CN218913482U

CN218913482U - Deep groove ball bearing with sealing ring

Info

Publication number: CN218913482U
Application number: CN202223052641.0U
Authority: CN
Inventors: 黄斌; 何钟萍; 朱文
Original assignee: Xinchang Xinglun Bearing Co ltd
Current assignee: Xinchang Xinglun Bearing Co ltd
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2023-04-25
Anticipated expiration: 2032-11-16

Abstract

The utility model discloses a deep groove ball bearing with a sealing ring, which comprises: the ball bearing comprises an outer ring, a retainer, balls and an inner ring, wherein a sealing ring is arranged between the outer ring and the inner ring, and the retainer is covered by the sealing ring; a sealing gap is reserved between the sealing ring and the outer wall of the inner ring. The utility model has novel structure and reliable sealing, the sealing ring adopts a non-contact design, the rotation moment is reduced, the rotation of the inner ring relative to the outer ring is not influenced, the friction force born by the sealing ring is small, the heat is less, and the service life is long.

Description

Deep groove ball bearing with sealing ring

Technical Field

The utility model belongs to the technical field of bearings, and particularly relates to a deep groove ball bearing with a sealing ring.

Background

The radial ball bearing is a kind of rolling bearing with wide application, and features small friction resistance and high rotation speed, and may be used in radial load bearing machine parts or radial and axial combined load bearing machine parts, such as small power motor, linear guide rail, industrial robot, etc.

The prior patent literature discloses a deep groove ball bearing (bulletin number: CN 217603165U), in the technical scheme, a retainer and steel balls are exposed, dust is easy to enter a roller path of the bearing, the steel balls are worn too fast, the service life is short, and frequent maintenance is needed.

The prior art discloses a "deep groove ball bearing" (publication number: CN 217002665U), which describes that the bearing is an open type bearing, is oil lubricated, has no sealing structure, and has the same technical problems as described above.

Disclosure of Invention

The utility model aims to solve the technical problems in the prior art and provide the deep groove ball bearing with the sealing ring, which has the advantages of novel structure, reliable sealing, low friction force, less heat and long service life, wherein the sealing ring adopts a non-contact design, reduces the rotation moment, does not influence the rotation of the inner ring relative to the outer ring, and is provided with the sealing ring.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a deep groove ball bearing with a seal ring, comprising: outer lane, holder, ball and inner circle, its characterized in that: a sealing ring is arranged between the outer ring and the inner ring, and the retainer is covered by the sealing ring; a sealing gap is reserved between the sealing ring and the outer wall of the inner ring. The deep groove ball bearing is novel in structure, reliable in sealing, and the sealing ring is designed in a non-contact mode, so that the rotation moment is reduced, the inner ring is not influenced to rotate relative to the outer ring, the friction force born by the sealing ring is small, the heating is less, and the service life is long.

Further, be equipped with the bulge in the hole of inner circle, be equipped with the installation counter bore on the bulge, wear to establish the screw in the installation counter bore, with pivot fixed connection, compare in prior art inner circle and pivot adoption interference fit mode, improved the connection reliability of inner circle and pivot, easy dismounting also.

Further, the length of the protruding part is smaller than the length of the inner hole of the inner ring, the screw can be suitable for screws with shorter length, the length requirement of the screws is reduced, and the applicability is stronger.

Furthermore, the sealing gap is 0.1-0.2mm, the non-contact design is adopted, the rotation moment is reduced, the sealing ring does not influence the rotation of the inner ring relative to the outer ring, the friction force born by the sealing ring is small, the heating is less, the service life is long, and the sealing ring can be suitable for working conditions with relatively bad running environment and certain requirements on the sealing performance.

Furthermore, the framework is arranged in the sealing ring, so that the rigidity of the sealing ring is improved, the original shape is kept, the sealing ring is not easy to deform, and an annular gap between the outer ring and the inner ring is stably covered, and the sealing ring is reliable to use.

Further, the retainer comprises two half retainers, the two half retainers are fixed through rivets, the split type design reduces the manufacturing requirement, the retainer can be split into two, damaged parts can be replaced independently, the ball is convenient to install, the ball sphere can be guaranteed to be matched with the retainer pocket Kong Qiumian, and therefore the guiding performance of the ball is improved.

Further, the clamping groove matched and connected with the sealing ring is formed in the inner wall of the outer ring, so that the sealing ring is limited to freely move and fall off, and the installation reliability of the sealing ring is improved.

Further, the arc groove is formed in the peripheral wall of the outer ring and can be matched with the cylindrical guide rail for use, so that the stress of the bearing is reasonably distributed, and the bearing capacity of the bearing is improved.

Further, the two ends of the inner hole of the inner ring are provided with the expansion parts, so that a guiding effect is achieved, the rotating shaft is convenient to be installed in the inner hole of the inner ring, and the convenience of assembly is improved.

Due to the adoption of the technical scheme, the utility model has the following beneficial effects:

1. the retainer is covered by the sealing ring, so that the balls are prevented from being easily worn due to the fact that dust enters the rollaway nest, and the service life is prolonged; the built-in framework improves the rigidity of the sealing ring, keeps the original shape and is not easy to deform, thereby stably covering the annular gap between the outer ring and the inner ring and being reliable in use.

2. The sealing gap is reserved between the sealing ring and the outer wall of the inner ring, the non-contact design is adopted, the rotation moment is reduced, the inner ring is not influenced to rotate relative to the outer ring, the friction force born by the sealing ring is small, the heating is less, the service life is long, and the sealing ring can be suitable for working conditions with relatively severe running environment and certain requirements on the sealing performance.

3. The inner hole of the inner ring is provided with the bulge, the screw is penetrated into the mounting counter bore of the bulge and fixedly connected with the rotating shaft, and compared with the prior art that the inner ring and the rotating shaft adopt an interference fit mode, the connection reliability of the inner ring and the rotating shaft is improved, and the dismounting is also convenient.

Drawings

The utility model is further described below with reference to the accompanying drawings:

FIG. 1 is a schematic view of a deep groove ball bearing with a seal ring according to the present utility model;

FIG. 2 is a schematic view of the structure in the direction A in FIG. 1;

FIG. 3 is a schematic view of the connection between the seal ring and the outer ring in the present utility model;

FIG. 4 is a schematic view of the installation of the seal ring and inner ring of the present utility model.

In the figure: 1-an outer ring; 2-balls; 3-an inner ring; 4-half-holders; 5-rivets; 6, a sealing ring; 7-a framework; 8-clamping grooves; 9-sealing the gap; 10-arc grooves; 11-a projection; 12-installing a counter bore; 13-flaring portion.

Detailed Description

As shown in fig. 1 to 4, the deep groove ball bearing with a seal ring according to the present utility model comprises: the ball bearing comprises an outer ring 1, a retainer, balls 2 and an inner ring 3, wherein the balls 2 are steel balls, raceways which are matched with each other are arranged on the outer wall of the inner ring 3 and the inner wall of the outer ring 1, and the balls 2 are arranged in the raceways through the retainer. The outer ring 1 and the inner ring 3 are made of martensitic stainless steel, and have the characteristics of strong corrosion resistance and wear resistance.

The retainer comprises two half retainers 4, the two half retainers 4 are fixed through rivets 5, the split design reduces the manufacturing requirement, the retainer can be split into two, damaged parts can be replaced independently, the ball 2 is convenient to install, the spherical surface of the ball 2 can be guaranteed to be matched with the retainer pocket Kong Qiumian, and therefore the guiding performance of the ball 2 is improved.

As shown in fig. 1, a sealing ring 6 is arranged between the outer ring 1 and the inner ring 3, the sealing ring 6 can be made of nitrile rubber, the sealing ring 6 covers the retainer, so that the balls 2 are prevented from being easily worn due to dust entering the rollaway nest, and the service life is prolonged. The framework 7 is arranged in the sealing ring 6, and the framework 7 can be made of steel plates or steel sheets, so that the rigidity of the sealing ring 6 is improved, the original shape is kept, the deformation is difficult, and the annular gap between the outer ring 1 and the inner ring 3 is stably covered, and the use is reliable.

As shown in fig. 3 and 4, a clamping groove 8 which is matched and connected with one end of the sealing ring 6 is arranged on the inner wall of the outer ring 1, so that the sealing ring 6 is limited to freely move and fall off, and the installation reliability of the sealing ring 6 is improved. A sealing gap 9 is reserved between the other end of the sealing ring 6 and the outer wall of the inner ring 3, the sealing gap 9 is 0.1-0.2mm, a non-contact design is adopted, the rotation moment is reduced, the sealing ring 6 does not influence the rotation of the inner ring 3 relative to the outer ring 1, the friction force born by the sealing ring 6 is small, the heating is less, the service life is long, and the sealing ring is suitable for working conditions with relatively severe running environment and certain requirements on sealing performance.

The outer circumferential wall of the outer ring 1 is provided with an arc groove 10 which can be matched with a cylindrical guide rail for use, so that the stress of the bearing is reasonably distributed, and the bearing capacity of the bearing is improved.

The protruding portion 11 is arranged in the inner hole of the inner ring 3, the length of the protruding portion 11 is smaller than that of the inner hole of the inner ring 3, the protruding portion can be suitable for screws with short lengths, the length requirement of the screws is reduced, and the applicability is stronger. The bulge 11 is provided with the mounting counter bore 12, and screws are arranged in the mounting counter bore 12 in a penetrating manner and fixedly connected with the rotating shaft, compared with the prior art that the inner ring 3 and the rotating shaft are in interference fit, the connection reliability of the inner ring 3 and the rotating shaft is improved, and the dismounting is also convenient.

The two ends of the inner hole of the inner ring 3 are provided with the expansion parts 13, so that the guide effect is achieved, the rotating shaft is convenient to be installed in the inner hole of the inner ring 3, and the convenience of assembly is improved.

The above is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any simple changes, equivalent substitutions or modifications and the like made on the basis of the present utility model to solve the substantially same technical problems and achieve the substantially same technical effects are included in the scope of the present utility model.

Claims

1. A deep groove ball bearing with a seal ring, comprising:

an outer ring, a retainer, balls and an inner ring,

the method is characterized in that:

a sealing ring is arranged between the outer ring and the inner ring, and the retainer is covered by the sealing ring;

and a sealing gap is reserved between the sealing ring and the outer wall of the inner ring.

2. The deep groove ball bearing with a seal ring according to claim 1, wherein: the inner hole of the inner ring is provided with a protruding portion, and the protruding portion is provided with a mounting counter bore.

3. The deep groove ball bearing with a seal ring according to claim 2, wherein: the length of the protruding part is smaller than the length of the inner hole of the inner ring.

4. The deep groove ball bearing with a seal ring according to claim 1, wherein: the sealing gap is 0.1-0.2mm.

5. The deep groove ball bearing with a seal ring according to claim 1, wherein: and a framework is arranged in the sealing ring.

6. The deep groove ball bearing with a seal ring according to claim 1, wherein: the retainer comprises two half retainers, and the two half retainers are fixed by rivets.

7. The deep groove ball bearing with a seal ring according to claim 1, wherein: and a clamping groove matched and connected with the sealing ring is formed in the inner wall of the outer ring.

8. The deep groove ball bearing with a seal ring according to claim 1, wherein: and an arc groove is formed in the outer peripheral wall of the outer ring.

9. The deep groove ball bearing with a seal ring according to claim 1, wherein: and the two ends of the inner hole of the inner ring are provided with expansion parts.