CN219242465U - Thin-wall full-installed sealing ball bearing - Google Patents

Thin-wall full-installed sealing ball bearing Download PDF

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Publication number
CN219242465U
CN219242465U CN202320029180.0U CN202320029180U CN219242465U CN 219242465 U CN219242465 U CN 219242465U CN 202320029180 U CN202320029180 U CN 202320029180U CN 219242465 U CN219242465 U CN 219242465U
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sealing
sealing groove
groove
ring
thin
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CN202320029180.0U
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郑延可
艾文军
熊兵
汪明亮
朱金萍
马铭
牛建平
孟庆丰
王振
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Bahuan Technology Group Co ltd
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Bahuan Technology Group Co ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction 

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Abstract

The utility model relates to the field of bearings, and particularly discloses a thin-wall full-load sealing ball bearing. The thin-wall full-packing sealing ball bearing comprises an inner ring, an outer ring and rolling bodies; an outer raceway and two outer sealing grooves are arranged on the inner edge of the outer ring; the outer sealing groove comprises a bottom surface, an inner side surface and an outer side surface, the inner side surface of the outer sealing groove is perpendicular to the axis, and the outer side surface is inclined outwards; an inner raceway and two inner sealing grooves are arranged on the outer edge of the inner ring, and the cross section of each inner sealing groove is arc-shaped; the sealing device comprises an outer sealing groove, an inner sealing groove, an outer sealing groove, a sealing groove and a sealing groove, wherein the inner edge of the sealing groove is positioned in the inner sealing groove and in interference fit with the inner sealing groove, and the outer edge of the sealing groove is positioned in the outer sealing groove and is in sliding contact sealing with the bottom surface of the outer sealing groove; the sealing ring is integrally formed by polytetrafluoroethylene materials. The thin-wall full-mounted sealing ball bearing well considers the thin wall and sealing characteristics, and can meet the performance requirements of light weight, small size and high bearing under special working conditions.

Description

Thin-wall full-installed sealing ball bearing
Technical Field
The utility model relates to the field of bearings, in particular to a thin-wall full-complement sealing ball bearing.
Background
Deep groove ball bearings are one of the most common bearing types, mainly for carrying radial loads. The ball filling angle of the conventional deep groove ball bearing is generally 186-194 degrees, and once the ball filling angle exceeds the range, the steel ball is difficult to be filled.
In order to adapt to some high-load working conditions, full-complement deep groove ball bearings have been developed. Full-complement deep-groove ball bearings are generally structured to include an outer race, an inner race, and a set of rolling elements, without the use of a cage. The bearing capacity of the bearing can be improved due to the fact that the number of rolling bodies between the inner ring and the outer ring is larger than that of a conventional deep groove ball bearing.
The special working condition of part has put forward higher requirement to the bearing, specifically includes: light weight, small size, high load bearing, high accuracy, low noise, sealing, etc., while needing to bear part of the axial load. In order to meet the requirements of light weight, small size and high bearing capacity at the same time, the wall thickness of the bearing ring can be reduced. However, in order to bear axial load, the flange coefficient of the channel is larger, meanwhile, due to the reduction of the wall thickness of the ferrule, the space reserved for the sealing structure is limited, and higher requirements are put on the design of the sealing structure of the bearing, so that the influence on the structural strength and friction characteristics of the bearing needs to be comprehensively considered while the sealing is realized.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the thin-wall full-load sealing ball bearing, which well combines the thin wall and sealing characteristics and can meet the performance requirements of light weight, small size and high bearing under special working conditions.
In order to solve the technical problems, the technical scheme provided by the utility model is as follows: the thin-wall full-installed sealed ball bearing comprises an inner ring, an outer ring and rolling bodies, wherein the rolling bodies are positioned between the outer ring and the inner ring;
the inner edge of the outer ring is provided with an outer rolling way and two outer sealing grooves, and the outer rolling way is positioned between the two outer sealing grooves; the outer sealing groove comprises a bottom surface, an inner side surface and an outer side surface, the inner side surface of the outer sealing groove is perpendicular to the axis, and the outer side surface is inclined outwards;
the outer edge of the inner ring is provided with an inner raceway and two inner sealing grooves, the inner raceway is positioned between the two inner sealing grooves, and the section of each inner sealing groove is arc-shaped;
the sealing device comprises an outer sealing groove, an inner sealing groove, an outer sealing groove, a sealing groove and a sealing groove, wherein the inner edge of the sealing groove is positioned in the inner sealing groove and in interference fit with the inner sealing groove, and the outer edge of the sealing groove is positioned in the outer sealing groove and is in sliding contact sealing with the bottom surface of the outer sealing groove; the sealing ring is integrally formed by polytetrafluoroethylene materials.
The polytetrafluoroethylene material has the characteristics of high temperature resistance and cold resistance, can work in various complex solvent environments, has a low friction coefficient, and can be well adapted to various complex working conditions. Compared with a conventional sealing ring compounded by a metal framework and a rubber sealing lip, the polytetrafluoroethylene material is adopted, so that the size and the installation space of the sealing ring are saved on the basis of ensuring the lubricating sealing performance, and the sealing ring is well adapted to the small-size requirement.
When in installation, the polytetrafluoroethylene material has certain deformability, so that the sealing ring can be pressurized into the inner sealing groove and the outer sealing groove under the action of external force.
Preferably, the sealing ring is made of reinforced fiber polytetrafluoroethylene material, so that the mechanical property of the sealing ring is further enhanced.
Preferably, the bottom surface width of the outer seal groove is G, and the radius of the circular arc of the inner seal groove is r, where g=r.
Preferably, a first outer side edge is provided on the outer side of the outer seal groove, the diameter of the first outer side edge is D1, the diameter of the flange of the outer raceway is D2, and the diameter of the bottom surface of the outer seal groove is D3, and then: d3-d1=0.5 to 0.8mm, D3-d2=1.2 to 1.8mm;
the outside of inner seal groove is equipped with the second outside limit, the diameter of second outside limit is d1, the flange diameter of interior raceway is d2, and the diameter of inner seal groove bottom is d3, and the circular arc radius of inner seal groove is r, then has: d1-d3=0.6 to 1.0mm, d 2-d3=2r.
Preferably, the outer edge of the first outer side edge is provided with a chamfer, so that the sealing ring is conveniently pressed into the outer sealing groove.
Preferably, the inclination angle of the outer side surface of the outer seal groove relative to the radial plane is 15-25 degrees.
Preferably, the thickness of the outer ring corresponding to the bottom surface of the outer raceway is not less than 2mm.
Preferably, the interference between the inner edge of the sealing ring and the inner sealing groove is not smaller than 0.2mm.
Preferably, the thickness of the sealing ring is at least 0.1mm smaller than the width of the bottom surface of the outer sealing groove.
Preferably, the distance between the inner side surface of the outer seal groove and the corresponding end surface of the outer ring is H, the distance between the inner edge of the inner seal groove and the corresponding end surface of the inner ring is H, the width of the outer ring is B, and the width of the inner ring is B, and then: H-h=b/2-B/2+0.3.
Drawings
FIG. 1 is a schematic view of a thin-walled full-ball bearing according to the present embodiment;
FIG. 2 is a schematic view of the structure of the outer ring of the thin-walled fully-enclosed ball bearing according to the present embodiment;
FIG. 3 is an enlarged view of a portion of the outer race of the thin-walled fully-enclosed ball bearing of the present embodiment;
FIG. 4 is a schematic view of the inner ring of the thin-walled fully-enclosed ball bearing according to the present embodiment;
fig. 5 is a partial enlarged view of an inner ring in the thin-walled full-seal ball bearing of the present embodiment.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Examples
As shown in fig. 1, the thin-wall full-load sealed ball bearing comprises an inner ring 3, an outer ring 1 and rolling bodies 4, wherein the rolling bodies 4 are positioned between the outer ring 1 and the inner ring 3.
As shown in fig. 2 and 3, the inner edge of the outer ring 1 is provided with an outer raceway 12 and two outer seal grooves 11, and the outer raceway 12 is located between the two outer seal grooves 11. The outer seal groove 11 includes a bottom surface 113, an inner side surface 114 and an outer side surface 112, the inner side surface 114 of the outer seal groove 11 is perpendicular to the axis, the outer side surface 112 is inclined outwards, specifically, an inclination angle of the outer side surface 112 of the outer seal groove 11 relative to the radial plane is denoted as α, α=15° to 25 °.
As shown in fig. 4 and 5, the outer edge of the inner ring 3 is provided with an inner raceway 31 and two inner seal grooves 32, the inner raceway 31 is located between the two inner seal grooves 32, and the section of the inner seal groove 32 is circular arc.
As shown in fig. 1, the sealing device further comprises two sealing rings 2, wherein the inner edges of the sealing rings 2 are positioned in the inner sealing groove 32 and are in interference fit with the inner sealing groove 32, the outer edges of the sealing rings 2 are positioned in the outer sealing groove 11 and are in sliding contact sealing with the bottom surface 113 of the outer sealing groove 11, and specifically, the interference between the inner edges of the sealing rings 2 and the inner sealing groove 32 is not less than 0.2mm. The thickness of the sealing ring 2 is at least 0.1mm smaller than the width of the bottom surface 113 of the outer sealing groove 11.
The sealing ring 2 is integrally formed by polytetrafluoroethylene materials, specifically, the sealing ring 2 is made of reinforced fiber polytetrafluoroethylene materials, and the mechanical properties of the sealing ring 2 are further enhanced.
The polytetrafluoroethylene material has the characteristics of high temperature resistance and cold resistance, can work in various complex solvent environments, has a low friction coefficient, and can be well adapted to various complex working conditions. Compared with the conventional sealing ring 2 compounded by the metal framework and the rubber sealing lip, the polytetrafluoroethylene material is adopted, so that the size and the installation space of the sealing ring 2 are saved on the basis of ensuring the lubricating sealing performance, and the requirement of small size is well met.
During installation, the polytetrafluoroethylene material has certain deformability, so that the sealing ring 2 can be pressurized into the inner sealing groove 32 and the outer sealing groove 11 under the action of external force.
As shown in fig. 3 and 5, specifically, the width of the bottom surface 113 of the outer seal groove 11 is G, and the radius of the circular arc of the inner seal groove 32 is r, where g=r. The thickness of the outer ring 1 corresponding to the bottom surface 113 of the outer raceway 12 is not less than 2mm.
As shown in fig. 3, specifically, a first outer side edge 111 is disposed on the outer side of the outer seal groove 11, the diameter of the first outer side edge 111 is D1, the diameter of the flange of the outer raceway 12 is D2, and the diameter of the bottom surface 113 of the outer seal groove 11 is D3, where: d3-d1=0.5 to 0.8mm, d3-d2=1.2 to 1.8mm. The outer edge of the first outer side 111 is provided with a chamfer, so that the sealing ring 2 is conveniently pressed into the outer sealing groove 11.
As shown in fig. 5, specifically, the outer side of the inner seal groove 32 is provided with a second outer side edge 322, the diameter of the second outer side edge 322 is d1, the diameter of the flange of the inner race 31 is d2, and the diameter of the bottom end of the inner seal groove 32 is d3, which includes: d1-d3=0.6 to 1.0mm, d 2-d3=2r.
As shown in fig. 2 to 5, specifically, the distance between the inner side surface 114 of the outer seal groove 11 and the corresponding end surface of the outer ring 1 is H, the distance between the inner edge of the inner seal groove 32 and the corresponding end surface of the inner ring 3 is H, the width of the outer ring 1 is B, and the width of the inner ring 3 is B, where: H-h=b/2-B/2+0.3.
In summary, the foregoing description is only of the preferred embodiments of the utility model, and is not intended to limit the utility model to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.

Claims (10)

1. The utility model provides a thin wall full dress sealed ball bearing, includes inner circle, outer lane and rolling element, the rolling element be located between outer lane and the inner circle, its characterized in that:
the inner edge of the outer ring is provided with an outer rolling way and two outer sealing grooves, and the outer rolling way is positioned between the two outer sealing grooves; the outer sealing groove comprises a bottom surface, an inner side surface and an outer side surface, the inner side surface of the outer sealing groove is perpendicular to the axis, and the outer side surface is inclined outwards;
the outer edge of the inner ring is provided with an inner raceway and two inner sealing grooves, the inner raceway is positioned between the two inner sealing grooves, and the section of each inner sealing groove is arc-shaped;
the sealing device comprises an outer sealing groove, an inner sealing groove, an outer sealing groove, a sealing groove and a sealing groove, wherein the inner edge of the sealing groove is positioned in the inner sealing groove and in interference fit with the inner sealing groove, and the outer edge of the sealing groove is positioned in the outer sealing groove and is in sliding contact sealing with the bottom surface of the outer sealing groove; the sealing ring is integrally formed by polytetrafluoroethylene materials.
2. The thin-walled full complement sealed ball bearing of claim 1 wherein: the sealing ring is made of reinforced fiber polytetrafluoroethylene materials.
3. The thin-walled full complement sealed ball bearing of claim 1 wherein: the bottom width of the outer seal groove is G, and the radius of the circular arc of the inner seal groove is r, and g=r.
4. The thin-walled full complement sealed ball bearing of claim 1 wherein: the outside of outer seal groove is equipped with first outside limit, the diameter of first outside limit is D1, the flange diameter of outer raceway is D2, and the diameter of outer seal groove bottom surface is D3, then has: d3-d1=0.5 to 0.8mm, D3-d2=1.2 to 1.8mm;
the outside of inner seal groove is equipped with the second outside limit, the diameter of second outside limit is d1, the flange diameter of interior raceway is d2, and the diameter of inner seal groove bottom is d3, and the circular arc radius of inner seal groove is r, then has: d1-d3=0.6 to 1.0mm, d 2-d3=2r.
5. The thin-walled, full-complement sealed ball bearing of claim 4 wherein: the outer edge of the first outer side edge is provided with a chamfer.
6. The thin-walled full complement sealed ball bearing of claim 1 wherein: and the inclination angle of the outer side surface of the outer seal groove relative to the radial plane is 15-25 degrees.
7. The thin-walled full complement sealed ball bearing of claim 1 wherein: the thickness of the outer ring corresponding to the bottom surface of the outer raceway is not less than 2mm.
8. The thin-walled full complement sealed ball bearing of claim 1 wherein: and the interference magnitude between the inner edge of the sealing ring and the inner sealing groove is not less than 0.2mm.
9. The thin-walled full complement sealed ball bearing of claim 1 wherein: the thickness of the sealing ring is at least 0.1mm smaller than the width of the bottom surface of the outer sealing groove.
10. The thin-walled fully sealed ball bearing of any of claims 1-9, wherein: the distance between the inner side surface of the outer seal groove and the corresponding end surface of the outer ring is H, the distance between the inner edge of the inner seal groove and the corresponding end surface of the inner ring is H, the width of the outer ring is B, and the width of the inner ring is B, then the inner ring is: H-h=b/2-B/2+0.3.
CN202320029180.0U 2023-01-06 2023-01-06 Thin-wall full-installed sealing ball bearing Active CN219242465U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320029180.0U CN219242465U (en) 2023-01-06 2023-01-06 Thin-wall full-installed sealing ball bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320029180.0U CN219242465U (en) 2023-01-06 2023-01-06 Thin-wall full-installed sealing ball bearing

Publications (1)

Publication Number Publication Date
CN219242465U true CN219242465U (en) 2023-06-23

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ID=86841242

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320029180.0U Active CN219242465U (en) 2023-01-06 2023-01-06 Thin-wall full-installed sealing ball bearing

Country Status (1)

Country Link
CN (1) CN219242465U (en)

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