CN108223589A - A kind of associated sealing arrangement for bearings - Google Patents
A kind of associated sealing arrangement for bearings Download PDFInfo
- Publication number
- CN108223589A CN108223589A CN201810124057.0A CN201810124057A CN108223589A CN 108223589 A CN108223589 A CN 108223589A CN 201810124057 A CN201810124057 A CN 201810124057A CN 108223589 A CN108223589 A CN 108223589A
- Authority
- CN
- China
- Prior art keywords
- spacer
- quiet
- cavity
- main shaft
- moving plate
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 39
- 125000006850 spacer group Chemical group 0.000 claims abstract description 82
- 238000010276 construction Methods 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 239000003921 oil Substances 0.000 description 10
- 239000007788 liquid Substances 0.000 description 9
- 230000006872 improvement Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000002002 slurry Substances 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
- F16C33/76—Sealings of ball or roller bearings
- F16C33/80—Labyrinth sealings
Abstract
The invention discloses a kind of associated sealing arrangement for bearings, main shaft including body and lateral arrangement, on the inside of the seal face of body bearing is arranged between main shaft, the seal face of body is equipped with cavity, cavity is equipped with the chamber passed through for main shaft, the Moving plate that at least two panels can be rotated jointly with it is arranged on the indoor main shaft of chamber, the dynamic spacer being arranged on main shaft between adjacent two Moving plate, quantity and the position quiet spacer of annular corresponding with Moving plate are equipped in chamber, the quiet disk opposite with dynamic spacer is equipped between two neighboring quiet spacer, the quiet disk internal diameter ＞ of quiet spacer internal diameter ＞ Moving plate outer diameters ＞ move spacer outer diameter, the lower part of quiet spacer is equipped with notch, cavity lower part is equipped with the channel for connecting chamber in body or outside body by notch.Associated sealing arrangement for bearings provided by the invention can be flowed out to outside body into the mud rainwater that the indoor oil of chamber can enter back into body or enter chamber, and sealing effect is good.
Description
Technical field
The present invention relates to bearing seal field more particularly to a kind of associated sealing arrangement for bearings.
Background technology
Labyrinth seal one is a kind common sealing means, the sealing principle of labyrinth seal be processed in shaft or axle sleeve it is recessed
Boss rank, sealing ring are processed as thin tooth form.Tooth is staggeredly corresponding with boss, and each tooth top forms narrow radial clearance, each two
Toroidal cavity is formed between sealing tooth.In this way, labyrinth seal channel is just by the throttle clearance that many is arranged in order and expansion cavity
Composition, they force fluid flowing to become tortuous changeable, generate throttling, and one of gap forms primary seal with a cavity, add
If multi-stage sealed reach sealing effect, because labyrinth seal is a kind of discontiguous sealing means, sealed relative to other contacts
Such as mechanical seal, oil sealing sealing, service life to be grown more.
But major part labyrinth seal at present is only used for slowing down the speed that medium rushes down leakage, such as Chinese patent
CN103711879B, CN106641204A, CN102032349B, therefore these labyrinth seals are only used for that medium is allowed to rush down on a small quantity
The situation of leakage, if a small amount of medium rushes down leakage and may lead to serious consequence, if the leakage rate of lubricating oil is more than permissible value or extraneous dirt
The amount that dye object enters in machine is more than permissible value, then cannot use labyrinth seal.Therefore, existing labyrinth seal is in some use conditions
Lower sealing effect cannot be met the requirements.
Invention content
The object of the present invention is to provide a kind of associated sealing arrangement for bearings, and sealing effect is good, can be again into the indoor oil of chamber
It can be flowed out to outside body into the liquid mediums such as body or the mud rainwater for entering chamber.
To achieve the above object, the present invention provides a kind of associated sealing arrangement for bearings, the main shaft including body and lateral arrangement, machine
Bearing is arranged on the inside of the seal face of body between main shaft, the seal face of body is equipped with cavity, and cavity is equipped with for leading
The chamber that axis passes through is arranged with the Moving plate that at least two panels can be rotated jointly with it on the indoor main shaft of chamber, is also arranged on main shaft
Dynamic spacer between adjacent two Moving plate, chamber is interior equipped with quantity and the position quiet spacer of annular corresponding with Moving plate, adjacent
The quiet disk opposite with dynamic spacer is equipped between two quiet spacers, the quiet disk internal diameter ＞ of quiet spacer internal diameter ＞ Moving plate outer diameters ＞ are moved outside spacer
Diameter, the lower part of quiet spacer are equipped with notch, and cavity lower part is equipped with connect chamber in body or outside body by the notch
Channel.
As a further improvement on the present invention, the chamber being fixed on body seal face is equipped between the body and cavity
Housing, cavity are axis hole clearance fit with cavity seat, and cavity can be adjusted with respect to the axial displacement of cavity seat between the two by being equipped with
Regulating mechanism.
As the further improvement of the present invention, the cavity includes the position-arresting disk between bearing and chamber, the limit
Position disk internal diameter ＜ Moving plate outer diameters, cavity side are equipped with positioned opposite with position-arresting disk and the quiet spacer and quiet chuck clamping exist jointly
Chamber lid between the two.
As the further improvement of the present invention, the main shaft, which is equipped with, to be used to dynamic spacer and Moving plate being fixed on main shaft
Fixing device.
As the further improvement of the present invention, the fixing device includes the dynamic spacer and Moving plate being clamped in the two
Between the first sleeve and second sleeve, the first sleeve and second sleeve be set on the main shaft.
It is monolithic construction between the quiet disk and quiet spacer adjacent thereto as the further improvement of the present invention.
It is monolithic construction between the dynamic spacer and Moving plate adjacent thereto as the further improvement of the present invention.
As the further improvement of the present invention, the quiet spacer includes the first quiet spacer and the second quiet spacer, and first is quiet
For split structure between spacer and the cavity, the second quiet spacer is adjacent with the position-arresting disk, the second quiet spacer and cavity it
Between be monolithic construction.
Advantageous effect
Compared with prior art, it is the advantages of associated sealing arrangement for bearings of the invention：
The 1st, several Moving plates are set on main shaft, and the outer diameter of Moving plate is more than the internal diameter of quiet disk, in such body lubricating oil or
External liquids pollutant (both substances are referred to as liquid medium below) would not due to the blocking by Moving plate and quiet disk
It crosses sealing position directly to arrive outside body or in body, (refers to closest to liquid and be situated between when liquid medium touches first order Moving plate
The Moving plate in matter source, and so on), liquid medium is thrown toward outside, big portion under the action of the high-speed rotating centrifugal force of Moving plate
Divide liquid medium that can be adhered on the quiet spacer on the outside of Moving plate, and the channel row set from the notch and cavity that quiet spacer is set
It is outer or flow back in machine to go out machine, only small part liquid medium crosses quiet disk and touches second level Moving plate, and Moving plate is again in the second level
Secondary to repeat this process flowed back in machine or outside discharge machine, series is more, and sealing effect is better；
2nd, since the outer diameter of Moving plate is more than the internal diameter of quiet disk, Moving plate is arranged to split from main shaft and quiet disk is set
It is split on Cheng Kecong cavitys, it is simple in structure, be conducive to repair assembling；
3rd, make cavity that can be moved axially on cavity seat, the purpose is to：The requirement in assembling of some equipment can adjust main shaft
Axial position, if the axial position of quiet disk is fixed nonadjustable, it is possible to cause Moving plate and quiet disk contact and
Equipment damage is caused, if setting makes the structure that cavity is axially movable, it is possible to adjust the gap between Moving plate and quiet disk, prevent
Arresting disc and the contact of quiet disk damage；
4th, under some process conditions, Moving plate and dynamic spacer is integrally formed, quiet disk and quiet spacer are made one
It is whole to advantageously reduce cost；
5th, the moving component not contacted with each other in sealing device, therefore there is no component wear problem, the service life of component
It will greatly prolong；
6th, the quantity of Moving plate is more, and sealing effect naturally can be better, but the space that sealing device needs also can be bigger, and increases
It adds and causes this, in practical applications, after setting 3 Moving plates, sealing effect is very reliable, therefore common Moving plate number
Amount is 2-5.
By following description and with reference to attached drawing, the present invention will become more fully apparent, these attached drawings are used to explain the present invention
Embodiment.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the sectional view of 1 associated sealing arrangement for bearings of embodiment；
Fig. 2 is the sectional view of cavity in example 1；
Fig. 3 is the stereogram that spacer is moved in embodiment 1；
Fig. 4 is the stereogram of Moving plate in embodiment 1；
Fig. 5 is the stereogram of quiet spacer in embodiment 1；
Fig. 6 is the stereogram of quiet disk in embodiment 1；
Fig. 7 is the sectional view of 2 associated sealing arrangement for bearings of embodiment；
Fig. 8 is the stereogram of cavity in embodiment 2；
Fig. 9 is the stereogram that quiet disk and quiet spacer are formed integrally in embodiment 2；
Figure 10 is the stereogram that Moving plate and dynamic spacer are formed integrally in embodiment 2；
Figure 11 is the sectional view of 3 associated sealing arrangement for bearings of embodiment；
Figure 12 is the sectional view of cavity in embodiment 3.
Specific embodiment
The embodiment of the present invention is described referring now to attached drawing.
Embodiment 1
The present invention specific embodiment as shown in Figures 1 to 6, a kind of associated sealing arrangement for bearings, including body 101 and laterally
The main shaft 103 of arrangement is arranged with bearing 102, the sealed end of body 101 between the seal face inside of body 101 and main shaft 103
It is fixed with cavity 100 on face, cavity 100 is equipped with the chamber 1001 passed through for main shaft 103, on the main shaft 103 in chamber 1001
At least two panels is arranged with also to be arranged between adjacent two Moving plate 107 on main shaft 103 with the Moving plate 107 that it is rotated jointly
Dynamic spacer 106, quantity and position are equipped in chamber 1001 with the 107 quiet spacer 104 of corresponding annular of Moving plate, it is two neighboring quiet
The quiet disk 105 opposite with dynamic spacer 106 is equipped between spacer 104, in quiet 104 internal diameter ＞ Moving plates of spacer, the 107 quiet disks 105 of outer diameter ＞
Diameter ＞ moves 106 outer diameter of spacer, and the lower part of quiet spacer 104 is equipped with notch 112, and 100 lower part of cavity is equipped with will by the notch 112
The channel 113 connected in chamber 1001 and body 101.One end of channel 113 with notch 112 with being connected, channel 113 it is another
End in body 101 with being connected.
In the present embodiment, the quantity of Moving plate 107 and quiet spacer 104 is two, the quantity of quiet disk 105 and dynamic spacer 106
It is one.Moving plate 107, dynamic spacer 106 and quiet disk 105 are annular in shape.
The cavity 100 includes the position-arresting disk 1002 between bearing 102 and chamber 1001,1002 internal diameter of position-arresting disk
107 outer diameter of ＜ Moving plates, 100 side of cavity are equipped with positioned opposite and jointly by the quiet spacer 104 and quiet disk with position-arresting disk 1002
105 clamp chamber lid 109 therebetween.Main shaft 103 runs through the middle part of chamber lid 109.It is between position-arresting disk 1002 and cavity 100
Integrally formed monolithic construction.
Sealing ring is equipped between cavity 100 and body 101.
The main shaft 103 is equipped with for dynamic spacer 106 and Moving plate 107 to be fixed on the fixing device on main shaft 103
108。
The fixing device 108 includes the dynamic spacer 106 and Moving plate 107 clamping the first sleeve therebetween
1081 and second sleeve 1082, the first sleeve 1081 and second sleeve 1082 be set on the main shaft 103.Wherein, second
Sleeve 1082 is sandwiched between two closest bearings 102 and Moving plate 107, and the first sleeve 1081 runs through chamber lid 109.
The present embodiment is suitable for the sealing of thin oil lubricant, and operation principle is as follows：It is a small amount of dilute when main shaft 103 rotates
Oil is logical to be crossed non-disconnectable quiet disk 1002 and enters in chamber 1001 and contact first order Moving plate 107 due to splashing, on Moving plate 107
Thin oil is thrown out of and adheres on the quiet spacer 104 of the first order under the influence of centrifugal force, under the effect of gravity, most thin oils
The channel 113 of 100 bottom of cavity setting is flowed into from the notch 112 on quiet spacer 104 and is flowed back in body 101, it is only micro- in this way
Amount thin oil can touch the Moving plate 107 of the second level, and can repeat this process for throwing away and flowing back to, and pass through secondary or more time
This process just leaks out body 101 almost without thin oil.Fig. 1 arrows represent that thin oil flows back into the direction in body.
Embodiment 2
As shown in Fig. 7 to 10, the difference lies in 100 lower part of cavity is equipped with through the notch 112 with embodiment 1
The channel 113 that will be connected outside chamber 1001 and body 101.One end of channel 113 with notch 112 with being connected, channel 113 it is another
It is connected outside one end and body 101.
In the present embodiment, the quantity of Moving plate 107 and quiet spacer 104 is three, the quantity of quiet disk 105 and dynamic spacer 106
It is two.
Fixing device 108 includes the dynamic spacer 106 and Moving plate 107 clamping 1081 He of the first sleeve therebetween
Second sleeve 1082, further includes the 3rd sleeve 1083 being threadedly coupled with main shaft 103, and the first sleeve 1081 is located at 3rd sleeve
Between 1083 and outermost Moving plate 107.
The cavity seat 110 that pressing is scheduled on 101 seal face of body, cavity are equipped between the body 101 and cavity 100
100 with cavity seat 110 be axis hole clearance fit, and axial displacement of the cavity 100 with respect to cavity seat 110 can be adjusted between the two by being equipped with
Regulating mechanism 111.Regulating mechanism 111 can be adjusting bolt.By regulating mechanism 111, cavity 100 can be made in cavity seat
It is moved axially on 110, when axial displacement occurs when main shaft 103 assembles in this way, can cavity be made by regulating mechanism 111
100 make corresponding axial movement, and anti-arresting disc 107 and quiet disk 105 contact.
It is monolithic construction between one quiet disk 105 and adjacent thereto quiet spacer 104.
It is monolithic construction between one dynamic spacer 106 and adjacent thereto Moving plate 107.
The present embodiment is suitable for having the operating modes such as mud, the rainwater of splashing, such as slurry outside dry oil lubrication, particularly body
Pump, wind-driven generator etc..Its seal operation principle is as follows：When the shaft rotates, the mud outside body 101, rainwater, there is small part
It can enter in the chamber 1001 of cavity 100, and touch the first order Moving plate 107 of the rightmost side, it is under the action of the centrifugal force, big absolutely
Part can be thrown out of and be adhered on the quiet spacer 104 of the quiet first order, and under gravity under the quiet spacer 104 of the first order
The notch 112 in portion escapes and enter the channel 113 set on cavity 100 and discharges；There is micro mud that can touch the second level to move
Disk 107, under same purpose, only more micro mud can touch third level Moving plate 107, so as to avoid bearing
102 are polluted by mud.Arrow represents that the liquid mediums such as mud rainwater flow out to extra-organismal direction in Fig. 7.
Embodiment 3
As shown in FIG. 11 and 12, the difference lies in the quiet spacer 104 includes the first quiet spacer with embodiment 1
1041 and the second quiet spacer 1042, it is split structure between the first quiet spacer 1041 and the cavity 100, the second quiet spacer
1042 is adjacent with the position-arresting disk 1002, is monolithic construction between the second quiet spacer 1042 and cavity 100.
In the present embodiment, the quantity of Moving plate 107 is two, the quantity of the first quiet 1041 and second quiet spacer 1042 of spacer
It it is one, the quantity of quiet disk 105 and dynamic spacer 106 is one.
Above in association with most preferred embodiment, invention has been described, but the invention is not limited in implementations disclosed above
Example, and modification, equivalent combinations that various essence according to the present invention carry out should be covered.
Claims (8)
1. a kind of associated sealing arrangement for bearings, the main shaft (103) including body (101) and lateral arrangement, the seal face of body (101)
Bearing (102) is arranged between inside and main shaft (103), the seal face of body (101) is equipped with cavity (100), feature
It is, cavity (100) is equipped with the chamber (1001) passed through for main shaft (103), is arranged on the main shaft (103) in chamber (1001)
Have at least two panels can with the Moving plate (107) that it is rotated jointly, be also arranged on main shaft (103) positioned at adjacent two Moving plate (107) it
Between dynamic spacer (106), quantity and the position quiet spacer of annular corresponding with Moving plate (107) (104) are equipped in chamber (1001),
The quiet disk (105) opposite with dynamic spacer (106), quiet spacer (104) internal diameter ＞ Moving plates are equipped between two neighboring quiet spacer (104)
(107) the quiet disks of outer diameter ＞ (105) internal diameter ＞ moves spacer (106) outer diameter, and the lower part of quiet spacer (104) is equipped with notch (112), cavity
(100) be equipped with will be in chamber (1001) and body (101) or what body (101) connected outside leads to by the notch (112) for lower part
Road (113).
2. a kind of associated sealing arrangement for bearings according to claim 1, which is characterized in that the body (101) and cavity (100)
Between be equipped with and be fixed on cavity seat (110) on body (101), cavity (100) is axis hole clearance fit with cavity seat (110),
Regulating mechanism (111) of the cavity (100) with respect to the axial displacement of cavity seat (110) can be adjusted by being equipped between the two.
3. a kind of associated sealing arrangement for bearings according to claim 1 or 2, which is characterized in that the cavity (100) is including being located at
Position-arresting disk (1002) between bearing (102) and chamber (1001), position-arresting disk (1002) internal diameter ＜ Moving plates (107) outer diameter, chamber
Body (100) side is equipped with positioned opposite with position-arresting disk (1002) and is jointly clamped in the quiet spacer (104) and quiet disk (105)
Chamber lid (109) between the two.
4. a kind of associated sealing arrangement for bearings according to claim 1 or 2, which is characterized in that the main shaft (103), which is equipped with, to be used
In the fixing device (108) being fixed on dynamic spacer (106) and Moving plate (107) on main shaft (103).
5. a kind of associated sealing arrangement for bearings according to claim 4, which is characterized in that the fixing device (108) is including inciting somebody to action
The dynamic spacer (106) and Moving plate (107) clamp the first sleeve (1081) and second sleeve (1082) therebetween, and first
Sleeve (1081) and second sleeve (1082) are set on the main shaft (103).
6. a kind of associated sealing arrangement for bearings according to claim 1 or 2, which is characterized in that the quiet disk (105) and with its phase
It is monolithic construction between adjacent quiet spacer (104).
7. a kind of associated sealing arrangement for bearings according to claim 1 or 2, which is characterized in that the dynamic spacer (106) and and its
It is monolithic construction between adjacent Moving plate (107).
8. a kind of associated sealing arrangement for bearings according to claim 3, which is characterized in that the quiet spacer (104) is including first
Quiet spacer (1041) and the second quiet spacer (1042), are split type knot between the first quiet spacer (1041) and the cavity (100)
Structure, the second quiet spacer (1042) is adjacent with the position-arresting disk (1002), is whole between the second quiet spacer (1042) and cavity (100)
Body formula structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810124057.0A CN108223589B (en) | 2018-02-07 | 2018-02-07 | Bearing sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810124057.0A CN108223589B (en) | 2018-02-07 | 2018-02-07 | Bearing sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108223589A true CN108223589A (en) | 2018-06-29 |
| CN108223589B CN108223589B (en) | 2023-10-31 |
Family
ID=62670930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810124057.0A Active CN108223589B (en) | 2018-02-07 | 2018-02-07 | Bearing sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108223589B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111516868A (en) * | 2020-05-12 | 2020-08-11 | 天峋创新（北京）科技有限公司 | Dustproof mechanism of automatic inclinator |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7935867U1 (en) * | 1979-12-20 | 1980-03-27 | Fag Kugelfischer Georg Schaefer & Co, 8720 Schweinfurt | Sealed rolling bearing |
| US4810108A (en) * | 1986-07-11 | 1989-03-07 | Minebea Kabushiki-Kaisha | Bearing |
| JPH06133491A (en) * | 1992-10-13 | 1994-05-13 | Nagano Nippon Densan Kk | Spindle motor |
| EP0894990A1 (en) * | 1997-07-31 | 1999-02-03 | Minebea Kabushiki Kaisha | Double seal bearing |
| EP0930444A2 (en) * | 1998-01-20 | 1999-07-21 | Minebea Co., Ltd. | A compound bearing assembly |
| US20050238271A1 (en) * | 2004-04-23 | 2005-10-27 | Rainer Schafer | Bearing assembly of a crop conveying and/or crop processing element for a harvesting machine |
| CN102203444A (en) * | 2008-11-04 | 2011-09-28 | 沃依特专利有限责任公司 | Device for sealing a bearing lubricated with a liquid lubricant |
| CN203067539U (en) * | 2012-12-03 | 2013-07-17 | 江苏航天动力机电有限公司 | Novel rolling bearing structure |
| CN208040934U (en) * | 2018-02-07 | 2018-11-02 | 广州市拓道新材料科技有限公司 | A kind of associated sealing arrangement for bearings |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201500356A (en) * | 2013-04-12 | 2015-01-01 | Lilly Co Eli | Dihydropyrido pyrimidine compounds |
-
2018
- 2018-02-07 CN CN201810124057.0A patent/CN108223589B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7935867U1 (en) * | 1979-12-20 | 1980-03-27 | Fag Kugelfischer Georg Schaefer & Co, 8720 Schweinfurt | Sealed rolling bearing |
| US4810108A (en) * | 1986-07-11 | 1989-03-07 | Minebea Kabushiki-Kaisha | Bearing |
| JPH06133491A (en) * | 1992-10-13 | 1994-05-13 | Nagano Nippon Densan Kk | Spindle motor |
| EP0894990A1 (en) * | 1997-07-31 | 1999-02-03 | Minebea Kabushiki Kaisha | Double seal bearing |
| EP0930444A2 (en) * | 1998-01-20 | 1999-07-21 | Minebea Co., Ltd. | A compound bearing assembly |
| US20050238271A1 (en) * | 2004-04-23 | 2005-10-27 | Rainer Schafer | Bearing assembly of a crop conveying and/or crop processing element for a harvesting machine |
| CN102203444A (en) * | 2008-11-04 | 2011-09-28 | 沃依特专利有限责任公司 | Device for sealing a bearing lubricated with a liquid lubricant |
| CN203067539U (en) * | 2012-12-03 | 2013-07-17 | 江苏航天动力机电有限公司 | Novel rolling bearing structure |
| CN208040934U (en) * | 2018-02-07 | 2018-11-02 | 广州市拓道新材料科技有限公司 | A kind of associated sealing arrangement for bearings |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111516868A (en) * | 2020-05-12 | 2020-08-11 | 天峋创新（北京）科技有限公司 | Dustproof mechanism of automatic inclinator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108223589B (en) | 2023-10-31 |
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