CN114738383A - Plastic sliding bearing - Google Patents
Plastic sliding bearing Download PDFInfo
- Publication number
- CN114738383A CN114738383A CN202110019574.3A CN202110019574A CN114738383A CN 114738383 A CN114738383 A CN 114738383A CN 202110019574 A CN202110019574 A CN 202110019574A CN 114738383 A CN114738383 A CN 114738383A
- Authority
- CN
- China
- Prior art keywords
- cover plate
- annular
- upper cover
- lower cover
- peripheral end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
- F16C27/02—Sliding-contact bearings
-
- 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
- F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
- F16C27/06—Elastic or yielding bearings or bearing supports, for exclusively rotary movement by means of parts of rubber or like materials
- F16C27/063—Sliding contact bearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Sealing Devices (AREA)
Abstract
The invention relates to a plastic sliding bearing, and belongs to the technical field of mechanical structures. The plastic sliding bearing comprises a lower cover plate, an upper cover plate and an annular gasket arranged between the upper cover plate and the lower cover plate. The annular gasket is made of elastic materials, and can be abutted to the upper cover plate and the lower cover plate when arranged in an annular cavity between the upper cover plate and the lower cover plate, so that a good sealing effect is achieved. Furthermore, the upper cover plate and the lower cover plate which are made of elastic materials can further improve the sealing performance, so that a special sealing ring is omitted from being arranged in the bearing. Therefore, the friction torque of the bearing can be reduced, the dynamic performance of the bearing is improved, and the working requirement of a vehicle suspension system is met. The plastic sliding bearing has the advantages of simpler manufacturing process, relatively low production cost and longer service life.
Description
Technical Field
The invention relates to the technical field of mechanical structures, in particular to the technical field of bearings, and particularly relates to a plastic sliding bearing.
Background
Plain bearings are commonly used in the pendulum position of vehicle chassis suspensions. Due to the special working condition environment of the vehicle chassis, the sliding bearing needs to have a certain waterproof and dustproof effect so as to prolong the service life of the product. The conventional mode is to increase devices such as a sealing ring in a bearing to improve the sealing performance, however, the increase of the sealing ring increases the production process flow of the bearing on one hand and improves the production and manufacturing cost, and on the other hand, the friction torque of the bearing is large, the movement performance is weakened, and the higher technical requirement of vehicle chassis suspension is difficult to meet.
Therefore, how to provide a sliding bearing capable of effectively improving the friction torque and ensuring the sealing performance becomes an urgent problem to be solved in the field.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a plastic sliding bearing which can effectively improve friction torque while ensuring waterproof and dustproof performance without adding a sealing device.
In order to achieve the above object, a plastic sliding bearing according to the present invention includes:
the lower cover plate comprises an annular lower cover plate bottom, an outer embedded groove arranged at the outer peripheral end of the annular lower cover plate bottom and an inner side wall arranged at the inner peripheral end of the annular lower cover plate bottom;
the upper cover plate comprises an annular upper cover plate base, an external embedded part arranged at the outer peripheral end of the annular upper cover plate base, and an inner side ring hook arranged at the inner peripheral end of the annular upper cover plate base; the outer embedded part is embedded in the outer embedded groove of the lower cover plate, the inner side ring hook is buckled on the inner side wall of the lower cover plate, so that the upper cover plate is movably arranged on the lower cover plate, and an annular cavity is formed between the bottom of the lower cover plate and the base of the upper cover plate;
the annular gasket is made of elastic polyethylene materials, a plurality of roller grooves in the tangential direction are formed in the upper surface and the lower surface of the annular gasket, rollers are arranged in the roller grooves, the annular gasket is arranged in the annular cavity, and the rollers in the roller grooves in the upper surface and the lower surface of the base of the upper cover plate are correspondingly abutted to the upper surface of the bottom of the lower cover plate and the lower surface of the base of the upper cover plate respectively.
In the plastic sliding bearing, the annular gasket further comprises an outer circumferential protrusion arranged at the outer circumferential end of the annular gasket and an inner circumferential protrusion arranged at the inner circumferential end of the annular gasket, the plurality of roller grooves are uniformly distributed between the outer circumferential protrusion and the inner circumferential protrusion, the top ends of the outer circumferential protrusion and the inner circumferential protrusion are abutted against the lower surface of the base of the upper cover plate, and the bottom ends of the outer circumferential protrusion and the inner circumferential protrusion are abutted against the upper surface of the bottom of the lower cover plate.
In the plastic sliding bearing, the upper cover plate further comprises: the annular upper cover plate comprises an outer limiting part and an inner limiting part, wherein the outer limiting part is arranged below the base of the annular upper cover plate and is close to the outer peripheral end, the inner limiting part is arranged at the inner peripheral end below the base of the annular upper cover plate, the outer limiting part and the inner limiting part are positioned at two ends of the annular cavity, and the annular gasket is positioned between the outer limiting part and the inner limiting part.
In the plastic sliding bearing, the end surface of the outer peripheral end of the annular gasket abuts against the outer limiting member, and the end surface of the inner peripheral end of the annular gasket abuts against the inner limiting member.
In this plastics slide bearing, lower apron still including set up in the lateral wall of the peripheral end of apron bottom top under the annular, and set up in apron bottom top is close to the separation blade of this lateral wall under the annular, the lateral wall with the separation blade between be the outer embedded groove.
In the plastic sliding bearing, the lower cover plate and the upper cover plate are both made of elastic modified nylon materials.
In the plastic sliding bearing, the Brinell hardness of the elastic modified nylon material is not more than 65.
When the plastic sliding bearing is adopted, the annular gasket is made of elastic polyethylene materials, and when the annular gasket is arranged in the annular cavity between the upper cover plate and the lower cover plate, the annular gasket can be abutted against the upper cover plate and the lower cover plate, so that a good sealing effect is achieved. Furthermore, the sealing performance can be further improved by adopting the upper cover plate and the lower cover plate made of elastic polyamide resin materials. Therefore, a special sealing ring is not arranged in the bearing, so that the friction torque of the bearing can be reduced, the dynamic performance of the bearing is improved, and the working requirement of a vehicle suspension system is met. The plastic sliding bearing has the advantages of simpler manufacturing process, relatively low production cost and longer service life.
Drawings
Fig. 1 is a schematic structural view of a plastic sliding bearing of the present invention.
Fig. 2 is a sectional view of the plastic sliding bearing in fig. 1.
Fig. 3 is an enlarged view of the upper section of the sectional view of fig. 2.
Fig. 4 is a schematic sectional view of a lower cover plate in the plastic sliding bearing of the present invention.
Fig. 5 is an enlarged view of the left portion of the cross-sectional view of the lower deck of fig. 4.
Fig. 6 is a schematic structural view of a spacer in the plastic sliding bearing of the present invention.
Fig. 7 is an enlarged view of a portion of the gasket of fig. 6.
Fig. 8 is a cross-sectional view of the gasket of fig. 6.
Fig. 9 is an enlarged partial view of the upper portion of the cross-sectional view of the gasket of fig. 8.
Fig. 10 is a schematic structural view of an upper cover plate in the plastic sliding bearing of the present invention.
Fig. 11 is a cross-sectional view of the upper cover plate of fig. 10.
Fig. 12 is a partial enlarged view of the upper portion of the cross-sectional view of the upper deck of fig. 11.
Fig. 13 is a schematic view of the plastic sliding bearing of the present invention assembled to a suspension system of an automobile.
Description of the reference symbols
The lower cover plate 1, the lower cover plate bottom 11, the external embedded groove 12, the inner side wall 13, the outer side wall 14, the baffle 15, the upper cover plate 2, the upper cover plate base 21, the external embedded part 22, the internal ring hook 23, the external limiting part 24, the internal limiting part 25, the annular gasket 3, the roller groove 31, the external periphery side bulge 32, the internal periphery side bulge 33, the annular cavity 4
Detailed Description
In order to make the technical contents of the present invention more clearly understood, the following examples are given in detail.
In one embodiment, as shown in fig. 1, 2 and 3, the plastic sliding bearing includes a lower cover plate 1, an upper cover plate 2 and an annular gasket 3.
As shown in fig. 4 and 5, the lower cover plate 1 includes an annular lower cover plate bottom 11, an outer embedded groove 12 disposed at an outer circumferential end of the annular lower cover plate bottom 11, and an inner side wall 13 disposed at an inner circumferential end of the annular lower cover plate bottom 11;
as shown in fig. 10, 11 and 12, the upper cover 2 includes an annular upper cover base 21, an outer insert 22 provided at an outer peripheral end of the annular upper cover base 21, and an inner annular hook 23 provided at an inner peripheral end of the annular upper cover base 21; the outer embedded part 22 is embedded in the outer embedded groove 12 of the lower cover plate 1, the inner side ring hook 23 is buckled on the inner side wall 13 of the lower cover plate 1, so that the upper cover plate 2 is movably arranged on the lower cover plate 1, and an annular cavity 4 is formed between the lower cover plate bottom 11 of the lower cover plate 1 and the upper cover plate base 21 of the upper cover plate 2;
as shown in fig. 6 to 9, the annular gasket 3 is made of elastic polyethylene, the upper surface and the lower surface of the annular gasket 3 are provided with a plurality of roller grooves 31 along the tangential direction, rollers (not shown) are arranged in the roller grooves 31, the annular gasket 3 is arranged in the annular cavity 4, and the rollers in the roller grooves 31 of the upper surface and the lower surface of the lower cover plate bottom 11 and the lower surface of the upper cover plate base 21 respectively abut against the upper surface of the lower cover plate bottom 11 and the lower surface of the upper cover plate base 21 correspondingly.
In this embodiment, the annular gasket 3 has elasticity, and can effectively realize the sealing of the annular cavity part, so, need not to additionally set up special sealing device such as sealing washer, this has reduced the holistic production manufacturing cost of bearing on the one hand, and on the other hand can optimize the friction torque of bearing, makes the moment littleer, and the mobility can be better, makes it be applicable to more vehicle chassis suspension.
In a preferred embodiment, as shown in fig. 6 to 9, the annular gasket 3 further includes an outer circumferential protrusion 32 disposed at an outer circumferential end of the annular gasket and an inner circumferential protrusion 33 disposed at an inner circumferential end of the annular gasket, the plurality of roller grooves 31 are uniformly distributed between the outer circumferential protrusion 32 and the inner circumferential protrusion 33, top ends of the outer circumferential protrusion 32 and the inner circumferential protrusion 33 abut against a lower surface of the upper cover plate base 21, and bottom ends of the outer circumferential protrusion 32 and the inner circumferential protrusion 33 abut against an upper surface of the lower cover plate base 11. In this preferred embodiment, the contact with the lower surface of the upper cover base 21 and the upper surface of the lower cover bottom 11 is ensured by the outer circumferential side projection 32 and the inner circumferential side projection 33 of the annular gasket 3, and the sealing performance is further improved, so that the waterproof and dustproof effects are further improved.
In a preferred embodiment, as shown in fig. 10, 11 and 12, the upper cover plate 2 further includes: an outer limiting member 24 disposed below the annular upper cover plate base 21 and close to the outer peripheral end, and an inner limiting member 25 disposed below the annular upper cover plate base 21 and close to the inner peripheral end, wherein the outer limiting member 24 and the inner limiting member 25 are located at two ends of the annular cavity 4, and the annular gasket 3 is located between the outer limiting member 24 and the inner limiting member 25. Further, an end surface of an outer peripheral end of the annular gasket abuts against the outer limit member 24, and an end surface of an inner peripheral end of the annular gasket abuts against the inner limit member 25. The outer limiting piece 24 and the inner limiting piece 25 can facilitate assembly and positioning of a product, and can effectively limit the position of the annular gasket 3, so that the dynamic performance of the bearing is ensured.
In another preferred embodiment, as shown in fig. 4 and 5, the lower cover plate 1 further includes an outer sidewall 14 disposed at the outer peripheral end above the bottom 11 of the annular lower cover plate, and a blocking piece 15 disposed above the bottom 11 of the annular lower cover plate and close to the outer sidewall 14, wherein the outer embedded groove 12 is disposed between the outer sidewall 14 and the blocking piece 15. The outer embedded groove 12 is matched and embedded with the outer embedded part 22 of the upper cover plate 2, so that the product is convenient to assemble, and meanwhile, the baffle plate 15 can also play a role in preventing water and dust.
In a more preferred embodiment, the lower cover plate 1 and the upper cover plate 2 are both made of an elastic modified nylon material. The Brinell hardness of the elastic modified nylon material is not more than 65. Therefore, the upper cover plate 1 and the lower cover plate 2 both have certain elasticity, and are matched with the annular gasket 3 made of elastic polyethylene materials, so that the sealing effect is better.
When the plastic sliding bearing is adopted, the annular gasket is made of elastic polyethylene materials, and when the annular gasket is arranged in the annular cavity between the upper cover plate and the lower cover plate, the annular gasket can be abutted against the upper cover plate and the lower cover plate, so that a good sealing effect is achieved. Furthermore, the sealing performance can be further improved by adopting the upper cover plate and the lower cover plate which are made of elastic polyamide resin materials, so that a special sealing device is omitted from being arranged in the bearing, the manufacturing process of the bearing is simple and convenient, and the production and use cost is reduced; on the other hand, as shown in fig. 13, when the plastic sliding bearing of the present invention is applied to a vehicle suspension system, the friction torque of the bearing can be reduced, the dynamic performance thereof can be improved, and the working requirements of the vehicle suspension system can be satisfied. Meanwhile, the upper cover plate, the lower cover plate and the gasket are made of elastic materials, so that the whole bearing is good in impact resistance effect, better in durability and longer in corresponding service life.
In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.
Claims (7)
1. A plastic sliding bearing, characterized by comprising:
the lower cover plate comprises an annular lower cover plate bottom, an outer embedded groove arranged at the outer peripheral end of the annular lower cover plate bottom and an inner side wall arranged at the inner peripheral end of the annular lower cover plate bottom;
the upper cover plate comprises an annular upper cover plate base, an outer embedded piece arranged at the outer peripheral end of the annular upper cover plate base and an inner side ring hook arranged at the inner peripheral end of the annular upper cover plate base; the outer embedded part is embedded in the outer embedded groove of the lower cover plate, the inner side ring hook is buckled on the inner side wall of the lower cover plate, so that the upper cover plate is movably arranged on the lower cover plate, and an annular cavity is formed between the bottom of the lower cover plate and the base of the upper cover plate;
the annular gasket is made of elastic polyethylene materials, a plurality of roller grooves in the tangential direction are formed in the upper surface and the lower surface of the annular gasket, rollers are arranged in the roller grooves, the annular gasket is arranged in the annular cavity, and the rollers in the roller grooves in the upper surface and the lower surface of the base of the upper cover plate are correspondingly abutted to the upper surface of the bottom of the lower cover plate and the lower surface of the base of the upper cover plate respectively.
2. The plastic plain bearing according to claim 1, characterized in that,
the annular gasket also comprises an outer-peripheral-side bulge arranged at the outer peripheral end of the annular gasket and an inner-peripheral-side bulge arranged at the inner peripheral end of the annular gasket, the plurality of roller grooves are uniformly distributed between the outer-peripheral-side bulge and the inner-peripheral-side bulge, the top ends of the outer-peripheral-side bulge and the inner-peripheral-side bulge are abutted against the lower surface of the base of the upper cover plate, and the bottom ends of the outer-peripheral-side bulge and the inner-peripheral-side bulge are abutted against the upper surface of the bottom of the lower cover plate.
3. The plastic plain bearing according to claim 1, characterized in that,
the upper cover plate further comprises: the annular upper cover plate comprises an outer limiting part and an inner limiting part, wherein the outer limiting part is arranged below the base of the annular upper cover plate and is close to the outer peripheral end, the inner limiting part is arranged at the inner peripheral end below the base of the annular upper cover plate, the outer limiting part and the inner limiting part are positioned at two ends of the annular cavity, and the annular gasket is positioned between the outer limiting part and the inner limiting part.
4. The plastic plain bearing according to claim 3, wherein an end face of an outer peripheral end of the annular shim abuts against the outer retaining member, and an end face of an inner peripheral end of the annular shim abuts against the inner retaining member.
5. The plastic plain bearing according to claim 1, characterized in that,
the lower cover plate further comprises an outer side wall arranged at the outer peripheral end above the bottom of the annular lower cover plate and a blocking piece arranged above the bottom of the annular lower cover plate and close to the outer side wall, and an outer embedded groove is formed between the outer side wall and the blocking piece.
6. The plastic sliding bearing according to any one of claims 1 to 5, wherein the lower cover plate and the upper cover plate are both made of an elastically modified nylon material.
7. The plastic slide bearing according to claim 6, wherein said resiliently modified nylon material has a Brinell hardness of not greater than 65.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110019574.3A CN114738383A (en) | 2021-01-07 | 2021-01-07 | Plastic sliding bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110019574.3A CN114738383A (en) | 2021-01-07 | 2021-01-07 | Plastic sliding bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114738383A true CN114738383A (en) | 2022-07-12 |
Family
ID=82274028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110019574.3A Pending CN114738383A (en) | 2021-01-07 | 2021-01-07 | Plastic sliding bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114738383A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10122233A (en) * | 1996-10-21 | 1998-05-12 | Oiles Ind Co Ltd | Thrust bearing made of synthetic resin |
| JP2001173658A (en) * | 1999-12-15 | 2001-06-26 | Oiles Ind Co Ltd | Synthetic resin-made thrust bearing |
| CN1688826A (en) * | 2002-10-03 | 2005-10-26 | 奥依列斯工业株式会社 | Sliding bearing |
| WO2007132556A1 (en) * | 2006-05-12 | 2007-11-22 | Oiles Corporation | Sliding bearing |
| CN101449068A (en) * | 2006-05-15 | 2009-06-03 | 奥依列斯工业株式会社 | Sliding bearing |
| WO2011070772A1 (en) * | 2009-12-11 | 2011-06-16 | オイレス工業株式会社 | Thrust slide bearing constituted of synthetic resins |
| CN103026083A (en) * | 2010-08-06 | 2013-04-03 | 奥依列斯工业株式会社 | Thrust sliding bearing |
| CN103597228A (en) * | 2011-06-09 | 2014-02-19 | 奥依列斯工业株式会社 | Synthetic-resin plain bearing |
| CN103857933A (en) * | 2011-10-07 | 2014-06-11 | 奥依列斯工业株式会社 | Synthetic-resin sliding bearing |
| CN106687704A (en) * | 2014-09-29 | 2017-05-17 | 奥依列斯工业株式会社 | Thrust bearing for vehicle |
| CN108291576A (en) * | 2015-11-20 | 2018-07-17 | 奥依列斯工业株式会社 | synthetic resin sliding bearing |
| CN108350946A (en) * | 2015-11-02 | 2018-07-31 | 奥依列斯工业株式会社 | synthetic resin sliding bearing |
| CN111720446A (en) * | 2020-05-26 | 2020-09-29 | 上海百信轴承有限公司 | Canned type thrust ball bearing |
-
2021
- 2021-01-07 CN CN202110019574.3A patent/CN114738383A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10122233A (en) * | 1996-10-21 | 1998-05-12 | Oiles Ind Co Ltd | Thrust bearing made of synthetic resin |
| JP2001173658A (en) * | 1999-12-15 | 2001-06-26 | Oiles Ind Co Ltd | Synthetic resin-made thrust bearing |
| CN1688826A (en) * | 2002-10-03 | 2005-10-26 | 奥依列斯工业株式会社 | Sliding bearing |
| WO2007132556A1 (en) * | 2006-05-12 | 2007-11-22 | Oiles Corporation | Sliding bearing |
| CN101438069A (en) * | 2006-05-12 | 2009-05-20 | 奥依列斯工业株式会社 | Sliding bearing |
| CN101449068A (en) * | 2006-05-15 | 2009-06-03 | 奥依列斯工业株式会社 | Sliding bearing |
| WO2011070772A1 (en) * | 2009-12-11 | 2011-06-16 | オイレス工業株式会社 | Thrust slide bearing constituted of synthetic resins |
| CN103026083A (en) * | 2010-08-06 | 2013-04-03 | 奥依列斯工业株式会社 | Thrust sliding bearing |
| CN103597228A (en) * | 2011-06-09 | 2014-02-19 | 奥依列斯工业株式会社 | Synthetic-resin plain bearing |
| CN105805171A (en) * | 2011-06-09 | 2016-07-27 | 奥依列斯工业株式会社 | Synthetic resin-made sliding bearing |
| CN103857933A (en) * | 2011-10-07 | 2014-06-11 | 奥依列斯工业株式会社 | Synthetic-resin sliding bearing |
| CN106687704A (en) * | 2014-09-29 | 2017-05-17 | 奥依列斯工业株式会社 | Thrust bearing for vehicle |
| CN108350946A (en) * | 2015-11-02 | 2018-07-31 | 奥依列斯工业株式会社 | synthetic resin sliding bearing |
| CN108291576A (en) * | 2015-11-20 | 2018-07-17 | 奥依列斯工业株式会社 | synthetic resin sliding bearing |
| CN111720446A (en) * | 2020-05-26 | 2020-09-29 | 上海百信轴承有限公司 | Canned type thrust ball bearing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2427732C2 (en) | Friction bearing | |
| KR101523036B1 (en) | Sliding bearing | |
| JP6439758B2 (en) | Sealed thrust ball bearing | |
| WO2008062585A1 (en) | Sealing device | |
| KR102125108B1 (en) | Sealed roller bearing | |
| CN107407420B (en) | Sealing device | |
| JP2013177957A (en) | Ball joint dust cover | |
| JP2008151174A (en) | Sealing device | |
| US9239081B2 (en) | Synthetic resin-made sliding bearing | |
| KR101148487B1 (en) | Thrust sliding bearing | |
| CN110325754B (en) | Corrugated pipe with at least one reinforcing rib | |
| KR20040098860A (en) | dual seal assembly for bearing | |
| JP2010071323A (en) | Sealing device | |
| CN114738383A (en) | Plastic sliding bearing | |
| KR20120110206A (en) | Low friction oil seal for crank shaft of vehicle | |
| JP6262961B2 (en) | Sealing device | |
| KR200431491Y1 (en) | Ball transfer | |
| JP2013072463A (en) | Bearing device for wheel | |
| JPH0988996A (en) | Constant velocity universal joint | |
| CN207049200U (en) | A kind of miniature bearing sealing dust-proof cover | |
| CN203362847U (en) | Light-contact type sealed bearing | |
| CN218063080U (en) | Tapered roller bearing product with sealing ring | |
| CN211321078U (en) | Hollow shaft motor and oil seal thereof | |
| CN104870840A (en) | Ball joint dust cover | |
| JP2013096433A (en) | Sealed bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |