CN113202806B - Water pump shaft coupling bearing - Google Patents
Water pump shaft coupling bearing Download PDFInfo
- Publication number
- CN113202806B CN113202806B CN202110540760.1A CN202110540760A CN113202806B CN 113202806 B CN113202806 B CN 113202806B CN 202110540760 A CN202110540760 A CN 202110540760A CN 113202806 B CN113202806 B CN 113202806B
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- section
- butt
- ring
- mandrel
- water
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/043—Shafts
- F04D29/044—Arrangements for joining or assembling shafts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
Abstract
The invention discloses a water pump shaft connecting bearing which comprises a mandrel, an outer ring, a roller, an oil-proof sealing piece and a waterproof sealing piece, wherein the waterproof sealing piece comprises a water-repellent ring and a sealing ring, the water-repellent ring comprises a first bending section, a second bending section and a third bending section, two ends of the sealing ring are respectively provided with an expansion end and a butt end, the outer ring is provided with a fixing groove, the butt end comprises a first butt section and a second butt section, the joint of the first butt section and the second butt section is in butt joint with the first bending section, and one end, far away from the first butt section, of the second butt section is in butt joint with the second bending section. The terminal surface at grease proofing sealing member place is towards drive mechanism, and when adopting gear drive, grease proofing sealing member can prevent inside lubricating oil gets into water pump coupling bearing, refuses the water ring and can block most steam, and the drop of water that condenses on refusing the water ring moreover can break away from and refuse the water ring because of centrifugal action, and the shape of butt end makes things convenient for the butt end to assemble to refusing the water intra-annular, can prolong the time that irreversible deformation appears in the butt end simultaneously.
Description
Technical Field
The invention belongs to the technical field of bearings, and particularly relates to a water pump shaft connecting bearing.
Background
The water pump shaft connecting bearing is an important component of an automobile water pump system, the automobile water pump system is usually arranged on the side of an automobile engine, the water pump shaft connecting bearing usually comprises a mandrel, an outer ring and a roller, and the water pump shaft connecting bearing generally plays a role in transmitting power and torque.
The existing water pump shaft connecting bearing usually further comprises a sealing ring for preventing water vapor generated by an engine from entering the bearing, the sealing ring comprises a sealing lip which is abutted to a mandrel, and after long-time work, the sealing ring is easy to lose efficacy, so that external water vapor and pollutants enter the bearing. And current water pump coupling bearing's one end is equipped with drive mechanism, and drive mechanism is band pulley or gear drive usually, and when adopting gear drive, need lubricating oil to lubricate between the gear, inside current sealing washer can't avoid lubricating oil to dip water pump coupling bearing for early inefficacy appears in water pump coupling bearing, current sealing washer can't satisfy the waterproof grease proofing demand of customer.
The existing spindle is usually cylindrical, the existing spindle and a transmission shaft of a transmission mechanism are usually kept relatively fixed through interference fit, but the fixing mode is easy to slip at a high rotating speed or a high torque to cause transmission failure of power or torque, so that the existing water pump shaft connecting bearing cannot meet the requirement of rapid development of the industry.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the water pump shaft connecting bearing which has better water-proof and oil-proof effects than the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: a water pump shaft connecting bearing comprises a mandrel, an outer ring and a roller, and further comprises an oil-proof sealing element and a water-proof sealing element which are arranged between the mandrel and the outer ring, wherein the roller is arranged between the oil-proof sealing element and the water-proof sealing element, the water-proof sealing element comprises a water-repellent ring and a sealing ring, the water-repellent ring comprises a first bending section in interference fit with the mandrel, a third bending section in clearance fit with the outer ring and a second bending section for connecting the first bending section and the third bending section, the first bending section and the third bending section are parallel to each other, the second bending section is perpendicular to the axis of the mandrel, two ends of the sealing ring are respectively provided with an expansion end and a butt end, the outer ring is provided with a fixing groove for fixing the expansion end, the butt end is in a shape that the middle part is convex towards the mandrel along the axial section of the mandrel, and comprises a first butt section and a second butt section, the joint of the first abutting section and the second abutting section abuts against the first bending section, and one end, far away from the first abutting section, of the second abutting section abuts against the second bending section.
By adopting the scheme, the end face where the oil-proof sealing piece is located faces the transmission mechanism, and when the gear transmission is adopted, the oil-proof sealing piece can prevent lubricating oil thrown out by the transmission mechanism from entering the water pump shaft coupling bearing.
The car is at the operation in-process, can heat up because of the operation of engine all around of engine and produce steam, waterproof sealing spare refuses the water ring and can block most steam, and along with the dabber rotates, the drop of water that condenses on refusing the water ring can break away from because of centrifugal action and refuse the water ring, prevent that the sealing washer from influencing sealing performance because of contacting too much steam, the expansion end of sealing washer can make the sealing washer better fixed with the outer lane, the convenient butt end of shape of butt end assembles to refusing the water intra-annular, the time of irreversible deformation appears in the extension butt end simultaneously, guarantee that the butt end butt is on refusing the water ring, the butt end is on first section of buckling and second section of buckling simultaneously, the sealed effect of assurance that can be better.
As a further provision of the invention, the length of the first abutment section along the mandrel axis is less than the length of the second abutment section along the mandrel axis.
By adopting the scheme, the abutting end is enabled to be abutted better with the water-repellent ring.
According to the further arrangement of the invention, a groove is formed in one side, facing the outer ring, of the joint of the first abutting section and the second abutting section, and a C-shaped first clamp spring is arranged in the groove.
Adopt above-mentioned scheme, the butt end can produce deformation after water pump coupling bearing long-time running, and first jump ring can make the better more stable butt of junction of first butt section and second butt section at first bending segment, prolongs waterproof sealing member's life, and first jump ring embedding recess is made things convenient for to the shape of first jump ring.
According to the invention, the section of the groove along the axial direction of the mandrel is an arc or a semicircle, the section of the first clamp spring along the axial direction of the mandrel is a circle, and two opposite ends of the first clamp spring are respectively provided with a T-shaped clamping block and a clamping groove for embedding the clamping block.
First jump ring can produce irreversible deformation after water pump coupling bearing long-time operation, causes the elasticity weak, adopts above-mentioned scheme, through the cooperation of fixture block and draw-in groove, can be better fix first jump ring in the recess, prevents to lead to the unable butt of butt end on water-repellent ring because of the deformation of first jump ring.
According to the oil-proof sealing piece, the oil-proof sealing piece comprises a U-shaped framework and an elastic part wrapped on the framework, the framework comprises a first framework and a second framework which are parallel to each other, the elastic part comprises a first elastic section wrapped on the first framework and a second elastic section wrapped on the second framework, an embedded groove for embedding and interference fit of the first elastic section is formed in the surface, facing the mandrel, of the outer ring, and a sealing lip abutted against the mandrel is arranged on one side, away from the first elastic section, of the second elastic section.
By adopting the scheme, the opening of the framework faces to the transmission mechanism, so that the oil-proof sealing piece can be better fixed with the outer ring.
As a further arrangement of the invention, an annular concave cavity is arranged on one side of the second framework, which is far away from the mandrel, and a C-shaped second clamp spring is arranged in the concave cavity.
Adopt above-mentioned scheme, the seal lip on the second elasticity section can be guaranteed to the second jump ring and the dabber is in the butt state, guarantees the sealed effect of grease proofing sealing member, prolongs grease proofing sealing member's life.
As a further arrangement of the invention, the two ends of the second clamp spring are respectively provided with a convex block, and the cavity wall of the concave cavity is provided with a limiting part which is clamped with the convex blocks.
By adopting the scheme, the second clamp spring is installed to the concave cavity, and then the convex blocks at the two ends of the second clamp spring and the limiting parts form limiting positions, so that the second clamp spring cannot deform irreversibly due to long service life, the effect of the second clamp spring is guaranteed, and the sealing effect of the oil drainage sealing element is guaranteed.
The limiting part is a stop block, the shape of the cross section of the limiting part along the axial direction of the mandrel is consistent with that of the cross section of the concave cavity along the axial direction of the mandrel, the number of the stop blocks is consistent with that of the convex blocks, and a notch for embedding the connecting part is formed in one side, facing the outer ring, of the stop block.
By adopting the scheme, during installation, the second clamp spring is embedded into the cavity, the connecting part at one end is pressed into the notch, and the connecting part at the other end is embedded into the other notch, so that the two ends are limited by one stop block respectively, and the second clamp spring is fixed in the cavity.
As a further arrangement of the invention, the opposite surfaces of the two stop blocks are provided with limit grooves with the same shape as the end heads.
By adopting the scheme, the limiting groove can prevent the end head from tilting towards the direction far away from the axis of the mandrel, and the limit of the stop block on the end head is ensured.
As a further arrangement of the invention, one end of the mandrel is provided with a fixed end which is prism-shaped.
By adopting the scheme, the preferred fixed end is a hexagonal prism and can be matched with the transmission shaft with the hexagonal hole, and compared with the conventional cylindrical fixed end which is fixed by interference fit, the prismatic fixed end is more stable in the aspects of power transmission and torque transmission, so that the water pump shaft connecting bearing can better bear larger torque and rotating speed.
The invention is further described below with reference to the accompanying drawings.
Drawings
FIG. 1 is a side view of an embodiment of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is an enlarged view of portion I of FIG. 2;
FIG. 4 is an enlarged view of portion II of FIG. 2;
FIG. 5 is a schematic view of the oil-proof sealing member according to the embodiment of the present invention without the second snap spring;
FIG. 6 is a second clamp spring of the embodiment of the present invention;
fig. 7 is a schematic view of a first clamp spring according to an embodiment of the invention.
The waterproof sealing element comprises a mandrel 1, a fixed end 11, an outer ring 2, a fixing groove 21, an embedded groove 22, a roller 3, a waterproof sealing element 4, a water-repellent ring 41, a first bending section 411, a second bending section 412, a third bending section 413, a sealing ring 42, an expanded end 421, an abutting end 422, a first abutting section 4221, a second abutting section 4222, a groove 4223, a first clamping spring 43, a clamping block 431, a clamping groove 432, an oil-proof sealing element 5, a framework 51, a first framework 511, a second framework 512, a cavity 513, a clamping block 5131, a limiting groove 51311, a notch 5132, an elastic part 52, a first elastic section 521, a second elastic section 522, a sealing lip 5222, a second clamping spring 53, an end 531 and a connecting part 532.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.
In the description of the present invention, it should be noted that, unless otherwise specified, the orientations or positional relationships indicated in the description as terms of "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Specific embodiments of the present invention are shown in fig. 1-7.
A water pump shaft connecting bearing comprises a mandrel 1, an outer ring 2 and a roller 3, and further comprises a waterproof sealing part 4 and an oil-proof sealing part 5 which are arranged between the mandrel 1 and the outer ring 2, the roller 3 is arranged between the waterproof sealing part 4 and the oil-proof sealing part 5, the waterproof sealing part 4 comprises a water-repellent ring 41 and a sealing ring 42, the water-repellent ring 41 is made of plastics, the water-repellent ring 41 comprises a first bending section 411 in interference fit with the mandrel 1, a third bending section 413 in clearance fit with the outer ring 2 and a second bending section 412 connecting the first bending section 411 and the third bending section 413, the first bending section 411 and the third bending section 413 are parallel to each other, the second bending section 412 is perpendicular to the axis of the mandrel 1, two ends of the sealing ring 42 are respectively provided with an expanding end 421 and a butt end 422, the outer ring 2 is provided with a fixing groove 21 for fixing the expanding end 421, the butt end 422 is in a shape of which the middle part is raised towards the mandrel 1 along the axial section of the mandrel 1, the abutting end 422 comprises a first abutting section 4221 and a second abutting section 4222, the joint of the first abutting section 4221 and the second abutting section 4222 abuts on the first bending section 411, and one end of the second abutting section 4222 far away from the first abutting section 4221 abuts on the second bending section 412. The length of the first abutment section 4221 along the axis of the mandrel 1 is smaller than the length of the second abutment section 4222 along the axis of the mandrel 1.
The end face where the oil-proof sealing piece 5 is located faces the transmission mechanism, and when gear transmission is adopted, the oil-proof sealing piece 5 can prevent lubricating oil thrown out by the transmission mechanism from entering the water pump shaft coupling bearing.
The car is at the operation in-process, can heat up because of the operation of engine all around the engine and produce steam, waterproof sealing member 4 reject water ring 41 and can block most steam, and along with dabber 1 rotates, the drop of water that condenses on rejecting water ring 41 can break away from rejecting water ring 41 because of centrifugal action, prevent that sealing washer 42 from influencing sealing performance because of contacting too much steam, sealing washer 42's expansion end 421 can make sealing washer 42 better fixed with outer lane 2, the convenient butt end 422 of butt end 422's shape assembles to rejecting water ring 41 in, can prolong the time that the irreversible deformation appears in butt end 422 simultaneously, guarantee butt end 422 butt on rejecting water ring 41, butt end 422 butt simultaneously is on first section 411 of buckling and the second section 412 of buckling, can be better guarantee sealed effect.
A groove 4223 is formed in one side, facing the outer ring 2, of the joint of the first abutting section 4221 and the second abutting section 4222, and a C-shaped first snap spring 43 is arranged in the groove 4223. The butt end 422 can produce deformation after the long-time operation of water pump coupling bearing, and first jump ring 43 can make the better more stable butt in first bending segment 411 of junction of first butt section 4221 and second butt section 4222, extension waterproof sealing member 4's life, and first jump ring 43 embedding recess 4223 is made things convenient for to the shape of first jump ring 43.
The section of the groove 4223 in the axial direction of the mandrel 1 is a semicircle, the section of the first clamp spring 43 in the axial direction of the mandrel 1 is a circle, two opposite ends of the first clamp spring 43 are respectively provided with a T-shaped fixture block 431 and a clamping groove 432 for embedding the fixture block 431, the abutting end 422 is made of an elastic material such as rubber, the joint of the first abutting section 4221 and the second abutting section 4222 can generate large deformation when the fixture block 431 and the clamping groove 432 are clamped, the first clamp spring 43 can generate irreversible deformation after the water pump shaft connecting bearing runs for a long time, so that the elasticity is weakened, through the matching of the fixture block 431 and the clamping groove 432, the first clamp spring 43 can be better fixed in the groove 4223, and the situation that the abutting end 422 cannot be continuously abutted to the water repellent ring 41 due to the deformation of the first clamp spring 43 is avoided.
The oil-proof sealing member 5 includes the skeleton 51 of U font and the elastic part 52 of parcel on skeleton 51, skeleton 51 adopts comparatively hard material to make, like engineering plastics, elastic part 52 adopts elastic material to make, skeleton 51 includes first skeleton 511 and the second skeleton 512 that is parallel to each other, elastic part 52 is including the first elastic section 521 of parcel on first skeleton 511 and the second elastic section 522 of parcel on second skeleton 512, outer lane 2 is equipped with the embedded groove 22 that supplies first elastic section 521 embedding and interference fit on the face towards dabber 1, one side that the first elastic section 521 is kept away from to second elastic section 522 is equipped with the sealing lip 5222 with dabber 1 butt, in this embodiment, sealing lip 5222 has two and the contained angle between the adjacent sealing lip 5222 > 90, make the butt effect of sealing lip 5222 better. The opening of the framework 51 faces the transmission mechanism, so that the oil-proof sealing piece 5 can be better fixed with the outer ring 2.
An annular concave cavity 513 is formed in one side, away from the mandrel 1, of the second framework 512, and a C-shaped second clamp spring 53 is arranged in the concave cavity 513. The second snap spring 53 can ensure that the sealing lip 5222 on the second elastic section 522 is in an abutting state with the mandrel 1, so that the sealing effect of the oil-proof sealing element 5 is ensured, and the service life of the oil-proof sealing element 5 is prolonged.
Both ends of the second clamp spring 53 are provided with end heads 531, the end heads 531 and the end parts of the second clamp spring 53 are connected through a connecting part 532, a stopper 5131 which is consistent with the cavity 513 along the axial section of the mandrel 1 is arranged on the cavity wall of the cavity 513, the number of the stoppers 5131 is consistent with that of the end heads 531, and one side, facing the outer ring 2, of the stopper 5131 is provided with a notch 5132 for embedding the connecting part 532.
After the second clamp spring 53 is installed in the cavity 513, the protruding blocks at the two ends of the second clamp spring 53 are limited by the limiting parts, so that the second clamp spring 53 cannot deform irreversibly due to long service life, the effect of the second clamp spring 53 is ensured, and the sealing effect of the oil drain sealing element is ensured.
During installation, the second clamp spring 53 is firstly embedded into the cavity 513, the connecting part 532 at one end is pressed into the notch 5132, and the connecting part 532 at the other end is embedded into the other notch 5132, so that the two ends 531 respectively form limit with one stopper 5131, and the second clamp spring 53 is fixed in the cavity 513.
The opposite surfaces of the two blocks 5131 are provided with limit grooves 51311 with the same shape as the end 531. The limiting groove 51311 can prevent the end 531 from tilting in the direction away from the axis of the mandrel 1, and the limit of the end 531 by the stop block 5131 is ensured.
One end of dabber 1 is equipped with stiff end 11, and stiff end 11 is hexagonal prism shape, can with the transmission shaft adaptation in area hexagonal hole, for conventional cylindrical stiff end 11 that relies on interference fit to fix, prismatic stiff end 11 is more stable in the aspect of transmission power and torque for water pump coupling bearing can bear great torque and rotational speed better.
The present invention is not limited to the above embodiments, and those skilled in the art can implement the present invention in other embodiments according to the disclosure of the present invention, or make simple changes or modifications on the design structure and idea of the present invention, and fall into the protection scope of the present invention.
Claims (6)
1. The utility model provides a water pump coupling bearing, includes dabber, outer lane and roller, its characterized in that: the waterproof sealing piece comprises a water-repellent ring and a sealing ring, the water-repellent ring comprises a first bending section in interference fit with the mandrel, a third bending section in clearance fit with the outer ring and a second bending section for connecting the first bending section and the third bending section, the first bending section and the third bending section are parallel to each other, the second bending section is perpendicular to the axis of the mandrel, two ends of the sealing ring are respectively provided with an expansion end and a butt end, the outer ring is provided with a fixing groove for fixing the expansion end, the butt end is in a shape of a hook protruding towards the mandrel from the middle part along the axial section of the mandrel, the butt end comprises a first butt section and a second butt section, and the joint of the first butt section and the second butt section is butted on the first bending section, one end of the second abutting section, which is far away from the first abutting section, abuts against the second bending section;
the oil-proof sealing piece comprises a U-shaped framework and an elastic part wrapped on the framework, the framework comprises a first framework and a second framework which are parallel to each other, the elastic part comprises a first elastic section wrapped on the first framework and a second elastic section wrapped on the second framework, an embedded groove for the first elastic section to be embedded and in interference fit is formed in the surface, facing the mandrel, of the outer ring, and a sealing lip abutted to the mandrel is arranged on one side, away from the first elastic section, of the second elastic section;
an annular concave cavity is formed in one side, away from the mandrel, of the second framework, and a C-shaped second clamp spring is arranged in the concave cavity;
the two ends of the second clamp spring are respectively provided with a convex block, and the cavity wall of the concave cavity is provided with a limiting part which is clamped with the convex blocks;
the convex block comprises an end head and a connecting part for connecting the end head with the end part of the second clamp spring, the limiting part is a stop block, the axial cross section shape of the mandrel is consistent with that of the concave cavity, the number of the stop blocks is consistent with that of the convex block, and one side, facing the outer ring, of the stop block is provided with a notch for the connecting part to be embedded in.
2. The water pump shaft coupling bearing according to claim 1, wherein: the length of the first abutting section along the axis of the mandrel is smaller than the length of the second abutting section along the axis of the mandrel.
3. The water pump shaft coupling bearing according to claim 2, wherein: a groove is formed in one side, facing the outer ring, of the joint of the first abutting section and the second abutting section, and a C-shaped first clamp spring is arranged in the groove.
4. The water pump shaft coupling bearing according to claim 3, wherein: the axial cross-section of dabber is major arc or semicircle along the recess, first jump ring is circular along the axial cross-section of dabber, the relative both ends of first jump ring are equipped with the fixture block of T font and the draw-in groove that supplies the fixture block embedding respectively.
5. The water pump shaft coupling bearing according to claim 1, wherein: and the opposite surfaces of the two stop blocks are provided with limit grooves with the same shapes as the end heads.
6. The water pump shaft coupling bearing according to claim 1, 4 or 5, wherein: one end of the mandrel is provided with a fixed end which is prismatic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110540760.1A CN113202806B (en) | 2021-05-18 | 2021-05-18 | Water pump shaft coupling bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110540760.1A CN113202806B (en) | 2021-05-18 | 2021-05-18 | Water pump shaft coupling bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113202806A CN113202806A (en) | 2021-08-03 |
| CN113202806B true CN113202806B (en) | 2022-06-17 |
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ID=77031615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110540760.1A Active CN113202806B (en) | 2021-05-18 | 2021-05-18 | Water pump shaft coupling bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113202806B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1395157A (en) * | 1971-08-05 | 1975-05-21 | Ransome Hoffmann Pollard | Integral shaft bearing and seal assembly |
| JP2013253689A (en) * | 2012-05-10 | 2013-12-19 | Nsk Ltd | Oil seal and sealed roller bearing |
| CN105465188A (en) * | 2014-07-10 | 2016-04-06 | 舍弗勒技术股份两合公司 | Bearing |
| CN111998001A (en) * | 2020-07-13 | 2020-11-27 | 人本股份有限公司 | Shaft coupling bearing seal assembly |
| CN212928506U (en) * | 2020-08-10 | 2021-04-09 | 人本股份有限公司 | Water pump shaft coupling bearing |
-
2021
- 2021-05-18 CN CN202110540760.1A patent/CN113202806B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1395157A (en) * | 1971-08-05 | 1975-05-21 | Ransome Hoffmann Pollard | Integral shaft bearing and seal assembly |
| JP2013253689A (en) * | 2012-05-10 | 2013-12-19 | Nsk Ltd | Oil seal and sealed roller bearing |
| CN105465188A (en) * | 2014-07-10 | 2016-04-06 | 舍弗勒技术股份两合公司 | Bearing |
| CN111998001A (en) * | 2020-07-13 | 2020-11-27 | 人本股份有限公司 | Shaft coupling bearing seal assembly |
| CN212928506U (en) * | 2020-08-10 | 2021-04-09 | 人本股份有限公司 | Water pump shaft coupling bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113202806A (en) | 2021-08-03 |
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