-sided can use, and dual spring design closes seal more with bearing seal, excellent
Change use process.
In some embodiments, the inside of first sealing ring and the second sealing ring is provided with skeleton, described close
The upper and lower ends outer surface of envelope inner ring is provided with spring lip care.
By using above-mentioned technical proposal, skeleton plays booster action, and seal is made to keep shape and tension, spring lip care
Certain protection effect is played to the first spring.
In some embodiments, the sealing inner ring offers first close to the side upper and lower ends of the second sealing ring
Spring groove, and the internal activity of the first spring groove is equipped with the first spring.
By using above-mentioned technical proposal, the convergent force of the first spring self-tightening generates certain radial clamp force to bearing, makes
It is connected between seal and bearing even closer.
In some embodiments, it is described sealing inner ring diameter less than the first sealing ring and the second sealing ring diameter,
First spring is installed on the inside of seal groove.
By using above-mentioned technical proposal, seal the diameter of inner ring less than the diameter of the first sealing ring and the second sealing ring from
And form seal groove, seal groove be connected together with bearing to connect by the first spring it is even closer.
In some embodiments, the gain offers second spring slot, and second spring slot close to the side of through-hole
Internal activity second spring is installed, the second spring slot is provided with the 2nd PTFE overlay film close to the side of through-hole.
By using above-mentioned technical proposal, is combined and increased between seal and bearing with the first spring by second spring
The compactness of connection, the 2nd PTFE overlay film can effectively filter the impurity such as dust.
In some embodiments, the sealing inner ring is provided with dustproof lip close to the position of the side lower end of through-hole, institute
It states the first sealing ring and the second sealing ring is symmetrical.
By using above-mentioned technical proposal, dustproof lip can prevent extraneous dust from entering Bearing inner by seal, the
One sealing ring and the second sealing ring symmetrically form dual face seals, convenient for being sealed to two group of two bearings.
In conclusion the invention has the advantages that：
1, the position among the upper end outer surface of the second sealing ring and the lower end outer surface of the first sealing ring is fixedly mounted
There is sealing inner ring, seals and offer seal groove, the first sealing ring and second between inner ring and the second sealing ring and the first sealing ring
Sealing ring symmetrically forms dual face seals, and seal two sides can be sealed use, convenient for carrying out to two groups of connection bearings
Sealing；
2, sealing inner ring is provided with sealing lip close to the position of a side external surface upper end of through-hole, seals inner ring close to through-hole
The position of side lower end be provided with dustproof lip, seal can not only prevent Bearing inner from leaking by sealing lip, while benefit
It can prevent extraneous dust from entering by seal the inside of bearing with dustproof lip, realize dual face seals；
3, sealing inner ring offers the first spring groove close to the side upper and lower ends of the second sealing ring, the first spring groove
Internal activity is equipped with the first spring, and gain offers second spring slot close to the side of through-hole, and the inside of second spring slot is living
It is dynamic that second spring is installed, combined by second spring with the first spring increase connected between seal and bearing it is close
Property.
The additional aspect and advantage of embodiment of the present invention will be set forth in part in the description, partially will be from following
Become obvious in description, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage of the invention is from combining in description of the following accompanying drawings to embodiment by change
It obtains obviously and is readily appreciated that, wherein：
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is interior views of the invention；
Fig. 3 is that sealing lip of the invention combines view with second spring；
Fig. 4 is the enlarged drawing of A in Fig. 3 of the invention.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are only used for
Purpose is described, relative importance is not understood to indicate or imply or implicitly indicates the quantity of indicated technical characteristic.
" first " is defined as a result, the feature of " second " can explicitly or implicitly include one or more feature.?
In description of the invention, the meaning of " plurality " is two or more, unless otherwise specifically defined.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected or can mutually communicate；It can be directly connected, it can also be by between intermediary
It connects connected, can be the connection inside two elements or the interaction relationship of two elements.For the ordinary skill of this field
For personnel, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the description of the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or
"lower" may include that the first and second features directly contact, also may include the first and second features be not direct contact but
Pass through the other characterisation contact between them.Moreover, fisrt feature includes above the second feature " above ", " above " and " above "
Fisrt feature is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.First
Feature is directly below and diagonally below the second feature including fisrt feature under the second feature " below ", " below " and " below ", or only
Only indicate that first feature horizontal height is less than second feature.
Following disclosure provides many different embodiments or example is used to realize different structure of the invention.In order to
Simplify disclosure of the invention, hereinafter the component of specific examples and setting are described.Certainly, they are merely examples, and
And it is not intended to limit the present invention.In addition, the present invention can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, itself not indicate between discussed various embodiments and/or setting
Relationship.In addition, the present invention provides various specific techniques and material example, but those of ordinary skill in the art can be with
Recognize the application of other techniques and/or the use of other materials.
Fig. 1-Fig. 4, a kind of bearing seal that embodiment of the present invention provides, including seal 1 are please referred to, sealing is passed through
The lower end of body 1 is fixedly mounted the first sealing ring 2, and the upper end of seal 1 is fixedly mounted the second sealing ring 3, the second sealing ring 3 it is upper
Position among end outer surface and the lower end outer surface of the first sealing ring 2, which is fixedly mounted, seals inner ring 4, sealing inner ring 4 and the
Seal groove 5 is opened up between two sealing rings 3 and the first sealing ring (2), bearing is blocked using seal groove 5 and makes seal 1 and bearing
It is connected to carry out bearing and seal, the first PTFE overlay film 6 is arranged in the outer surface of sealing inner ring 4, and the first PTFE overlay film 6 plays
Filter effect, the upper and lower ends outer surface for sealing inner ring 4 open up through-hole 7 close to intermediate position, seal inner ring 4 close to through-hole
Sealing lip 8 is arranged in the position of a 7 side external surface upper end, and sealing lip 8 can prevent Bearing inner substance from leaking, and sealing inner ring 4 leans on
Position among one side external surface of nearly through-hole 7 opens up gain 9, optimizes use process.
In some embodiments, the inside of the first sealing ring 2 and the second sealing ring 3 is respectively provided with skeleton 31, seals inner ring 4
Upper and lower ends outer surface be respectively provided with spring lip care 32, skeleton 31 plays booster action, so that seal 1 is kept shape and tension,
Spring lip care 32 plays certain protection effect to the first spring 34.
In some embodiments, sealing inner ring 4 opens up the first spring close to the side upper and lower ends of the second sealing ring 3
Slot 33, the internal activity of the first spring groove 33 install the first spring 34, and the convergent force of 34 self-tightening of the first spring generates one to bearing
Fixed radial clamp force makes to connect between seal 1 and bearing even closer.
In some embodiments, diameter of the diameter less than the first sealing ring 2 and the second sealing ring 3 of inner ring 4 is sealed,
First spring 34 is installed on the inside of seal groove 5, and it is straight less than the first sealing ring 2 and the second sealing ring 3 to seal the diameter of inner ring 4
Diameter to form seal groove 5, seal groove 5 be connected together with bearing to connect by the first spring 34 it is even closer.
In some embodiments, gain 9 opens up second spring slot 92 close to the side of through-hole 7, second spring slot 92
Internal activity installs second spring 91, and second spring slot 92 is arranged the 2nd PTFE overlay film 93 close to the side of through-hole 7, passes through second
Spring 91 combines the compactness for increasing and connecting between seal 1 and bearing with the first spring 34, and the 2nd PTFE overlay film 93 can be with
The effectively impurity such as filtering dust.
In some embodiments, sealing inner ring 4 close to the side lower end of through-hole 7 position be arranged dustproof lip 81, first
Symmetrically, dustproof lip 81 can prevent extraneous dust from entering Bearing inner by seal 1 for sealing ring 2 and the second sealing ring 3,
First sealing ring 2 and the second sealing ring 3 symmetrically form dual face seals, convenient for being sealed to two group of two bearings.
It should be noted that the present invention is bearing seal, by any one face alignment bearings of seal 1, benefit when use
Block bearing outer wall with seal groove 5, combined by second spring 91 with the first spring 34 make seal 1 to bearing wall inside and outside
Two sides squeeze simultaneously, increase the compactness connected between seal 1 and bearing, and inside the first sealing ring 2 and the second sealing ring 3
Skeleton 31 play booster action, so that seal 1 is kept shape and tension, then prevent Bearing inner from leaking by sealing lip 8,
Can prevent extraneous dust from entering by sealing element the inside of bearing using dustproof lip 81 simultaneously, ensure that bearing and seal 1 it
Between airtightness, pass through the first sealing ring 2 and the second sealing ring 3 symmetrically form dual face seals, 1 two sides of seal
It is sealed use, convenient for being sealed to two groups of connection bearings, effectively increases the functionality of its own, it is more practical.
In the description of this specification, reference term " embodiment ", " certain embodiments ", " schematically implementation
What the description of mode ", " example ", " specific example " or " some examples " etc. meant to describe in conjunction with the embodiment or example
Particular features, structures, materials, or characteristics are contained at least one embodiment or example of the invention.In this specification
In, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific spy of description
Sign, structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.
While embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that：?
These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principle of the present invention and objective and become
Type, the scope of the present invention are defined by the claims and their equivalents.
Claims (6)
1. a kind of bearing seal, including seal (1), which is characterized in that the lower end of the seal (1) is fixedly installed with
One sealing ring (2), and the upper end of seal (1) is fixedly installed with the second sealing ring (3), the upper end of second sealing ring (3)
Position among outer surface and the lower end outer surface of the first sealing ring (2) is fixedly installed with sealing inner ring (4), and seals inner ring
(4) it is offered between the second sealing ring (3) and the first sealing ring (2) seal groove (5), the outer surface of sealing inner ring (4)
It is provided with the first PTFE overlay film (6), and the upper and lower ends outer surface for sealing inner ring (4) offers through-hole close to intermediate position
(7), the position of a side external surface upper end of sealing inner ring (4) close to through-hole (7) is provided with sealing lip (8), the sealing
Position of the inner ring (4) among a side external surface of through-hole (7) offers gain (9).
2. bearing seal according to claim 1, which is characterized in that first sealing ring (2) and the second sealing ring
(3) inside is provided with skeleton (31), and the upper and lower ends outer surface of sealing inner ring (4) is provided with spring lip care
(32)。
3. bearing seal according to claim 1, which is characterized in that the sealing inner ring (4) is close to the second sealing ring
(3) side upper and lower ends offer the first spring groove (33), and the internal activity of the first spring groove (33) is equipped with first
Spring (34).
4. bearing seal according to claim 3, which is characterized in that the diameter of sealing inner ring (4) is less than first
The diameter of sealing ring (2) and the second sealing ring (3), first spring (34) are installed on the inside of seal groove (5).
5. bearing seal according to claim 1, which is characterized in that the gain (9) is opened close to the side of through-hole (7)
Internal activity equipped with second spring slot (92), and second spring slot (92) is equipped with second spring (91), the second spring
Slot (92) is provided with the 2nd PTFE overlay film (93) close to the side of through-hole (7).
6. bearing seal according to claim 1, which is characterized in that the one of sealing inner ring (4) close through-hole (7)
The position of side lower end is provided with dustproof lip (81), and first sealing ring (2) and the second sealing ring (3) are symmetrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811015198.5A CN108869554A (en) | 2018-08-31 | 2018-08-31 | Bearing seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811015198.5A CN108869554A (en) | 2018-08-31 | 2018-08-31 | Bearing seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108869554A true CN108869554A (en) | 2018-11-23 |
Family
ID=64322667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811015198.5A Pending CN108869554A (en) | 2018-08-31 | 2018-08-31 | Bearing seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108869554A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4699526A (en) * | 1985-08-01 | 1987-10-13 | Nok Corporation | Sealing device for bearings |
| CN2553196Y (en) * | 2002-07-18 | 2003-05-28 | 大庆油田有限责任公司 | O-shaped two-lip sealing ring |
| CN202431971U (en) * | 2011-12-16 | 2012-09-12 | 青岛开世密封工业有限公司 | Combination type polytetrafluoroethylene (PTFE) gear ring oil seal |
| CN103742651A (en) * | 2014-01-29 | 2014-04-23 | 烟台润蚨祥油封有限公司 | Low-friction reciprocating motion seal component |
| CN104279385A (en) * | 2014-08-13 | 2015-01-14 | 杭州优能特旋转接头制造厂 | Rotating joint with high sealing property |
| CN204459169U (en) * | 2015-01-30 | 2015-07-08 | 张维蛟 | A kind of reciprocating outside framework oil seal |
| CN104930194A (en) * | 2015-05-22 | 2015-09-23 | 泰州市建业车件制造有限公司 | Oil seal of engine |
| CN204755916U (en) * | 2015-06-26 | 2015-11-11 | 南京金三力橡塑有限公司 | Exoskeletal rubber oil seal of lips mouth J type |
| CN205298559U (en) * | 2015-12-31 | 2016-06-08 | 烟台润蚨祥油封有限公司 | Reciprocating motion oil blanket |
| CN105889517A (en) * | 2016-05-11 | 2016-08-24 | 四川行之智汇知识产权运营有限公司 | Follow-up ring for seal ring and sealing device |
| CN107035869A (en) * | 2017-05-31 | 2017-08-11 | 江苏海川卓越密封材料有限公司 | A kind of liquid labyrinth seal |
| CN207715745U (en) * | 2017-11-22 | 2018-08-10 | 河北诺克纽威橡塑制品有限公司 | A kind of Split type framework oil seal |
| CN208749832U (en) * | 2018-08-31 | 2019-04-16 | 无锡三立轴承股份有限公司 | Bearing seal |
-
2018
- 2018-08-31 CN CN201811015198.5A patent/CN108869554A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4699526A (en) * | 1985-08-01 | 1987-10-13 | Nok Corporation | Sealing device for bearings |
| CN2553196Y (en) * | 2002-07-18 | 2003-05-28 | 大庆油田有限责任公司 | O-shaped two-lip sealing ring |
| CN202431971U (en) * | 2011-12-16 | 2012-09-12 | 青岛开世密封工业有限公司 | Combination type polytetrafluoroethylene (PTFE) gear ring oil seal |
| CN103742651A (en) * | 2014-01-29 | 2014-04-23 | 烟台润蚨祥油封有限公司 | Low-friction reciprocating motion seal component |
| CN104279385A (en) * | 2014-08-13 | 2015-01-14 | 杭州优能特旋转接头制造厂 | Rotating joint with high sealing property |
| CN204459169U (en) * | 2015-01-30 | 2015-07-08 | 张维蛟 | A kind of reciprocating outside framework oil seal |
| CN104930194A (en) * | 2015-05-22 | 2015-09-23 | 泰州市建业车件制造有限公司 | Oil seal of engine |
| CN204755916U (en) * | 2015-06-26 | 2015-11-11 | 南京金三力橡塑有限公司 | Exoskeletal rubber oil seal of lips mouth J type |
| CN205298559U (en) * | 2015-12-31 | 2016-06-08 | 烟台润蚨祥油封有限公司 | Reciprocating motion oil blanket |
| CN105889517A (en) * | 2016-05-11 | 2016-08-24 | 四川行之智汇知识产权运营有限公司 | Follow-up ring for seal ring and sealing device |
| CN107035869A (en) * | 2017-05-31 | 2017-08-11 | 江苏海川卓越密封材料有限公司 | A kind of liquid labyrinth seal |
| CN207715745U (en) * | 2017-11-22 | 2018-08-10 | 河北诺克纽威橡塑制品有限公司 | A kind of Split type framework oil seal |
| CN208749832U (en) * | 2018-08-31 | 2019-04-16 | 无锡三立轴承股份有限公司 | Bearing seal |
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