CN110486384A - A kind of bearing convenient for filling lubricating oil - Google Patents
A kind of bearing convenient for filling lubricating oil Download PDFInfo
- Publication number
- CN110486384A CN110486384A CN201910667914.6A CN201910667914A CN110486384A CN 110486384 A CN110486384 A CN 110486384A CN 201910667914 A CN201910667914 A CN 201910667914A CN 110486384 A CN110486384 A CN 110486384A
- Authority
- CN
- China
- Prior art keywords
- ring body
- outside
- lubricating oil
- annular
- fixed
- 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
- 239000010687 lubricating oil Substances 0.000 title claims abstract description 30
- 210000004907 gland Anatomy 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 238000003475 lamination Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 7
- 238000005461 lubrication Methods 0.000 abstract description 4
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/581—Raceways; Race rings integral with other parts, e.g. with housings or machine elements such as shafts or gear wheels
-
- 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
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
-
- 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
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/6681—Details of distribution or circulation inside the bearing, e.g. grooves on the cage or passages in the rolling elements
-
- 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
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a kind of bearings convenient for filling lubricating oil, the two sides of the inner ring body are respectively and fixedly provided with the second gland, the second rubber ring is fixed on the outside of second gland, tabs are fixed on the inside of second rubber ring, in the tabs insertion annular groove, raised plate is fixed on the outside of the inner ring body, annular chamber is offered in the outer ring body, the through slot being connected with annular chamber is offered on the inside of the outer ring body, the raised plate is inserted in annular chamber, pouring orifice is offered on the outside of the outer ring body, the pouring orifice is connected with annular chamber, the outside screw of the pouring orifice is connected with sealing cover.The bearing passes through lubricating oil is intracavitary from pouring orifice injection annular, raised plate rotation is driven as inner ring body rotates, so that the lubricating oil on the outside of raised plate is guided to the outside of inner ring body from guide groove, so that keeping enough lubricating oil in roller loose slot, improve roller lubrication effect, bearing wear is reduced, bearing service life is improved.
Description
Technical field
The present invention relates to technical field of bearings, specially a kind of bearing convenient for filling lubricating oil.
Background technique
Bearing is a kind of important spare part in contemporary mechanical equipment.Its major function is to support mechanical rotary body, is reduced
Coefficient of friction in its motion process, and guarantee its rotating accuracy.The linear motion bearing form of early stage is exactly in row's skid plate
One row's rod of lower placement.Modern linear motion bearing uses same working principle, only replaces roller with ball sometimes.
Simplest swivel bearing is axle sleeve bearing, it is the bushing being clipped between wheel and wheel shaft.It is this to design then quilt
Rolling bearing substitution exactly substitutes original bushing with many cylindrical rollers, and each rolling element is just as an individual vehicle
Wheel.
In the slower mechanical equipment of the operatings such as industry, bearing is easy to happen lubricating oil under the state of working long hours and lacks
It loses, causes the increase of bearing friction power wear phenomenon occur, reduce the service life of bearing, but existing bearing is not easy to add
Add lubricating oil, lubricating oil, which is unevenly distributed, to be effectively lubricated bearing, for this purpose, proposing a kind of axis convenient for filling lubricating oil
It holds.
Summary of the invention
The purpose of the present invention is to provide a kind of bearings convenient for filling lubricating oil, to solve to propose in above-mentioned background technique
The problem of.
To achieve the above object, the invention provides the following technical scheme: a kind of bearing convenient for filling lubricating oil, including interior
Circle body and outer ring body, the both sides external of the inner ring body and the inside two sides of outer ring body offer roller loose slot, described interior
The roller being fitted and connected in roller loose slot on the outside of circle body, the two sides of the outer ring body are respectively and fixedly provided with the first gland,
It is fixed with the first rubber ring on the outside of first gland, annular ring, the annular are fixed on the inside of first rubber ring
Annular groove is offered on the inside of circle, the two sides of the inner ring body are respectively and fixedly provided with the second gland, and the outside of second gland is fixed
There is the second rubber ring, tabs are fixed on the inside of second rubber ring, the tabs are inserted into annular groove, the inner ring
It is fixed with raised plate on the outside of body, annular chamber is offered in the outer ring body, is offered on the inside of the outer ring body and annular chamber
The through slot being connected, the raised plate are inserted in annular chamber, and pouring orifice, the pouring orifice are offered on the outside of the outer ring body
It is connected with annular chamber, the outside screw of the pouring orifice is connected with sealing cover.
Preferably, the quantity of the pouring orifice is no less than two, and the inner wall of the pouring orifice is equipped with spiral lamination.
Preferably, the both sides external of the raised plate offers guide groove, and the quantity of the guide groove is no less than five.
Preferably, first gland is fixed with first flap close to the side of roller.
Preferably, second gland is fixed with second flap close to the side of roller.
Preferably, the both sides external of the tabs is equipped with annular protrusion, and the outside of annular protrusion and annular groove
Inner wall is fitted and connected.
Compared with prior art, the beneficial effects of the present invention are: the bearing is by injecting annular from pouring orifice for lubricating oil
It is intracavitary, raised plate rotation is driven as inner ring body rotates, so that the lubricating oil on the outside of raised plate is guided to inner ring body from guide groove
Then outside flows into roller loose slot, then the lubricating oil of spilling roller loose slot is back in annular chamber under the effect of gravity,
Effect is circulated to be formed, so that keeping enough lubricating oil in roller loose slot, roller lubrication effect is improved, reduces axis
Abrasion is held, bearing service life is improved.
Detailed description of the invention
Fig. 1 is schematic cross-sectional view of the invention；
Fig. 2 is schematic view of the front view of the invention；
Fig. 3 is ring cavity structure schematic diagram of the invention；
Fig. 4 is the area Tu3Zhong A enlarged structure schematic diagram of the invention；
Fig. 5 is raised panel construction schematic diagram of the invention.
In figure: 1, inner ring body；2, outer ring body；3, roller；4, the first gland；5, the first rubber ring；6, the second gland；7,
Two rubber rings；8, annular chamber；9, pouring orifice；10, sealing cover；11, through slot；12, raised plate；13, guide groove；14, annular ring；15,
Annular groove；16, tabs；17, annular protrusion；18, roller loose slot；19, first flap；20, second flap.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment
Fig. 1-5 is please referred to, the present invention provides a kind of technical solution: a kind of bearing convenient for filling lubricating oil, including inner ring
Body 1 and outer ring body 2, the both sides external of the inner ring body 1 and the inside two sides of outer ring body 2 offer roller loose slot 18, institute
The outside for stating inner ring body 1 is fitted and connected the roller 3 in roller loose slot 18, and the two sides of the outer ring body 2 are respectively and fixedly provided with
First gland 4, the outside of first gland 4 are fixed with the first rubber ring 5, and the inside of first rubber ring 5 is fixed with ring
Shape circle 14, the inside of annular ring 14 offer annular groove 15, and the two sides of the inner ring body 1 are respectively and fixedly provided with the second gland 6, institute
The outside for stating the second gland 6 is fixed with the second rubber ring 7, and the inside of second rubber ring 7 is fixed with tabs 16, described convex
Playing piece 16 is inserted into annular groove 15, and the outside of the inner ring body 1 is fixed with raised plate 12, offers annular in the outer ring body 2
Chamber 8, the inside of the outer ring body 2 offer the through slot 11 being connected with annular chamber 8, and the raised plate 12 is inserted in annular chamber 8
Interior, the outside of the outer ring body 2 offers pouring orifice 9, and the pouring orifice 9 is connected with annular chamber 8, outside the pouring orifice 9
Side is threaded with sealing cover 10.
Specifically, the quantity of the pouring orifice 9 is no less than two, the inner wall of the pouring orifice 9 is equipped with spiral lamination；Pouring orifice
9 for bearing injection and removal of lubricant, spiral lamination to be convenient for connection sealing cover 10.The both sides external of the raised plate 12 is opened
Equipped with guide groove 13, the quantity of the guide groove 13 is no less than five；Guide groove 13 is used to carry out water conservancy diversion to lubricating oil.First gland
4 are fixed with first flap 19 close to the side of roller 3, and first flap 19 is for carrying out blocking limit to roller 3.Second pressure
Lid 6 is fixed with second flap 20 close to the side of roller 3；Second flap 20 is for carrying out blocking limit to roller 3.The protrusion
The both sides external of piece 16 is equipped with annular protrusion 17, and the outside of annular protrusion 17 and the inner wall of annular groove 15 are fitted and connected；Ring
The leakproofness between annular groove 15 and tabs 16 can be improved in shape protrusion 17.
Lubricating oil is injected annular chamber 8 from pouring orifice 9 in use, opening sealing cover 10 by working principle or structural principle
Interior, lubricating oil flows into roller loose slot 18 from through slot 11, and in bearing rotation, inner ring body 1 rotates, the lubrication in annular chamber 8
Oil can be adhered to 12 outside of raised plate, drive raised plate 12 to rotate as inner ring body 1 rotates, so that the lubrication in 12 outside of raised plate
Oil is guided to the outside of inner ring body 1 from guide groove 13, then flows into roller loose slot 18, then overflows roller under the effect of gravity and live
The lubricating oil of dynamic slot 18 is back in annular chamber 8, circulates effect to be formed, so that keeping in roller loose slot 18 enough
Lubricating oil, improve 3 lubricant effect of roller, reduce bearing wear, improve bearing service life.Tabs 16 are inserted into annular groove 15
It is interior, while enabling to inner ring body 1 and outer ring body 2 that can rotate freely, reduces lubricating oil and leak out, while can be to prevent
Dirt.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of bearing convenient for filling lubricating oil, including inner ring body and outer ring body, it is characterised in that: the outside of the inner ring body
Two sides and the inside two sides of outer ring body offer roller loose slot, have been fitted and connected on the outside of the inner ring body living positioned at roller
Roller in dynamic slot, the two sides of the outer ring body are respectively and fixedly provided with the first gland, are fixed with the first rubber on the outside of first gland
Rubber ring is fixed with annular ring on the inside of first rubber ring, annular groove, the inner ring body is offered on the inside of annular ring
Two sides be respectively and fixedly provided with the second gland, be fixed with the second rubber ring on the outside of second gland, second rubber ring it is interior
Side is fixed with tabs, and the tabs are inserted into annular groove, and raised plate, the outer ring body are fixed on the outside of the inner ring body
Annular chamber is inside offered, the through slot being connected with annular chamber is offered on the inside of the outer ring body, the raised plate is inserted in ring
Shape is intracavitary, and pouring orifice is offered on the outside of the outer ring body, and the pouring orifice is connected with annular chamber, the outside of the pouring orifice
It is threaded with sealing cover.
2. a kind of bearing convenient for filling lubricating oil according to claim 1, it is characterised in that: the quantity of the pouring orifice
No less than two, the inner wall of the pouring orifice is equipped with spiral lamination.
3. a kind of bearing convenient for filling lubricating oil according to claim 1, it is characterised in that: the outside of the raised plate
Two sides offer guide groove, and the quantity of the guide groove is no less than five.
4. a kind of bearing convenient for filling lubricating oil according to claim 1, it is characterised in that: first gland is close
The side of roller is fixed with first flap.
5. a kind of bearing convenient for filling lubricating oil according to claim 1, it is characterised in that: second gland is close
The side of roller is fixed with second flap.
6. a kind of bearing convenient for filling lubricating oil according to claim 1, it is characterised in that: the outside of the tabs
Two sides are equipped with annular protrusion, and the outside of annular protrusion and the inner wall of annular groove are fitted and connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910667914.6A CN110486384B (en) | 2019-07-23 | 2019-07-23 | Bearing convenient for filling lubricating oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910667914.6A CN110486384B (en) | 2019-07-23 | 2019-07-23 | Bearing convenient for filling lubricating oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110486384A true CN110486384A (en) | 2019-11-22 |
| CN110486384B CN110486384B (en) | 2021-02-23 |
Family
ID=68548053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910667914.6A Active CN110486384B (en) | 2019-07-23 | 2019-07-23 | Bearing convenient for filling lubricating oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110486384B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111795066A (en) * | 2020-08-28 | 2020-10-20 | 苏州市华菁智能科技有限公司 | Robot bearing with inner ring stop block |
| CN113027925A (en) * | 2021-04-16 | 2021-06-25 | 南昌工程学院 | Self-sealing lubricating high-temperature rolling bearing and manufacturing method thereof |
| CN113446320A (en) * | 2020-03-24 | 2021-09-28 | 湖州博洛尼科技有限公司 | Water-cooling sealed bearing box |
| CN114321159A (en) * | 2022-01-17 | 2022-04-12 | 无锡阳光精机股份有限公司 | High-end equipment is made with high-speed accurate heavy load main shaft bearing |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4597679A (en) * | 1985-10-03 | 1986-07-01 | Coppus Engineering Corporation | Apparatus for lubricating a bearing assembly |
| JPH03113119A (en) * | 1989-09-25 | 1991-05-14 | Skf Ind Trading Dev Co Bv | Roller bearing with lubricant pump and its device |
| DE4124387A1 (en) * | 1991-07-23 | 1993-01-28 | Josef Fey Lamellenringe | Lamella ring lip seal for rolling bearings - has elastic loose sealing element clipped on ring support attachment |
| US20040071376A1 (en) * | 2001-02-19 | 2004-04-15 | Ronald Greubel | Rotary bearing with lubricant passage arrangement, and threaded drive with rotary bearing-supported threaded nut |
| CN201347960Y (en) * | 2008-12-26 | 2009-11-18 | 大连全鑫轧机轴承制造有限公司 | Double-row cylindrical roller bearing with internal block and external block for rolling mill |
| RU101133U1 (en) * | 2010-09-16 | 2011-01-10 | Юрий Кузьмич Яшков | LABYRINTH SEALING OF A ROLLING BEARING |
| CN202732690U (en) * | 2012-08-20 | 2013-02-13 | 襄阳宇清传动科技有限公司 | Backing bearing |
| CN204628265U (en) * | 2015-05-15 | 2015-09-09 | 湖州杭电支承有限公司 | A kind of sealed type roller bearing |
| CN204628312U (en) * | 2015-04-30 | 2015-09-09 | 德清德曼汽车零部件有限公司 | Tapered roller bearing lubricating structure |
| CN208457025U (en) * | 2018-07-06 | 2019-02-01 | 大连光扬轴承制造有限公司 | A kind of sealed double-row full-complement cylinder roller bearing with spherical outside surface |
| CN208982487U (en) * | 2018-11-08 | 2019-06-14 | 常州市钧达轴承有限公司 | A kind of high leakproofness double row tapered roller bearing |
-
2019
- 2019-07-23 CN CN201910667914.6A patent/CN110486384B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4597679A (en) * | 1985-10-03 | 1986-07-01 | Coppus Engineering Corporation | Apparatus for lubricating a bearing assembly |
| JPH03113119A (en) * | 1989-09-25 | 1991-05-14 | Skf Ind Trading Dev Co Bv | Roller bearing with lubricant pump and its device |
| DE4124387A1 (en) * | 1991-07-23 | 1993-01-28 | Josef Fey Lamellenringe | Lamella ring lip seal for rolling bearings - has elastic loose sealing element clipped on ring support attachment |
| US20040071376A1 (en) * | 2001-02-19 | 2004-04-15 | Ronald Greubel | Rotary bearing with lubricant passage arrangement, and threaded drive with rotary bearing-supported threaded nut |
| CN201347960Y (en) * | 2008-12-26 | 2009-11-18 | 大连全鑫轧机轴承制造有限公司 | Double-row cylindrical roller bearing with internal block and external block for rolling mill |
| RU101133U1 (en) * | 2010-09-16 | 2011-01-10 | Юрий Кузьмич Яшков | LABYRINTH SEALING OF A ROLLING BEARING |
| CN202732690U (en) * | 2012-08-20 | 2013-02-13 | 襄阳宇清传动科技有限公司 | Backing bearing |
| CN204628312U (en) * | 2015-04-30 | 2015-09-09 | 德清德曼汽车零部件有限公司 | Tapered roller bearing lubricating structure |
| CN204628265U (en) * | 2015-05-15 | 2015-09-09 | 湖州杭电支承有限公司 | A kind of sealed type roller bearing |
| CN208457025U (en) * | 2018-07-06 | 2019-02-01 | 大连光扬轴承制造有限公司 | A kind of sealed double-row full-complement cylinder roller bearing with spherical outside surface |
| CN208982487U (en) * | 2018-11-08 | 2019-06-14 | 常州市钧达轴承有限公司 | A kind of high leakproofness double row tapered roller bearing |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113446320A (en) * | 2020-03-24 | 2021-09-28 | 湖州博洛尼科技有限公司 | Water-cooling sealed bearing box |
| CN111795066A (en) * | 2020-08-28 | 2020-10-20 | 苏州市华菁智能科技有限公司 | Robot bearing with inner ring stop block |
| CN113027925A (en) * | 2021-04-16 | 2021-06-25 | 南昌工程学院 | Self-sealing lubricating high-temperature rolling bearing and manufacturing method thereof |
| CN113027925B (en) * | 2021-04-16 | 2022-08-23 | 南昌工程学院 | Self-sealing lubricating high-temperature rolling bearing and manufacturing method thereof |
| CN114321159A (en) * | 2022-01-17 | 2022-04-12 | 无锡阳光精机股份有限公司 | High-end equipment is made with high-speed accurate heavy load main shaft bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110486384B (en) | 2021-02-23 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A bearing that is easy to add lubricating oil to Granted publication date: 20210223 Pledgee: Qianshan Anhui rural commercial bank Limited by Share Ltd. Pledgor: ANHUI QIANXI PRECISE BEARING MANUFACTORY Co.,Ltd. Registration number: Y2024980002028 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |