CN112360872A - Low-temperature cryogenic ball bearing of liquid nitrogen pump - Google Patents
Low-temperature cryogenic ball bearing of liquid nitrogen pump Download PDFInfo
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- CN112360872A CN112360872A CN202011324606.2A CN202011324606A CN112360872A CN 112360872 A CN112360872 A CN 112360872A CN 202011324606 A CN202011324606 A CN 202011324606A CN 112360872 A CN112360872 A CN 112360872A
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- ring
- liquid nitrogen
- ball bearing
- nitrogen pump
- groove
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- 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
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- 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
-
- 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
- F16C19/525—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to temperature and heat, e.g. insulation
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- 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
- F16C33/38—Ball cages
- F16C33/3818—Ball cages formed of unconnected segments
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- 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
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- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
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- 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
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/40—Application independent of particular apparatuses related to environment, i.e. operating conditions
- F16C2300/52—Application independent of particular apparatuses related to environment, i.e. operating conditions low temperature, e.g. cryogenic temperature
Abstract
The invention discloses a low-temperature cryogenic ball bearing of a liquid nitrogen pump, which comprises a basic positioning ring, wherein one side of the surface of the basic positioning ring is fixedly connected with ten stable limiting blocks, the number of the stable limiting blocks is ten, the ten stable limiting blocks are symmetrically and uniformly arranged, one side of the surface of each stable limiting block is provided with a through groove, and the surface of an external reinforcing ring is provided with a protective groove. This cryogenic ball bearing of liquid nitrogen pump, the device can be through the space that basic holding ring and inside contact ring constitute, effectual low temperature operational environment completely cuts off, keep apart the capsule simultaneously through setting up between basic holding ring and inside contact ring, keep apart the capsule and can effectually absorb and neutralize the low temperature, and use impaired back for a long time keeping apart the capsule, can be with keeping apart the capsule from connecting the standing groove separation on insulated column surface, make things convenient for staff's quick replacement, make the bearing remain comparatively stable isolation ability all the time.
Description
Technical Field
The invention relates to the technical field of bearings, in particular to a low-temperature cryogenic ball bearing of a liquid nitrogen pump.
Background
The liquid nitrogen temperature is below-186 ℃, and is the optimal medium for high-speed deep cooling and quick freezing. The high-speed cryogenic equipment is generally used for quick refrigeration, quick freezing, product cold treatment, mechanical installation and the like, and the working principle of the equipment is that liquid nitrogen is pumped into an evaporator through a liquid nitrogen pump, gasified nitrogen is sucked into a compression pump, and the liquid nitrogen pump runs at a high speed to continuously work, so that the refrigeration function is realized. The liquid nitrogen pump is a heart of refrigeration equipment and is a mechanical device for processing liquid nitrogen, and a bearing used in the liquid nitrogen pump is the heart of the liquid nitrogen pump. When the liquid nitrogen pump works, the compressor is driven to work by the motor, the bearing used in the compressor is a high-speed bearing, and the rotating speed is more than 6000 RPM.
The bearing has certain lubrication condition when running at high speed, the lubrication of the bearing is usually lubricated by oil or grease, but the temperature of liquid nitrogen is extremely low, if the protection is not good enough, the lubricating grease is easy to solidify in a low-temperature environment, once the lubricating grease solidifies, the lubrication effect is greatly reduced, the bearing can generate a large amount of scraps during running, and the normal running of the bearing is further influenced.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a low-temperature cryogenic ball bearing of a liquid nitrogen pump, which solves the problems that lubricating grease is very easy to solidify in a low-temperature environment, once the lubricating grease solidifies, the lubricating effect is greatly reduced, a large amount of scraps are generated during the operation of the bearing, and the normal operation of the bearing is further influenced.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a cryogenic ball bearing of low temperature of liquid nitrogen pump, includes basic holding ring, the restriction piece is stabilized to one side fixedly connected with on basic holding ring surface, the quantity of stabilizing the restriction piece sets up to ten, ten the restriction piece symmetry is even to be set up, one side on stable restriction piece surface has been seted up through the groove, internal surface swing joint through the groove has the roll ball, one side swing joint on roll ball surface has outside beaded finish, the protection groove has been seted up on the surface of outside beaded finish, one side fixedly connected with connecting block on outside beaded finish surface, the quantity of connecting block sets up to a plurality of, the thread groove has been seted up to the inner wall of connecting block, one side swing joint on connecting block surface has the external protection circle.
Preferably, the surface of the external protection ring is provided with a matching groove.
Preferably, a screw rod penetrates through the inner surface of the matching groove, and a circular handle is fixedly connected to the top end of the screw rod.
Preferably, one side of the surface of the basic positioning ring is fixedly connected with a connecting isolation column.
Preferably, the surface of the connecting isolation column is provided with a placing groove, and one side of the inner surface of the placing groove is movably connected with an isolation capsule.
Preferably, one end of the connection isolation column is fixedly connected with an inner contact ring, and the inner surface of the inner contact ring is fixedly connected with a friction arc-shaped block.
Preferably, the primary positioning ring comprises a primary protective layer having a structural reinforcing layer fixedly attached to one side of the primary protective layer.
Preferably, one side of the structure reinforcing layer is fixedly connected with a stable pressure bearing layer.
(III) advantageous effects
The invention provides a low-temperature cryogenic ball bearing of a liquid nitrogen pump. Compared with the prior art, the method has the following beneficial effects:
(1) the cryogenic ball bearing of the liquid nitrogen pump is characterized in that a connecting isolation column is fixedly connected with one side of the surface of a basic positioning ring, a placing groove is formed in the surface of the connecting isolation column, an isolating capsule is movably connected with one side of the inner surface of the placing groove, an internal contact ring is fixedly connected with one end of the connecting isolation column, a friction arc block is fixedly connected with the inner surface of the internal contact ring, the isolating capsule can effectively absorb and neutralize low temperature by the combined arrangement of the connecting isolation column, the placing groove, the isolating capsule, the internal contact ring and the basic positioning ring through the space formed by the basic positioning ring and the internal contact ring, and the isolating capsule is arranged between the basic positioning ring and the internal contact ring and can be separated from the placing groove on the surface of the connecting isolation column after the isolating capsule is damaged after being used for a long time, make things convenient for staff's quick replacement for the bearing remains comparatively stable isolation ability all the time.
(2) The cryogenic ball bearing of the liquid nitrogen pump is characterized in that an external reinforcing ring is movably connected to one side of the surface of a rolling ball, a protective groove is formed in the surface of the external reinforcing ring, a connecting block is fixedly connected to one side of the surface of the external reinforcing ring, the number of the connecting blocks is set to be a plurality, a threaded groove is formed in the inner wall of the connecting block, an external protection ring is movably connected to one side of the surface of the connecting block, a matching groove is formed in the surface of the external protection ring, a screw rod penetrates through the inner surface of the matching groove, a circular handle is fixedly connected to the top end of the screw rod, the isolation capability of the whole bearing to low temperature can be further improved through the combined arrangement of the external reinforcing ring and the external protection ring, and the external protection ring can be rapidly detached from the surface of the bearing through the connecting block, the threaded groove, the quick operation of staff is facilitated, the related structure is simple, and the operation is not easy to make mistakes.
(3) The low-temperature cryogenic ball bearing of the liquid nitrogen pump is characterized in that one side of the surface of a basic positioning ring is fixedly connected with stable limiting blocks, the number of the stable limiting blocks is ten, the ten stable limiting blocks are symmetrically and uniformly arranged, one side of the surface of each stable limiting block is provided with a through groove, a rolling ball is movably connected with the inner surface of the through groove, one side of the surface of the rolling ball is movably connected with an external reinforcing ring, once the bearing is not lubricated properly in operation through the arrangement of a protective groove, when the rolling ball in the bearing rubs out a large amount of scraps with the external reinforcing ring, the scraps can move between interlayers of the external reinforcing ring and the external protective ring under the centrifugal action, the phenomenon that the scraps excessively influence the integral stable operation of the bearing is avoided, the connection stability of the bearing and a working shaft can be improved through the arrangement of the friction arc-shaped blocks, and through the combined arrangement of the basic, the strength and the stability degree of the bearing during operation can be effectively improved, and the reliability of the surface structure of the basic positioning ring can be effectively improved.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is an enlarged view of a portion of the structure of FIG. 1 at A according to the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1 at B according to the present invention;
FIG. 4 is an enlarged view of a portion of the structure of FIG. 1 at C;
figure 5 is a cross-sectional view of the basic positioning ring structure of the present invention.
In the drawings, 1, a basic positioning ring; 101. a primary protective layer; 102. a structural reinforcement layer; 103. stabilizing the pressure bearing layer; 2. a stable limiting block; 3. passing through the slot; 4. a rolling ball; 5. an outer reinforcement ring; 6. a protective groove; 7. connecting blocks; 8. a thread groove; 9. an external guard ring; 10. a matching groove; 11. a screw shaft; 12. a circular handle; 13. connecting the isolation column; 14. a placement groove; 15. isolating the capsule; 16. an inner contact ring; 17. the arc-shaped block is rubbed.
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. 1-5, an embodiment of the present invention provides a technical solution: a cryogenic ball bearing of a liquid nitrogen pump comprises a basic positioning ring 1, one side of the surface of the basic positioning ring 1 is fixedly connected with stable limiting blocks 2, the number of the stable limiting blocks 2 is ten, the ten stable limiting blocks 2 are symmetrically and uniformly arranged, one side of the surface of each stable limiting block 2 is provided with a through groove 3, a rolling ball 4 is movably connected with the inner surface of each groove 3, one side of the surface of each rolling ball 4 is movably connected with an external reinforcing ring 5, the surface of each external reinforcing ring 5 is provided with a protection groove 6, through the arrangement of the protection grooves 6, once the bearing is not lubricated properly in operation, when a large amount of chips are rubbed by the rolling ball 4 and the external reinforcing ring 5 in the bearing, the chips can run between interlayers of the external reinforcing ring 5 and the external protection ring 9 under the centrifugal action, the influence of the excessive chips on the overall stable operation of the bearing is avoided, and through the arrangement of arc-shaped, the connection stability of the bearing and the working shaft can be improved.
One side fixedly connected with connecting block 7 on 5 surfaces of outside beaded finish, the quantity of connecting block 7 sets up to a plurality of, thread groove 8 has been seted up to the inner wall of connecting block 7, one side swing joint on 7 surfaces of connecting block has outside guard circle 9, matching groove 10 has been seted up on the surface of outside guard circle 9, the internal surface of matching groove 10 runs through there is screw pole 11, the circular handle 12 of top fixedly connected with of screw pole 11, set up through the combination of outside beaded finish 5 and outside guard circle 9, promotion bearing that can step forward is whole to microthermal insulating ability, and through connecting block 7, thread groove 8, matching groove 10, the combination setting of screw pole 11 and circular handle 12, can be when the device is maintained, the quick dismantlement of outside guard circle 9 from the bearing surface, make things convenient for staff's fast operation, and relevant structure is comparatively simple, the operation is difficult for ma.
One side of the surface of the basic positioning ring 1 is fixedly connected with a connecting isolation column 13, the surface of the connecting isolation column 13 is provided with a placing groove 14, one side of the inner surface of the placing groove 14 is movably connected with an isolation capsule 15, one end of the connecting isolation column 13 is fixedly connected with an inner contact ring 16, the inner surface of the inner contact ring 16 is fixedly connected with a friction arc-shaped block 17, the device can effectively isolate the low-temperature working environment through the space formed by the basic positioning ring 1 and the inner contact ring 16 by the combined arrangement of the connecting isolation column 13, the placing groove 14, the isolation capsule 15, the inner contact ring 16 and the basic positioning ring 1, meanwhile, the isolation capsule 15 can effectively absorb and neutralize the low temperature by arranging the isolation capsule 15 between the basic positioning ring 1 and the inner contact ring 16, and the isolation capsule 15 can be separated from the placing groove 14 on the surface of the isolation column 13 after the isolation capsule 15 is damaged, make things convenient for staff's quick replacement for the bearing remains comparatively stable isolation ability all the time.
The material of the isolation capsule 15 is high temperature resistant elastic resin.
When the device is used, sufficient lubricating oil is added into a bearing, a liquid nitrogen pump is started, an external protection ring 9 is fixed, a related working shaft is inserted into the bearing, the surface of the working shaft is attached to a friction arc-shaped block 17 on one side of an internal contact ring 16, then the liquid nitrogen pump bearing starts to work, the internal contact ring 16 drives a placing groove 14, an isolation capsule 15 and a basic positioning ring 1 to rotate, the isolation capsule 15 isolates low temperature, the basic positioning ring 1 drives a stable limiting block 2 and rolls on the inner wall of an external reinforcing ring 5 through a groove 3 and a rolling ball 4 at high speed, the lubricating oil on the surface of the rolling ball 4 has poor effect, the rolling ball 4 and the external reinforcing ring 5 rub to generate debris, the debris mixed lubricating oil flows to the external reinforcing ring 5 through the protection groove 6 in the high-speed rotating process, the lubricating oil containing the debris can be filtered and reused by an external filter element, and air between the, can be effectual go on further completely isolated to low temperature, when the piece is too much to when the external protection circle 9 surface has the breakage, rotatory circular handle 12, unscrew the lead screw 11 from thread groove 8 in connecting block 7, then outwards take out old external protection circle 9, after changing new external protection circle 9, reinstall the device, after the device used completely, recover the device.
And those not described in detail in this specification are well within the skill of those in the art.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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 (8)
1. The cryogenic ball bearing of the liquid nitrogen pump, including basic set ring (1), its characteristic lies in: one side of the surface of the basic positioning ring (1) is fixedly connected with a stable limiting block (2), the number of the stable limiting blocks (2) is ten, the ten stable limiting blocks (2) are symmetrically and uniformly arranged, a through groove (3) is arranged on one side of the surface of the stable limiting block (2), a rolling ball (4) is movably connected with the inner surface of the through groove (3), one side of the surface of the rolling ball (4) is movably connected with an external reinforcing ring (5), a protective groove (6) is arranged on the surface of the external reinforcing ring (5), a connecting block (7) is fixedly connected with one side of the surface of the external reinforcing ring (5), the number of the connecting blocks (7) is a plurality, the inner wall of each connecting block (7) is provided with a thread groove (8), one side of the surface of the connecting block (7) is movably connected with an external protective ring (9).
2. The cryogenic ball bearing of the liquid nitrogen pump according to claim 1, characterized in that: the surface of the external protection ring (9) is provided with a matching groove (10).
3. The cryogenic ball bearing of the liquid nitrogen pump according to claim 1, characterized in that: the inner surface of the matching groove (10) is penetrated with a screw rod (11), and the top end of the screw rod (11) is fixedly connected with a circular handle (12).
4. The cryogenic ball bearing of the liquid nitrogen pump according to claim 1, characterized in that: one side of the surface of the basic positioning ring (1) is fixedly connected with a connecting isolation column (13).
5. The cryogenic ball bearing of the liquid nitrogen pump according to claim 4, characterized in that: a placing groove (14) is formed in the surface of the connecting isolation column (13), and an isolation capsule (15) is movably connected to one side of the inner surface of the placing groove (14).
6. The cryogenic ball bearing of the liquid nitrogen pump according to claim 1, characterized in that: one end of the connecting isolation column (13) is fixedly connected with an inner contact ring (16), and the inner surface of the inner contact ring (16) is fixedly connected with a friction arc block (17).
7. The cryogenic ball bearing of the liquid nitrogen pump according to claim 1, characterized in that: the basic positioning ring (1) comprises a basic protection layer (101), and a structural reinforcement layer (102) is fixedly connected to one side of the basic protection layer (101).
8. The cryogenic ball bearing of the liquid nitrogen pump according to claim 1, characterized in that: one side of the structure reinforcing layer (102) is fixedly connected with a stable pressure bearing layer (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011324606.2A CN112360872A (en) | 2020-11-24 | 2020-11-24 | Low-temperature cryogenic ball bearing of liquid nitrogen pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011324606.2A CN112360872A (en) | 2020-11-24 | 2020-11-24 | Low-temperature cryogenic ball bearing of liquid nitrogen pump |
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| Publication Number | Publication Date |
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| CN112360872A true CN112360872A (en) | 2021-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011324606.2A Withdrawn CN112360872A (en) | 2020-11-24 | 2020-11-24 | Low-temperature cryogenic ball bearing of liquid nitrogen pump |
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|---|---|---|---|---|
| JP2000249150A (en) * | 1999-03-03 | 2000-09-12 | Nsk Ltd | Electric erosion preventive rolling bearing |
| US20060153483A1 (en) * | 2005-01-11 | 2006-07-13 | Honeywell International Inc. | Preloaded duplex ball bearing design |
| CN107701584A (en) * | 2017-10-24 | 2018-02-16 | 无锡民联汽车零部件有限公司 | Jing Yin noise reducing type bearing |
| CN207769918U (en) * | 2017-12-04 | 2018-08-28 | 江西石城县永盛选矿设备制造有限公司 | A kind of wear-resistant ball grinder |
| CN208719146U (en) * | 2018-09-13 | 2019-04-09 | 洛阳百思特精密机械制造有限公司 | A kind of diameter axial direction composite cylindrical roller bearing |
| CN208816652U (en) * | 2018-08-01 | 2019-05-03 | 广东思晨智能科技有限公司 | A kind of hollow reducer protection bearing |
| CN109958715A (en) * | 2019-04-29 | 2019-07-02 | 山东省机械设计研究院 | A kind of high speed roller bearing and its manufacturing method |
| CN209245056U (en) * | 2018-10-31 | 2019-08-13 | 河北佳顺不锈钢轴承制造有限公司 | A kind of stainless steel deep groove ball bearing |
| CN209818529U (en) * | 2019-03-14 | 2019-12-20 | 泉州市德源轴承实业有限公司 | Agricultural machinery bearing |
| CN210178428U (en) * | 2019-07-29 | 2020-03-24 | 大唐郓城发电有限公司 | Steam turbine thrust bearing |
-
2020
- 2020-11-24 CN CN202011324606.2A patent/CN112360872A/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000249150A (en) * | 1999-03-03 | 2000-09-12 | Nsk Ltd | Electric erosion preventive rolling bearing |
| US20060153483A1 (en) * | 2005-01-11 | 2006-07-13 | Honeywell International Inc. | Preloaded duplex ball bearing design |
| CN107701584A (en) * | 2017-10-24 | 2018-02-16 | 无锡民联汽车零部件有限公司 | Jing Yin noise reducing type bearing |
| CN207769918U (en) * | 2017-12-04 | 2018-08-28 | 江西石城县永盛选矿设备制造有限公司 | A kind of wear-resistant ball grinder |
| CN208816652U (en) * | 2018-08-01 | 2019-05-03 | 广东思晨智能科技有限公司 | A kind of hollow reducer protection bearing |
| CN208719146U (en) * | 2018-09-13 | 2019-04-09 | 洛阳百思特精密机械制造有限公司 | A kind of diameter axial direction composite cylindrical roller bearing |
| CN209245056U (en) * | 2018-10-31 | 2019-08-13 | 河北佳顺不锈钢轴承制造有限公司 | A kind of stainless steel deep groove ball bearing |
| CN209818529U (en) * | 2019-03-14 | 2019-12-20 | 泉州市德源轴承实业有限公司 | Agricultural machinery bearing |
| CN109958715A (en) * | 2019-04-29 | 2019-07-02 | 山东省机械设计研究院 | A kind of high speed roller bearing and its manufacturing method |
| CN210178428U (en) * | 2019-07-29 | 2020-03-24 | 大唐郓城发电有限公司 | Steam turbine thrust bearing |
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Application publication date: 20210212 |