CN112797076A - Ball bearing and preparation process thereof - Google Patents
Ball bearing and preparation process thereof Download PDFInfo
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- CN112797076A CN112797076A CN202110126467.0A CN202110126467A CN112797076A CN 112797076 A CN112797076 A CN 112797076A CN 202110126467 A CN202110126467 A CN 202110126467A CN 112797076 A CN112797076 A CN 112797076A
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- Prior art keywords
- bearing
- ball
- inner ring
- sleeve
- bearing sleeve
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- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 18
- 238000003756 stirring Methods 0.000 claims abstract description 15
- 238000005498 polishing Methods 0.000 claims abstract description 12
- 238000003801 milling Methods 0.000 claims abstract description 9
- 239000002131 composite material Substances 0.000 claims abstract description 8
- 238000005259 measurement Methods 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 238000012545 processing Methods 0.000 claims abstract description 3
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 238000003754 machining Methods 0.000 claims description 11
- 238000000227 grinding Methods 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 238000003723 Smelting Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- 239000011247 coating layer Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 229910000984 420 stainless steel Inorganic materials 0.000 claims description 4
- 229910052684 Cerium Inorganic materials 0.000 claims description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 4
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000010410 layer Substances 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 239000011777 magnesium Substances 0.000 claims description 4
- 229910052758 niobium Inorganic materials 0.000 claims description 4
- 239000010955 niobium Substances 0.000 claims description 4
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 4
- 238000010791 quenching Methods 0.000 claims description 4
- 230000000171 quenching effect Effects 0.000 claims description 4
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 4
- 150000002910 rare earth metals Chemical class 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- 239000011734 sodium Substances 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 3
- 239000007888 film coating Substances 0.000 claims 1
- 238000009501 film coating Methods 0.000 claims 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 4
- 238000005336 cracking Methods 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract 2
- 230000008018 melting Effects 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 241001062472 Stokellia anisodon Species 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- F16C33/64—Special methods of manufacture
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a ball bearing and a preparation process thereof, which comprises a bearing bush, wherein the preparation material of the bearing bush is placed into a container, a stirrer is started to stir slowly at the stirring speed of 210 rpm for 18-22 minutes, then the materials are fully and uniformly mixed for standby application, the mixed materials are placed into a 1200-1250-DEG melting furnace for melting, and finally the materials are poured into a mold. According to the ball bearing and the preparation process thereof, after the bearing sleeve and the bearing inner ring which are manufactured by processing the composite metal are continuously processed by using a lathe and a milling machine, the wear resistance of the bearing sleeve and the bearing inner ring in the using process is better, and the phenomena of cracking and the like can not occur in the using process, the balls are smelted at high temperature, after polishing and measurement, the deviation of the roundness cannot exceed 0.008 micrometer, the diameter deviation cannot exceed 0.0008 micrometer, the finally formed ball bearing is not easy to rust, and the ball bearing has extremely high hardness and better wear resistance.
Description
Technical Field
The invention relates to the technical field of ball bearings, in particular to a ball bearing and a preparation process thereof.
Background
With the progress of society and the development of technology, ball bearings are used in many devices and equipment at present, and mainly reduce friction force in the power transmission process and improve the transmission efficiency of mechanical power in a rolling mode;
1. generally, the compactness of the conventional ball bearing is not high in the production process, so that the wear resistance of the ball bearing is poor;
2. meanwhile, the bearing sleeve is usually made of high-carbon chromium bearing steel, and the bearing sleeve is rusted in the long-term use process, so that the bearing is clamped and the like.
Disclosure of Invention
The invention aims to provide a ball bearing and a preparation process thereof, and aims to solve the problems that the ball bearing is poor in wear resistance due to low compactness in the production process and is rusted in the long-term use process, so that the bearing is blocked.
In order to achieve the purpose, the invention provides the following technical scheme: a ball bearing comprises a bearing sleeve, wherein balls are arranged in the bearing sleeve, the surface of each ball is provided with the ball sleeve, and the inner side of the bearing sleeve is provided with a bearing inner ring.
A ball bearing preparation technology comprises the steps of putting a manufacturing material of a bearing sleeve into a container, starting a stirrer to stir slowly, wherein the stirring speed is 210 rpm, the stirring can be carried out fully and uniformly for standby after stirring for 18-22 minutes, putting the mixed material into a 1200-1250-DEG smelting furnace to smelt, finally pouring the smelted material into a mold, cooling and demolding to obtain the bearing sleeve and a bearing inner ring, measuring the size, putting the bearing sleeve on a lathe to carry out finish machining, then putting the bearing sleeve on the surface of a milling machine to process, arranging a coating layer on the inner side of the bearing inner ring, and finally forming a finished product; SUS420(3Cr13)420 stainless steel is subjected to high-temperature smelting, poured into a mold, cooled to form balls, taken out of the mold, the balls are subjected to mold overflow removal, heated to about 810 ℃, and finally polished by adding a rare earth polishing powder-dioxide pot on the surfaces of the balls, finally measured, the balls are placed between a bearing sleeve and a bearing inner ring after measurement, and the ball sleeve is arranged on the surfaces of the balls to prevent the balls from generating position deviation.
Preferably, the deviation of the roundness of the balls cannot exceed 0.008 micrometer, and the deviation of the diameter cannot exceed 0.0008 micrometer.
Preferably, the bearing sleeve and the bearing inner ring are subjected to mold removal through a lathe after demolding.
Preferably, the bearing sleeve is fixed and ground through the excircle positioning and clamping device, and an inner hole of the bearing sleeve is ground to finally obtain a finished bearing sleeve product.
Preferably, in order to avoid cracking during quenching during heating, the balls are generally cooled to 60 degrees in oil and then heated to about 170 degrees.
Preferably, the bearing sleeve and the bearing inner ring are roughly machined twice on a lathe, and the surfaces and the inner sides of the bearing sleeve and the bearing inner ring are respectively ground.
Preferably, the bearing sleeve and the bearing inner ring are subjected to finish machining on a milling machine, and the finish machining comprises a flat grinding process and an external grinding process.
Preferably, the coating film layer of the bearing inner ring is a titanium carbonitride coating.
Preferably, the bearing sleeve and the bearing inner ring are made of composite metal, and the composite metal is made of aluminum, magnesium, sodium, cerium, iron, niobium, perovskite and tungsten carbide alloy.
Compared with the prior art, the invention has the beneficial effects that: the ball bearing and the preparation process thereof,
1. after the bearing sleeve and the bearing inner ring which are manufactured by processing the composite metal are continuously processed by using a lathe and a milling machine, the bearing sleeve and the bearing inner ring have better wear resistance in the using process and do not crack and the like in the using process;
2. after the ball is subjected to high-temperature smelting, grinding, polishing and measuring, the deviation of the roundness cannot exceed 0.008 micrometer, the deviation of the diameter cannot exceed 0.0008 micrometer, and the finally formed ball bearing is not easy to rust, has extremely high hardness and good wear resistance.
Drawings
FIG. 1 is a front view of the structure of the present embodiment;
fig. 2 is a schematic structural flow diagram of the present embodiment.
In the figure: 1. a bearing housing; 2. a ball bearing; 3. a ball sleeve; 4. and (4) bearing inner rings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a ball bearing comprises a bearing sleeve 1, wherein balls 2 are arranged in the bearing sleeve 1, a ball sleeve 3 is arranged on the surface of each ball 2, and a bearing inner ring 4 is arranged on the inner side of the bearing sleeve 1.
A ball bearing preparation technology, put the preparation material of the bearing housing 1 into container, and start the agitator and stir slowly, the stirring speed is 210 rpm, can carry on the abundant homogeneous mixing for use after stiring for 18-22 minutes, put the mixed material into 1200 and add 1250 degrees of smelting pot to smelt, pour into the mould finally, demold and get bearing housing 1 and bearing inner race 4 after cooling, put the bearing housing 1 into lathe and carry on the finish machining after measuring the good size, put the surface of the milling machine and process, mount the coating film layer in the inboard of the bearing inner race 4, form the finished product finally; SUS420(3Cr13)420 stainless steel is subjected to high-temperature smelting and then poured into a mold, the ball 2 is formed after cooling, the ball 2 is taken out of the mold, casting mold overflow of the ball 2 is removed, the ball 2 is heated to about 810 ℃, finally a rare earth polishing powder oxidizing bowl is added on the surface of the ball 2 for polishing, finally measurement is carried out, the ball 2 is placed between a bearing sleeve 1 and a bearing inner ring 4 after measurement, and the ball sleeve 3 is arranged on the surface of the ball 2 to prevent the ball 2 from generating position deviation.
The roundness deviation of the ball 2 in the embodiment cannot exceed 0.008 micron, and the diameter deviation cannot exceed 0.0008 micron, so that the ball 2 can better roll in the bearing sleeve 1 and the bearing inner ring 4, and the friction force between the ball 2 and the bearing inner ring is reduced;
after demoulding, the bearing sleeve 1 and the bearing inner ring 4 are subjected to mold removal through a lathe to remove mold overflow, so that foreign matters such as burrs of the bearing sleeve 1 and the bearing inner ring 4 can be conveniently eliminated, and the precision of parts is improved through polishing;
the bearing sleeve 1 is fixed and ground through the excircle positioning and clamping device, and the inner hole of the bearing sleeve 1 is ground to finally obtain a finished product of the bearing sleeve 1, so that the bearing sleeve 1 is more practical to polish;
in order to avoid cracks during quenching when the ball 2 is heated, the ball 2 is generally placed in oil to be cooled to 60 ℃, and then heated to about 170 ℃, so that the ball 2 cannot crack during high-temperature heating;
the bearing sleeve 1 and the bearing inner ring 4 are roughly machined twice on a lathe, and the surfaces and the inner sides of the bearing sleeve 1 and the bearing inner ring 4 are respectively polished, so that the interiors of the bearing sleeve 1 and the bearing inner ring 4 are smoother, and the friction force is reduced conveniently;
the bearing sleeve 1 and the bearing inner ring 4 are finely machined on a milling machine, and the finish machining comprises a flat grinding process and an external cylindrical grinding process, so that the bearing sleeve 1 and the bearing inner ring 4 are smoother;
the coating film layer of the bearing inner ring 4 is a titanium carbonitride coating layer, so that the inner side of the bearing inner ring 4 and the balls 2 are smoother;
the bearing sleeve 1 and the bearing inner ring 4 are made of composite metal, the composite metal is made of aluminum, magnesium, sodium, cerium, iron, niobium, perovskite and tungsten carbide alloy, so that the bearing sleeve 1 and the bearing inner ring 4 are made of harder materials, and the bearing sleeve 1 and the bearing inner ring 4 cannot rust after being used for a long time.
The working principle is as follows: according to the figure 1-2, the materials of the bearing sleeve 1 and the bearing inner ring 4 comprise aluminum, magnesium, sodium, cerium, iron, niobium, perovskite and tungsten carbide alloy, the materials are placed into a container, a stirrer is started to stir slowly, the stirring speed is 210 rpm, the materials can be fully and uniformly mixed for standby after stirring for 18-22 minutes, the mixed materials are placed into a furnace with the temperature of 1200 plus 1250 ℃ to be smelted, finally the smelted materials are poured into a mold, the bearing sleeve 1 and the bearing inner ring 4 are obtained after cooling and demolding, casting mold overflow is removed through a lathe after demolding of the bearing sleeve 1 and the bearing inner ring 4, foreign matters such as burrs of the bearing sleeve 1 and the bearing inner ring 4 can be conveniently eliminated, the precision of parts is improved through polishing, the bearing sleeve 1 and the bearing inner ring 4 are roughly processed twice on the lathe, the surface and the inner side of the bearing sleeve 1 and the bearing inner ring 4 are respectively polished, the interior of the bearing sleeve 1 and the bearing inner ring 4, the friction force is conveniently reduced, the bearing sleeve 1 and the bearing inner ring 4 are subjected to finish machining on a milling machine after the size is measured, the finish machining comprises a flat grinding process and an outer circle grinding process, the bearing sleeve 1 and the bearing inner ring 4 are more smooth, the bearing sleeve 1 is fixed and ground through an outer circle positioning and clamping device, an inner hole of the bearing sleeve 1 is ground, and a finished bearing sleeve 1 product is finally obtained, so that the bearing sleeve 1 is more practical to polish, a coating layer is arranged on the inner side of the bearing inner ring 4, the coating layer of the bearing inner ring 4 is a titanium carbonitride coating, so that the inner side of the bearing inner ring 4 and the balls 2 are more smooth, and a finished product is finally;
according to the method shown in the figure 1-2, SUS420(3Cr13)420 stainless steel is smelted at high temperature and poured into a mould, the ball 2 is formed after cooling, the ball 2 is taken out of the mould, casting mould overflow of the ball 2 is removed, the ball 2 is heated to about 810 ℃, the ball 2 is generally placed in oil and cooled to 60 ℃ during heating so as to avoid cracks during quenching, the ball is heated to about 170 ℃ so as to prevent the ball 2 from cracking during high-temperature heating, a rare earth polishing powder dioxide pot is added on the surface of the ball 2 for polishing, finally measurement is carried out, the roundness deviation of the ball 2 cannot exceed 0.008 micron, the diameter deviation cannot exceed 0.0008 micron so that the ball 2 can better roll in a bearing sleeve 1 and an inner bearing ring 4 so as to reduce the friction force between the bearing sleeve 1 and the inner bearing ring 4, the ball 2 is placed between the bearing sleeve 1 and the inner bearing ring 4 after measurement, the ball sleeve 3 is arranged on the surface of the ball 2, so that the ball 2 is prevented from position deviation, the finally formed ball bearing is not easy to rust, and the ball bearing has extremely high hardness and better wear resistance.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A ball bearing, includes bearing housing (1), its characterized in that: the bearing is characterized in that the inside of the bearing sleeve (1) is provided with a ball (2), the surface of the ball (2) is provided with a ball sleeve (3), and the inner side of the bearing sleeve (1) is provided with a bearing inner ring (4).
2. A ball bearing preparation technology is characterized in that: putting the manufacturing material of the bearing sleeve (1) into a container, starting a stirrer for slow stirring, wherein the stirring speed is 210 rpm, the stirring can be fully and uniformly mixed for standby after stirring for 18-22 minutes, putting the mixed material into a furnace with the temperature of 1200 plus 1250 ℃ for smelting, finally pouring the mixed material into a mold, cooling and demolding to obtain the bearing sleeve (1) and a bearing inner ring (4), measuring the size, putting the bearing sleeve (1) on a lathe for finish machining, then putting the bearing sleeve on the surface of a milling machine for processing, arranging a coating layer on the inner side of the bearing inner ring (4), and finally forming a finished product; SUS420(3Cr13)420 stainless steel is subjected to high-temperature smelting and poured into a mold, the ball (2) is formed after cooling, the ball (2) is taken out of the mold, the casting mold overflow of the ball (2) is removed, the ball (2) is heated to about 810 ℃, rare earth polishing powder (a dioxide bowl) is added on the surface of the ball (2) for polishing, measurement is finally carried out, the ball (2) is placed between a bearing sleeve (1) and a bearing inner ring (4) after measurement, the ball sleeve (3) is arranged on the surface of the ball (2), and position deviation of the ball (2) is prevented.
3. A process for manufacturing a ball bearing according to claim 2, wherein: the roundness deviation of the ball (2) cannot exceed 0.008 micron, and the diameter deviation cannot exceed 0.0008 micron.
4. A process for manufacturing a ball bearing according to claim 2, wherein: and (3) removing mold overflow by a lathe after demolding the bearing sleeve (1) and the bearing inner ring (4).
5. A process for manufacturing a ball bearing according to claim 2, wherein: the bearing sleeve (1) is fixed and ground through the excircle positioning and clamping device, and the inner hole of the bearing sleeve (1) is ground to finally obtain a finished product of the bearing sleeve (1).
6. A process for manufacturing a ball bearing according to claim 2, wherein: in order to avoid cracks during quenching of the balls (2) during heating, the balls (2) are generally placed in oil and cooled to 60 degrees, and then heated to about 170 degrees.
7. A process for manufacturing a ball bearing according to claim 2, wherein: and (3) roughly machining the bearing sleeve (1) and the bearing inner ring (4) twice on a lathe, and respectively polishing the surface and the inner side of the bearing sleeve (1) and the bearing inner ring (4).
8. A process for manufacturing a ball bearing according to claim 2, wherein: and the bearing sleeve (1) and the bearing inner ring (4) are subjected to finish machining on a milling machine, and the finish machining comprises a flat grinding process and an external cylindrical grinding process.
9. A process for manufacturing a ball bearing according to claim 2, wherein: the film coating layer of the bearing inner ring (4) is a titanium carbonitride coating layer.
10. A process for manufacturing a ball bearing according to claim 2, wherein: the bearing sleeve (1) and the bearing inner ring (4) are made of composite metal, and the composite metal is made of aluminum, magnesium, sodium, cerium, iron, niobium, perovskite and tungsten carbide alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110126467.0A CN112797076A (en) | 2021-01-29 | 2021-01-29 | Ball bearing and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110126467.0A CN112797076A (en) | 2021-01-29 | 2021-01-29 | Ball bearing and preparation process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112797076A true CN112797076A (en) | 2021-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110126467.0A Pending CN112797076A (en) | 2021-01-29 | 2021-01-29 | Ball bearing and preparation process thereof |
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| Country | Link |
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| CN (1) | CN112797076A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001012359A1 (en) * | 1999-08-19 | 2001-02-22 | Nitinol Technologies, Inc. | Nitinol ball bearing element and process for making |
| CN103331456A (en) * | 2013-06-26 | 2013-10-02 | 上海斐赛轴承科技有限公司 | Machining method of rolling bearing formed by whole and precise hard turning and molding of sleeve ring |
| CN104313495A (en) * | 2014-08-27 | 2015-01-28 | 南京创贝高速传动机械有限公司 | High-wear-resistance bearing sleeve and preparation technology thereof |
| CN108799336A (en) * | 2018-06-28 | 2018-11-13 | 安庆银亿轴承有限公司 | A kind of processing technology of bearing ball |
| CN111644570A (en) * | 2019-10-16 | 2020-09-11 | 襄阳振本传动设备有限公司 | Production method of front and rear ring bearing inner rings |
-
2021
- 2021-01-29 CN CN202110126467.0A patent/CN112797076A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001012359A1 (en) * | 1999-08-19 | 2001-02-22 | Nitinol Technologies, Inc. | Nitinol ball bearing element and process for making |
| CN103331456A (en) * | 2013-06-26 | 2013-10-02 | 上海斐赛轴承科技有限公司 | Machining method of rolling bearing formed by whole and precise hard turning and molding of sleeve ring |
| CN104313495A (en) * | 2014-08-27 | 2015-01-28 | 南京创贝高速传动机械有限公司 | High-wear-resistance bearing sleeve and preparation technology thereof |
| CN108799336A (en) * | 2018-06-28 | 2018-11-13 | 安庆银亿轴承有限公司 | A kind of processing technology of bearing ball |
| CN111644570A (en) * | 2019-10-16 | 2020-09-11 | 襄阳振本传动设备有限公司 | Production method of front and rear ring bearing inner rings |
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Application publication date: 20210514 |