CN220581533U - Outer spherical ball bearing with low friction moment sealing structure - Google Patents
Outer spherical ball bearing with low friction moment sealing structure Download PDFInfo
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- CN220581533U CN220581533U CN202322394656.3U CN202322394656U CN220581533U CN 220581533 U CN220581533 U CN 220581533U CN 202322394656 U CN202322394656 U CN 202322394656U CN 220581533 U CN220581533 U CN 220581533U
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- bearing
- ring
- low friction
- spherical ball
- ball bearing
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- 238000007789 sealing Methods 0.000 title claims abstract description 69
- 239000003292 glue Substances 0.000 claims abstract description 27
- 238000009434 installation Methods 0.000 claims abstract description 24
- 238000009957 hemming Methods 0.000 claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 239000011324 bead Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 238000005096 rolling process Methods 0.000 abstract description 7
- 239000004519 grease Substances 0.000 abstract description 4
- 230000007704 transition Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
The application provides an outer spherical ball bearing with a low friction moment sealing structure, which comprises a bearing body, wherein two sides of the bearing body are respectively provided with a circle of glue hanging retainer ring installation parts and a circle of hemming cover installation parts which are distributed around the axial center in a circumferential direction, the glue hanging retainer ring installation parts are arranged on an outer ring of the bearing and an inner ring of the bearing, and the hemming cover installation parts are arranged on the outer ring of the bearing at the inner side of the glue hanging retainer ring installation parts; further comprises: the two glue hanging check rings are buckled on the two glue hanging check ring installation parts in a one-to-one correspondence manner, and the upper parts of the two glue hanging check rings are respectively clamped on the two edge rolling covers of the edge rolling cover installation part. The double-layer sealing structure is adopted, the inside of the bearing can be effectively prevented from being in direct contact with the external environment, the sealing effect of the bearing is guaranteed, the edge rolling cover and the outer diameter of the inner ring of the bearing adopt a non-contact sealing structure, and the friction torque is avoided when grease is prevented from leaking.
Description
Technical Field
The application relates to the technical field of bearing sealing, in particular to an outer spherical ball bearing with a low friction moment sealing structure.
Background
Currently, sealed bearings on the market typically employ either contact interference seals or non-contact gap seals. The contact interference seal generally adopts interference fit between a sealing lip of a sealing ring and the outer diameter of the bearing inner ring, and in order to achieve an ideal sealing effect, the sealing ring is likely to be a single-lip seal, a double-lip seal or even a three-lip seal. The whole bearing is rotated to receive relatively large friction moment between the sealing lip and the outer diameter of the inner ring; the non-contact gap seal generally adopts clearance fit between a sealing ring and the outer diameter of the bearing inner ring, and the seal ensures that the bearing also has low friction torque, but the bearing is in direct contact with the external environment, so that the invasion of foreign matters such as external dust into the bearing can not be effectively prevented, and the service life of the bearing is influenced.
In view of the above, it is a technical problem to be solved by those skilled in the art how to design an outer spherical ball bearing with good sealing performance and low friction torque.
Disclosure of Invention
The application provides an outer spherical ball bearing of low friction moment seal structure has dual seal structure, prevents effectively that the inside and external environment direct contact of bearing, guarantees the sealed effect of bearing, and the non-contact seal of inboard seal structure and bearing inner race external diameter simultaneously avoids friction moment to produce when guaranteeing that grease does not take place to leak.
The application provides an outer spherical ball bearing with a low friction moment sealing structure, which comprises a bearing body, wherein two sides of the bearing body are respectively provided with a circle of glue hanging check ring installation parts and a circle of curled edge cover installation parts which are distributed around the axial center in a circumferential direction, the glue hanging check ring installation parts are arranged on a bearing outer ring and a bearing inner ring, and the curled edge cover installation parts are arranged on the bearing outer ring at the inner side of the glue hanging check ring installation parts; further comprises:
the two glue hanging check rings are respectively buckled on the two glue hanging check ring installation parts in a one-to-one correspondence manner;
and the two hemming covers are clamped at the upper parts of the two hemming cover mounting parts.
In some embodiments, the mounting portion of the glue hanging retainer ring comprises an outer ring mounting groove arranged on the outer ring of the bearing and an inner ring step arranged on the inner ring of the bearing, the upper end of the glue hanging retainer ring is adapted to the outer ring mounting groove, and the lower end of the glue hanging retainer ring is seated on the inner ring step.
In some embodiments, the rubberizing retainer ring comprises a sealing lip provided with a slot, an inserting piece inserted into the slot, a leaning piece leaning on the L-shaped section of the inner ring step, and a first connecting piece obliquely connected between the inserting piece and the leaning piece.
In some embodiments, the crimp cap mounting portion is a second outer ring seal groove provided in the bearing outer ring.
In some embodiments, the crimp cap includes a clip fitting that snaps into the second outer ring seal groove, a vertical stop, and a second connector that connects the clip fitting and the vertical stop.
In some embodiments, the mounting member is a steel hanging collar.
In some embodiments, the bead cover is a steel bead cover.
In some embodiments, the two rubberized retainers are symmetrically distributed with respect to a central longitudinal section of the bearing.
In some embodiments, two of the crimping caps are symmetrically distributed with respect to a bearing center longitudinal section.
The outer spherical ball bearing with the low friction moment sealing structure has the following technical advantages:
1. the edge rolling cover and the outer diameter of the bearing inner ring adopt a non-contact sealing structure, so that grease is prevented from leaking, and friction torque is avoided;
2. the bottom of the hanging rubber check ring is rigidly matched with the outer diameter of the step of the inner ring, so that the hanging rubber check ring is not easy to fall off when being impacted by the outside, and meanwhile, external foreign matters are prevented from entering the bearing through the bottom of the hanging rubber check ring, and the sealing effect of the bearing is ensured;
3. the top of the rubberizing retaining ring is adapted to the outer ring of the bearing, the bottom of the rubberizing retaining ring is buckled to the inner ring of the bearing, the edge rolling cover and the bearing are plugged, external foreign matters can be effectively prevented from invading the inside of the bearing, and the sealing performance of the bearing is further improved.
Therefore, the double-layer sealing is adopted, the bearing is effectively prevented from being in direct contact with the external environment, and the sealing effect of the bearing is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings may be obtained according to the provided drawings without inventive effort to a person skilled in the art.
FIG. 1 is a cross-sectional view of an outer spherical ball bearing of the low friction torque seal configuration provided herein;
FIG. 2 is a cross-sectional view of the rubberized retainer ring of FIGS. 1 and 1;
FIG. 3 is an enlarged view of the portion I of FIG. 1;
fig. 4 is a cross-sectional view of a roll-up lid in the present application.
Wherein, the outer ring of the 1-bearing, the inner ring of the 2-bearing, the retainer ring of the 3-hanging glue and the 4-edge rolling cover;
11-outer ring mounting grooves, 12-outer ring step first surfaces, 13-outer ring step second surfaces, 14-outer ring step third surfaces, 15-outer ring step fourth surfaces, 21-inner ring steps, 31-multiple sealing lips, 32-plug-in components, 33-leaning components, 34-first connecting components, 41-clamping components, 42-second connecting components and 43-vertical blocking components;
311-first lip face, 312-second lip face, 313-third lip face, 314-fourth lip face.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
Referring to fig. 1 to 4, fig. 1 is a cross-sectional view of an outer spherical ball bearing of a low friction torque seal structure provided herein; FIG. 2 is a cross-sectional view of the rubberized retainer ring of FIGS. 1 and 1; FIG. 3 is an enlarged view of the portion I of FIG. 1; fig. 4 is a cross-sectional view of a roll-up lid in the present application.
The utility model provides an outer spherical ball bearing with a low friction moment sealing structure, which comprises a bearing body, wherein two sides of the bearing body are respectively provided with a circle of glue hanging retainer ring mounting part and a circle of hemming cover mounting part, the glue hanging retainer ring mounting part is of an annular structure and is arranged on a bearing outer ring 1 and a bearing inner ring 2, and the hemming cover mounting part is arranged on the bearing outer ring 1 at the inner side of the glue hanging retainer ring mounting part. The two glue hanging check ring installation parts are respectively buckled and provided with a glue hanging check ring 3, and the two hemming cover installation parts are respectively buckled and provided with a hemming cover 4.
In this application, outer lane and the inner circle of rubberizing retaining ring 3 all set up in rubberizing retaining ring installation department, can prevent that external foreign matter from invading inside the bearing through rubberizing retaining ring 3 bottom, guarantee the sealed effect of bearing. The upper part of the hemming cover 4 is clamped at the hemming cover mounting part, and the hemming cover 4 is in non-contact sealing with the outer diameter of the bearing inner ring 2, so that grease is prevented from leaking, and friction torque is avoided. This application is through setting up bilayer seal structure in the both sides of bearing, the effectual sealed effect of assurance bearing.
In a specific embodiment, the mounting portion of the rubberizing retainer ring includes a first outer ring mounting groove 11 formed in the bearing outer ring 1 and an inner ring step 21 formed in the bearing inner ring 2, the upper end of the rubberizing retainer ring 3 is in transition fit with the first outer ring mounting groove 11 or slightly interference fit with the first outer ring mounting groove, and the lower end of the rubberizing retainer ring 3 is seated on the inner ring step 21.
The glue hanging retainer ring 3 comprises a sealing lip 31, an inserting piece 32, a leaning piece 33 and a first connecting piece 34, wherein the sealing lip 31 is made of soft materials such as rubber and is in transition fit or slight interference contact with the first outer ring mounting groove 11.
The center of the bottom of the sealing lip 31 is provided with a slot, and the plug-in component 32 is vertically plugged in the slot. The insert 32, the leaning piece 33 and the first connecting piece 34 are all of steel structures, the leaning piece 33 is connected with the insert 32, the insert 32 is provided with an L-shaped section, and the first connecting piece 34 is obliquely connected with the insert 32 and the leaning piece 33.
The inner ring of the rubberizing retaining ring 3 is rigidly matched with the outer diameter of the inner ring step 21, and the inner ring and the rubberizing retaining ring can be riveted or stamped and fixed, so that the rubberizing retaining ring 3 is not easy to fall off when being impacted by the outside, and meanwhile, external foreign matters can be prevented from invading the inside of the bearing through the bottom of the rubberizing retaining ring 3, and the sealing effect of the bearing is ensured. The sealing lip 31 at the top of the hanging rubber retainer ring 3 is matched with the outer ring mounting groove 11, so that when the sealing lip 31 is impacted by external foreign matters, the sealing lip 31 can be close to the outer ring sealing groove, the external foreign matters are effectively prevented from invading the inside of the bearing, friction moment is greatly reduced, and simultaneously, the sealing lip 31 and a plurality of sides of the multi-step sealing groove of the bearing outer ring 1 form labyrinth seal, and the sealing performance of the bearing is further improved.
The hemming cover installation department is for locating the second outer race seal groove of bearing outer lane 1, and hemming cover 4 includes clamping piece 41, erects fender piece 43 and second connecting piece 42, and clamping piece 41 clamps in second outer race seal groove inside, erects fender piece 43 and connects clamping piece 41, and erects fender piece 43 vertical distribution, and second connecting piece 42 connects between clamping piece 41 and the erects fender piece 43. The hemming cover 4 is a steel piece, and the clamping piece 41 with the hemming top is fastened in the second sealing groove of the bearing outer ring 1 through riveting and other processes, so that the hemming cover 4 is less prone to falling off during operation. The vertical blocking piece 43 can effectively prevent external liquid and foreign matters from entering, and the vertical blocking piece 43 is in non-contact fit with the outer diameter of the bearing inner ring 2, so that the hemming cover 4 rotates along with the rotation of the outer ring in the rotation process of the bearing, and friction torque cannot be generated.
In a preferred scheme, two rubberizing retaining rings 3 are for bearing center longitudinal section symmetric distribution, symmetrical seal structure, sealed effect is better, and the processing of rubberizing retaining ring installation department of convenience. Furthermore, the two crimp caps 4 may also be distributed symmetrically with respect to the bearing center longitudinal section.
According to the outer spherical ball bearing with the low friction torque sealing structure, the double sealing structure of the combination of the edge rolling cover 4 and the glue hanging retainer ring 3 is adopted, the steel leaning piece 33 at the bottom of the glue hanging retainer ring 3 is fastened with the inner ring step 21, after the glue hanging retainer ring 3 is riveted by accurate calculation, the leaning piece 33 can be contacted with the inner ring step 21, meanwhile, the first face 311 of the sealing lip and the second face 312 of the sealing lip can be respectively in transition fit with the first face 12 of the outer ring step and the second face 13 of the outer ring step, and friction torque is reduced as much as possible; meanwhile, the structure is also beneficial to that when the sealing lip 31 is impacted by foreign matters from any angle outside, the sealing lip first surface 311 and the sealing lip second surface 312 are closer to the outer ring step first surface 12 and the outer ring step second surface 13 after being impacted, so that no gap exists between the sealing lip 31 and the outer ring step groove surface, and the outside foreign matters cannot invade the inside of the bearing; the third sealing lip surface 313 and the fourth sealing lip surface 314 are respectively in clearance fit with the third outer ring step surface 14 and the fourth outer ring step surface 15, so that no friction torque is generated; the multi-sealing lip 31 and the multi-step surface of the outer ring form multi-labyrinth seal mutually, so that the sealing performance is further improved.
Therefore, the double labyrinth sealing structure formed by the hemming cover 4 and the rubberizing retainer ring 3 can effectively improve the sealing strength of the bearing and enhance the sealing performance of the bearing; the sealing structure of the inner hemming cover 4 is non-contact type sealing, friction torque cannot be generated, and meanwhile, the sealing strength of the bearing can be effectively guaranteed through the steel skeleton structure. The sealing structure of the outer rubberizing retainer ring 3 adopts the structure of the unique sealing lip 31 at the top of the rubberizing retainer ring 3 to effectively cooperate with the special sealing groove of the outer ring, so that foreign matters can be effectively prevented from invading the inside of the bearing, the sealing performance of the bearing is greatly improved, meanwhile, the unique sealing lip 31 at the top is in transition cooperation with the special sealing groove of the outer ring, the friction torque is further reduced, the sealing performance of the bearing is ensured, and meanwhile, the bearing has the characteristic of low friction torque. Thereby improving sealing performance.
It should be noted that in this specification relational terms such as first and second are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The outer spherical ball bearing of the low friction torque seal configuration provided herein is described in detail above. Specific examples are set forth herein to illustrate the principles and embodiments of the present application, and the description of the examples above is only intended to assist in understanding the methods of the present application and their core ideas. It should be noted that it would be obvious to those skilled in the art that various improvements and modifications can be made to the present application without departing from the principles of the present application, and such improvements and modifications fall within the scope of the claims of the present application.
Claims (9)
1. The outer spherical ball bearing with the low friction moment sealing structure comprises a bearing body, and is characterized in that two sides of the bearing body are respectively provided with a circle of glue hanging check ring installation parts and a circle of curled edge cover installation parts which are distributed around the axial center in a circumferential direction, the glue hanging check ring installation parts are arranged on a bearing outer ring (1) and a bearing inner ring (2), and the curled edge cover installation parts are arranged on the bearing outer ring (1) at the inner side of the glue hanging check ring installation parts; further comprises:
the two hanging rubber check rings (3) are respectively buckled on the two hanging rubber check ring installation parts in a one-to-one correspondence manner;
and the two hemming covers (4) are respectively clamped at the upper parts of the two hemming cover mounting parts.
2. The outer spherical ball bearing with the low friction torque sealing structure according to claim 1, wherein the hanging rubber retainer ring mounting part comprises an outer ring mounting groove (11) arranged on the outer ring (1) of the bearing and an inner ring step (21) arranged on the inner ring (2) of the bearing, the upper end of the hanging rubber retainer ring (3) is adapted to the outer ring mounting groove (11), and the lower end of the hanging rubber retainer ring is seated on the inner ring step (21).
3. The outer spherical ball bearing of the low friction torque sealing structure according to claim 2, wherein the rubberized retainer ring (3) comprises a sealing lip (31) provided with a slot, an insert (32) inserted into the slot, an abutment (33) of L-shaped section abutting against the inner ring step (21), and a first connecting piece (34) connected between the insert (32) and the abutment (33) in an inclined manner.
4. The outer spherical ball bearing of the low friction torque seal structure according to claim 1, wherein the hemming cover mounting portion is a second outer ring seal groove provided to the bearing outer ring (1).
5. The outer spherical ball bearing of the low friction torque seal structure according to claim 4, wherein the crimp cap (4) includes a snap fitting (41) that snaps into the second outer ring seal groove, a vertical stopper (43), and a second connecting member (42) that connects the snap fitting (41) and the vertical stopper (43).
6. A low friction torque seal structured outer spherical ball bearing according to claim 3, wherein said abutment member (33) is a steel rubberized retainer ring.
7. The outer spherical ball bearing of a low friction torque seal arrangement according to claim 1, wherein the crimp cap (4) is a steel crimp cap.
8. The outer spherical ball bearing of the low friction torque sealing structure according to any one of claims 1 to 7, wherein two of the rubberized retainer rings (3) are symmetrically distributed with respect to a central longitudinal section of the bearing.
9. The outer spherical ball bearing of a low friction torque seal arrangement according to any one of claims 1 to 7, characterized in that two of said bead caps (4) are symmetrically distributed with respect to a bearing center longitudinal section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322394656.3U CN220581533U (en) | 2023-09-05 | 2023-09-05 | Outer spherical ball bearing with low friction moment sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322394656.3U CN220581533U (en) | 2023-09-05 | 2023-09-05 | Outer spherical ball bearing with low friction moment sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220581533U true CN220581533U (en) | 2024-03-12 |
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ID=90109093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322394656.3U Active CN220581533U (en) | 2023-09-05 | 2023-09-05 | Outer spherical ball bearing with low friction moment sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220581533U (en) |
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2023
- 2023-09-05 CN CN202322394656.3U patent/CN220581533U/en active Active
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