CN112360873A - Dustproof deep groove ball bearing with double-layer sealing cover - Google Patents
Dustproof deep groove ball bearing with double-layer sealing cover Download PDFInfo
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- CN112360873A CN112360873A CN202011150742.4A CN202011150742A CN112360873A CN 112360873 A CN112360873 A CN 112360873A CN 202011150742 A CN202011150742 A CN 202011150742A CN 112360873 A CN112360873 A CN 112360873A
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- groove
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- double
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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
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/16—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
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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
- 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
- F16C33/7803—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings
- F16C33/7806—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings for spherical roller bearings
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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
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/82—Arrangements for electrostatic or magnetic action against dust or other particles
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
Abstract
The invention belongs to the field of deep groove ball bearings, and particularly relates to a dustproof deep groove ball bearing with a double-layer sealing cover, aiming at the problems that the existing deep groove ball bearing is poor in dustproof and sealing effects, fixed in structure, inconvenient to assemble and disassemble and easy to damage. The deep groove ball bearing is reasonable in structure, convenient to operate, good in dust prevention and sealing effects, flexible in structure, convenient to disassemble and assemble the dust prevention cover plate and not prone to damage.
Description
Technical Field
The invention relates to the technical field of deep groove ball bearings, in particular to a dustproof deep groove ball bearing with a double-layer sealing cover.
Background
A deep groove ball bearing original name single-row radial ball bearing is a rolling bearing which is most widely applied, and is characterized by small friction resistance and high rotating speed, can be used on a machine part bearing radial load or combined load acted simultaneously in the radial direction and the axial direction, and can also be used on a machine part bearing axial load, such as a low-power motor, a gearbox of an automobile and a tractor and a gear box of a machine tool, a sealing cover is needed to be adopted for the bearing due to the sealing requirement, the sealing cover is not reliably assembled because the outer ring tooth groove is deformed by heat treatment, the cover falling phenomenon often occurs in the bearing moving process, and the heat dissipation problem of the bearing is balanced on the basis of ensuring the sealing effect;
however, the existing deep groove ball bearing is poor in dust prevention and sealing effects, fixed in structure and inconvenient to disassemble and assemble, and is easy to damage.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a dustproof deep groove ball bearing with a double-layer sealing cover.
In order to achieve the purpose, the invention adopts the following technical scheme:
a dustproof deep groove ball bearing with double-layer sealing covers comprises a bearing sleeve, wherein a bearing is installed in the bearing sleeve, dustproof cover plates are installed on two sides of the bearing sleeve, a dustproof ring plate is fixedly installed on one side of the dustproof cover plates, the dustproof ring plate is installed between the bearing sleeve and the bearing, a plurality of sealing strips are installed on the dustproof ring plate, the sealing strips are in contact with the bearing sleeve and the bearing, limiting grooves are formed in an inner ring of the bearing sleeve and an outer ring of the bearing, moving grooves are formed in two sides of the dustproof ring plate, limiting rods are installed in the two moving grooves in a sliding mode and are installed in the corresponding limiting grooves, racks are fixedly installed on one sides, close to each other, of the two limiting rods, the same fixing hole is formed in the inner wall, close to each other, of the two moving grooves, two racks are installed in the fixing holes in a sliding mode, one end of each, seted up fixed chamber on the dust cover plate, the rotation hole has been seted up on one side inner wall in fixed chamber, the connecting rod is installed in the rotation hole rotation, the one end of connecting rod extends to in the fixed orifices and fixed mounting has the gear, two racks all with gear engagement, the other end fixed mounting of connecting rod has first bevel gear, the mounting groove has been seted up on the bearing housing, the slot has been seted up on the inner wall of mounting groove, the control flume has been seted up to one side of dust cover plate, slidable mounting has the mounting panel in the control flume, the mounting panel is installed in the mounting groove, one side fixed mounting of mounting panel has the inserted block, the inserted block is installed in the slot, threaded hole has been seted up to one side of mounting panel, the connecting hole has been seted up on one side inner wall of control flum.
Preferably, the spread groove has been seted up to one side of dust-proof cover plate, and the regulating block is installed to the spread groove internal rotation, has seted up the control hole on the one side inner wall of spread groove, and the control lever has been installed to the control hole internal rotation, and the one end fixed mounting of control lever is on first bevel gear, and the other end fixed mounting of control lever is on the regulating block, and the cross recess has been seted up to one side of regulating block, and the regulating block drives the control lever and begins to rotate for the control lever drives first bevel gear and rotates.
Preferably, the inner wall of the moving groove is provided with a sliding groove, the limiting rod is fixedly provided with a sliding block, and the sliding block is slidably arranged in the sliding groove.
Preferably, the cross section of the limiting groove is square, and the cross section of the limiting rod is square.
Preferably, an auxiliary groove is formed in the inner wall of the fixing hole, a connecting block is fixedly mounted on the rack, and the connecting block is slidably mounted in the auxiliary groove.
Preferably, the control groove is internally and fixedly provided with a square rod, one side of the mounting plate is provided with a square hole, the square rod is arranged in the square hole, and the mounting plate slides on the square rod to stabilize the position of the mounting plate when moving.
Preferably, the cross section of the insertion block is square, and the cross section of the slot is square.
Preferably, a rotating groove is formed in the inner wall of one side of the control groove, one end of the screw rod is rotatably installed in the rotating groove, and the screw rod rotates in the rotating groove to stabilize the position of the screw rod during rotation.
Compared with the prior art, the invention has the beneficial effects that:
according to the scheme, the dustproof cover plate is arranged on the outer sides of the bearing sleeve and the bearing, the sealing strip is respectively in contact with the bearing sleeve and the bearing, meanwhile, the dustproof cover plate drives the mounting plate to be arranged in the mounting groove, the screwdriver is inserted into the cross groove, the adjusting block can be rotated, the control rod drives the first bevel gear to rotate, the second bevel gear drives the screw rod to rotate, the mounting plate slides in the control groove, the mounting plate drives the inserting block to move, the position of the dustproof cover plate can be fixed, meanwhile, the connecting rod drives the gear to rotate, the rack drives the corresponding limiting rod to move, the limiting rod slides into the corresponding limiting groove, the position of the dustproof ring plate can be fixed, the dustproof cover plate and the dustproof ring plate can perform double-layer;
the deep groove ball bearing is reasonable in structure, convenient to operate, good in dust prevention and sealing effects, flexible in structure, convenient to disassemble and assemble the dust prevention cover plate and not prone to damage.
Drawings
FIG. 1 is a schematic view of a front view structure according to the present invention;
FIG. 2 is a schematic view of part A of the structure proposed by the present invention;
FIG. 3 is a schematic structural diagram of part B according to the present invention;
FIG. 4 is a perspective view of a mounting plate and insert block according to the present invention;
fig. 5 is a schematic structural diagram of an adjusting block according to the present invention.
In the figure: 1. a bearing housing; 2. a bearing; 3. a dust-proof cover plate; 4. a dust ring plate; 5. a sealing strip; 6. a limiting groove; 7. a limiting rod; 8. a rack; 9. a spring; 10. a gear; 11. a fixed cavity; 12. a connecting rod; 13. an adjusting block; 14. a cross groove; 15. a first bevel gear; 16. mounting grooves; 17. a slot; 18. a control slot; 19. mounting a plate; 20. inserting a block; 21. a screw rod; 22. a second bevel gear; 23. a control lever; 24. the slot is moved.
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.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of this patent does not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one.
Referring to fig. 1-5, a dustproof deep groove ball bearing with double-layer sealing covers comprises a bearing sleeve 1, a bearing 2 is installed in the bearing sleeve 1, dustproof cover plates 3 are installed on both sides of the bearing sleeve 1, a dustproof ring plate 4 is fixedly installed on one side of the dustproof cover plate 3, the dustproof ring plate 4 is installed between the bearing sleeve 1 and the bearing 2, a plurality of sealing strips 5 are installed on the dustproof ring plate 4, the sealing strips 5 are in contact with the bearing sleeve 1 and the bearing 2, limiting grooves 6 are respectively formed in the inner ring of the bearing sleeve 1 and the outer ring of the bearing 2, moving grooves 24 are respectively formed in both sides of the dustproof ring plate 4, limiting rods 7 are respectively installed in the two moving grooves 24 in a sliding manner, the limiting rods 7 are installed in the corresponding limiting grooves 6, a rack 8 is fixedly installed on one side, which the two limiting rods 7 are close to each other, the same fixing hole is formed in the, two racks 8 are slidably mounted in the fixed holes, one end of each rack 8 is fixedly mounted on a corresponding limiting rod 7, a spring 9 is sleeved on each rack 8, a fixed cavity 11 is formed in the dustproof cover plate 3, a rotating hole is formed in the inner wall of one side of the fixed cavity 11, a connecting rod 12 is rotatably mounted in the rotating hole, one end of the connecting rod 12 extends into the fixed hole and is fixedly mounted with a gear 10, the two racks 8 are both meshed with the gear 10, a first bevel gear 15 is fixedly mounted at the other end of the connecting rod 12, a mounting groove 16 is formed in the bearing sleeve 1, a slot 17 is formed in the inner wall of the mounting groove 16, a control groove 18 is formed in one side of the dustproof cover plate 3, a mounting plate 19 is slidably mounted in the control groove 18, the mounting plate 19 is mounted in the mounting groove 16, an insert 20 is fixedly mounted at, a connecting hole is formed in the inner wall of one side of the control groove 18, a screw rod 21 is rotatably mounted in the connecting hole, the screw rod 21 is mounted in the threaded hole in a threaded manner, a second bevel gear 22 is fixedly mounted at one end of the screw rod 21, and the second bevel gear 22 is meshed with the first bevel gear 15.
In this embodiment, the spread groove has been seted up to one side of dust-proof cover plate 3, regulating block 13 is installed to the spread groove internal rotation, the control hole has been seted up on the one side inner wall of spread groove, control lever 23 is installed to the control hole internal rotation, the one end fixed mounting of control lever 23 is on first bevel gear 15, the other end fixed mounting of control lever 23 is on regulating block 13, cross recess 14 has been seted up to one side of regulating block 13, regulating block 13 drives control lever 23 and begins to rotate, make control lever 23 drive first bevel gear 15 rotate.
In this embodiment, the sliding tray has been seted up on the inner wall of shifting chute 24, and fixed mounting has the sliding block on the gag lever post 7, and sliding block slidable mounting is in the sliding tray.
In this embodiment, the cross section of the limiting groove 6 is square, and the cross section of the limiting rod 7 is square.
In this embodiment, seted up the auxiliary tank on the inner wall of fixed orifices, fixed mounting has the connecting block on the rack 8, and connecting block slidable mounting is in the auxiliary tank.
In this embodiment, fixed mounting has square pole in the control tank 18, and the quad slit has been seted up to one side of mounting panel 19, and square pole is installed in the quad slit, and mounting panel 19 slides on the quad slit, can stabilize the position when mounting panel 19 removes.
In this embodiment, the cross section of the insertion block 20 is square, and the cross section of the insertion slot 17 is square.
In this embodiment, a rotating groove is formed on an inner wall of one side of the control groove 18, one end of the screw rod 21 is rotatably installed in the rotating groove, and the screw rod 21 rotates in the rotating groove to stabilize the position of the screw rod 21 during rotation.
In this embodiment, the dustproof cover plate 3 is installed outside the bearing sleeve 1 and the bearing 2, the dustproof cover plate 3 drives the dustproof ring plate 4 to be installed in the gap between the bearing sleeve 1 and the bearing 2, the sealing strip 5 is respectively contacted with the bearing sleeve 1 and the bearing 2, the dustproof ring plate 4 can prevent dust from entering the gap between the bearing 2, meanwhile, the dustproof cover plate 3 drives the installation plate 19 to be installed in the installation groove 16, a screwdriver is inserted into the cross groove 14, the adjustment block 13 can be rotated, the adjustment block 13 drives the control rod 23 to start rotating, so that the control rod 23 drives the first bevel gear 15 to rotate, the first bevel gear 15 drives the second bevel gear 22 and the connecting rod 12 to rotate, the second bevel gear 22 drives the screw rod 21 to rotate, the screw rod 21 drives the installation plate 19 to move, the installation plate 19 slides in the control groove 18, the installation plate 19 drives the insert 20 to move, so that the insert 20, meanwhile, the connecting rod 12 drives the gear 10 to rotate, the gear 10 drives the two racks 8 to move, the racks 8 drive the corresponding limiting rods 7 to move, the limiting rods 7 can be assisted by the elastic action of the springs 9 to move, the limiting rods 7 slide into the corresponding limiting grooves 6, the positions of the dustproof ring plates 4 can be fixed, the dustproof cover plates 3 and the dustproof ring plates 4 can conduct double-layer dust prevention on the bearing 2, and the dustproof effect is better.
Compared with the prior art, the invention has the technical progress that: the deep groove ball bearing is reasonable in structure, convenient to operate, good in dust prevention and sealing effects, flexible in structure, convenient to disassemble and assemble the dust prevention cover plate 3 and not prone to damage.
Claims (8)
1. The utility model provides a dustproof deep groove ball bearing with double-deck sealed lid, includes bearing housing (1), installs bearing (2) in the bearing housing (1), its characterized in that, dust cover board (3) are all installed to the both sides of bearing housing (1), and one side fixed mounting of dust cover board (3) has dust-proof ring plate (4), and dust-proof ring plate (4) are installed between bearing housing (1) and bearing (2), install a plurality of sealing strip (5) on dust-proof ring plate (4), and sealing strip (5) and bearing housing (1) and bearing (2) contact, and spacing groove (6) have all been seted up to the inner circle of bearing housing (1) and the outer lane of bearing (2), and moving groove (24) have all been seted up to the both sides of dust-proof ring plate (4), and equal slidable mounting has gag lever post (7) in two moving groove (24), and gag lever post (7) are installed in corresponding spacing groove (6), one side of each of the two limiting rods (7) close to each other is fixedly provided with a rack (8), the inner wall of one side of each of the two moving grooves (24) close to each other is provided with a same fixed hole, the fixed holes are internally and slidably provided with two racks (8), one end of each rack (8) is fixedly arranged on the corresponding limiting rod (7), the racks (8) are sleeved with springs (9), the dustproof cover plate (3) is provided with a fixed cavity (11), the inner wall of one side of the fixed cavity (11) is provided with a rotating hole, the rotating hole is internally and rotatably provided with a connecting rod (12), one end of the connecting rod (12) extends into the fixed hole and is fixedly provided with a gear (10), the two racks (8) are both meshed with the gear (10), the other end of the connecting rod (12) is fixedly provided with a first bevel gear (15), the bearing sleeve (1) is provided with a, control groove (18) have been seted up to one side of dust-proof cover plate (3), slidable mounting has mounting panel (19) in control groove (18), mounting panel (19) are installed in mounting groove (16), one side fixed mounting of mounting panel (19) has inserted block (20), inserted block (20) are installed in slot (17), threaded hole has been seted up to one side of mounting panel (19), the connecting hole has been seted up on one side inner wall of control groove (18), lead screw (21) are installed to the connecting hole internal rotation, lead screw (21) threaded mounting is in threaded hole, the one end fixed mounting of lead screw (21) has second bevel gear (22), second bevel gear (22) and first bevel gear (15) meshing.
2. The dustproof deep groove ball bearing with the double-layer sealing cover as claimed in claim 1, wherein one side of the dustproof cover plate (3) is provided with a connecting groove, an adjusting block (13) is rotatably mounted in the connecting groove, a control hole is formed in the inner wall of one side of the connecting groove, a control rod (23) is rotatably mounted in the control hole, one end of the control rod (23) is fixedly mounted on the first bevel gear (15), the other end of the control rod (23) is fixedly mounted on the adjusting block (13), and one side of the adjusting block (13) is provided with a cross groove (14).
3. The dustproof deep groove ball bearing with the double-layer sealing cover as claimed in claim 1 is characterized in that a sliding groove is formed on the inner wall of the moving groove (24), a sliding block is fixedly installed on the limiting rod (7), and the sliding block is slidably installed in the sliding groove.
4. The dust-proof deep groove ball bearing with the double-layer sealing cover as claimed in claim 1 is characterized in that the cross section of the limiting groove (6) is square, and the cross section of the limiting rod (7) is square.
5. The dustproof deep groove ball bearing with the double-layer sealing cover as claimed in claim 1 is characterized in that an auxiliary groove is formed on the inner wall of the fixing hole, a connecting block is fixedly installed on the rack (8), and the connecting block is slidably installed in the auxiliary groove.
6. The dust-proof deep groove ball bearing with the double-layer sealing cover as claimed in claim 1, wherein a square rod is fixedly installed in the control groove (18), a square hole is opened at one side of the mounting plate (19), and the square rod is installed in the square hole.
7. The dust-proof deep groove ball bearing with double sealing covers as claimed in claim 1, characterized in that the cross section of the insert block (20) is square and the cross section of the slot (17) is square.
8. The dust-proof deep groove ball bearing with the double-layer sealing cover as claimed in claim 1 is characterized in that a rotary groove is formed on one side inner wall of the control groove (18), and one end of the screw rod (21) is rotatably installed in the rotary groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011150742.4A CN112360873A (en) | 2020-10-24 | 2020-10-24 | Dustproof deep groove ball bearing with double-layer sealing cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011150742.4A CN112360873A (en) | 2020-10-24 | 2020-10-24 | Dustproof deep groove ball bearing with double-layer sealing cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112360873A true CN112360873A (en) | 2021-02-12 |
Family
ID=74512039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011150742.4A Pending CN112360873A (en) | 2020-10-24 | 2020-10-24 | Dustproof deep groove ball bearing with double-layer sealing cover |
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| Country | Link |
|---|---|
| CN (1) | CN112360873A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187808A (en) * | 2021-04-27 | 2021-07-30 | 南昌工程学院 | Rolling bearing based on magnetic fluid lubrication |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4309063A (en) * | 1980-06-02 | 1982-01-05 | C. L. Frost & Son, Inc. | Bearing seal |
| CN204213190U (en) * | 2014-09-29 | 2015-03-18 | 杭州人本中型轴承有限公司 | Bearing combined seal structure |
| CN210509978U (en) * | 2019-09-19 | 2020-05-12 | 鞍山市精冶机械设备制造有限公司 | Bearing seal structure and bearing |
| CN210674182U (en) * | 2019-09-05 | 2020-06-05 | 河北京海悦康电子科技有限公司 | Accessible crooking arm hangs tester |
| CN211256790U (en) * | 2019-11-25 | 2020-08-14 | 北京中交畅观科技发展有限公司 | Road guardrail with anticorrosive coating |
| CN211548105U (en) * | 2019-12-12 | 2020-09-22 | 吴爱平 | Simple and easy dismantled and assembled archaize building structure |
-
2020
- 2020-10-24 CN CN202011150742.4A patent/CN112360873A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4309063A (en) * | 1980-06-02 | 1982-01-05 | C. L. Frost & Son, Inc. | Bearing seal |
| CN204213190U (en) * | 2014-09-29 | 2015-03-18 | 杭州人本中型轴承有限公司 | Bearing combined seal structure |
| CN210674182U (en) * | 2019-09-05 | 2020-06-05 | 河北京海悦康电子科技有限公司 | Accessible crooking arm hangs tester |
| CN210509978U (en) * | 2019-09-19 | 2020-05-12 | 鞍山市精冶机械设备制造有限公司 | Bearing seal structure and bearing |
| CN211256790U (en) * | 2019-11-25 | 2020-08-14 | 北京中交畅观科技发展有限公司 | Road guardrail with anticorrosive coating |
| CN211548105U (en) * | 2019-12-12 | 2020-09-22 | 吴爱平 | Simple and easy dismantled and assembled archaize building structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187808A (en) * | 2021-04-27 | 2021-07-30 | 南昌工程学院 | Rolling bearing based on magnetic fluid lubrication |
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Application publication date: 20210212 |