CN213839303U

CN213839303U - Deep groove ball bearing sealing ring

Info

Publication number: CN213839303U
Application number: CN202022286420.4U
Authority: CN
Inventors: 周明海
Original assignee: NINGBO WANFENG BEARING CO Ltd
Current assignee: NINGBO WANFENG BEARING CO Ltd
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2021-07-30
Anticipated expiration: 2030-10-14

Abstract

A deep groove ball bearing sealing ring comprises a bearing outer ring, a bearing inner ring, balls arranged between the bearing outer ring and the bearing inner ring, and a retainer used for fixing the balls, wherein a sealing ring is also arranged between the bearing outer ring and the bearing inner ring, and a first sealing lip extends towards the inner surface of the bearing outer ring; the seal ring extends towards the ball bearing direction to form a second seal lip, and the second seal lip is in interference fit with the inner surface of the bearing outer ring; the sealing ring is towards the surface extension of bearing inner race has third seal lip and fourth seal lip, the third seal lip with the fourth seal lip becomes the herringbone shape and with bearing inner race surface formation clearance fit.

Description

Deep groove ball bearing sealing ring

Technical Field

The utility model relates to a bearing seal technical field, concretely relates to deep groove ball bearing sealing washer.

Background

The deep groove ball bearing is the most representative rolling bearing, has the advantages of small friction coefficient, high limit rotating speed, simple structure, low manufacturing cost, easy achievement of higher manufacturing precision, various size ranges and form changes, and is widely applied as a gearbox bearing.

With the development of the mechanical industry, the requirements on the bearing are higher and higher, and particularly, in severe working conditions accompanied by sand, dust, impurities and the like, the dust, mud and grease can be effectively prevented from entering and flowing out.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a deep groove ball bearing sealing washer in order to solve the defect that prior art exists.

In order to realize the purpose, the utility model discloses a technical scheme is:

In one embodiment, the bearing outer race inner surface defines a first groove for receiving the first seal lip.

In one embodiment, the first sealing lip forms an interference fit with the first groove.

In one embodiment, the bearing inner ring is provided with a second groove and a third groove on the outer surface, and the second groove and the third groove are matched with the third sealing lip and the fourth sealing lip.

In one embodiment, the third and fourth sealing lips form a clearance fit with the second and third grooves, respectively.

In one embodiment, a gap is formed between the first sealing lip and the sealing ring.

In one embodiment, a skeleton is embedded in each of the first sealing ring and the second sealing ring, and the skeleton is a steel skeleton.

In one embodiment, the material of the first seal ring and the second seal ring is nitrile rubber.

The utility model has the advantages that: the utility model discloses a first seal lip and second seal lip on the sealing washer form interference fit with the bearing inner race internal surface, and third seal lip and fourth seal lip become the herringbone shape and form clearance fit with the bearing inner race surface for when bearing inner race or bearing inner race rotate, can effectually prevent the lubricating grease outflow in the bearing, can also prevent the lubricating grease outflow in the bearing simultaneously further.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the sealing ring of the present invention.

In the figure, 10, a bearing outer ring, 15, balls, 20, a bearing inner ring, 25, a retainer, 30, a sealing ring, 31, second sealing lips, 32, third sealing lips, 33, fourth sealing lips, 34, first sealing lips, 35 and a notch.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments. In the following description, feature details such as specific configurations and components are provided only to help a full understanding of the embodiments of the present invention. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of the processes should be determined by the functions and the internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In the embodiments provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.

The utility model provides a deep groove ball bearing sealing washer.

As shown in fig. 1-2, a deep groove ball bearing seal ring includes an outer bearing ring 10, an inner bearing ring 20, balls 15 mounted between the outer bearing ring 10 and the inner bearing ring 20, and a retainer 25 for fixing the balls 15, wherein a seal ring 30 is further disposed between the outer bearing ring 10 and the inner bearing ring 20, and a first seal lip 34 extends from the seal ring 30 toward an inner surface of the outer bearing ring 10; the seal ring 30 extends towards the balls 15 to form a second seal lip 31, and the second seal lip 31 is in interference fit with the inner surface of the bearing outer ring 10; the seal ring 30 extends towards the outer surface of the bearing inner ring 20 to form a third seal lip 32 and a fourth seal lip 33, and the third seal lip 32 and the fourth seal lip 33 are in a herringbone shape and form clearance fit with the outer surface of the bearing inner ring 20. Therefore, when the bearing outer ring 10 or the bearing inner ring 20 rotates, the outflow of the grease in the bearing can be effectively prevented, and the outflow of the grease in the bearing can be further prevented.

Further, the bearing outer ring 10 internal surface is seted up and is used for holding first seal lip 34's first recess, just first seal lip 34 with first recess forms interference fit to can fix sealing washer 30 and form interference fit through the first recess on the bearing outer ring 10, can prevent the lubricating grease in the bearing leakage.

Furthermore, a second groove and a third groove matched with the third sealing lip 32 and the fourth sealing lip (33) are formed in the outer surface of the bearing inner ring 20, and the third sealing lip 32 and the fourth sealing lip 33 are in clearance fit with the second groove and the third groove respectively. So that the third seal lip 32 and the fourth seal lip 33 can rotate on the bearing inner ring 20, and the lubricating grease in the bearing can be effectively prevented from leaking through clearance fit.

Further, a gap 35 is formed between the first sealing lip 34 and the sealing ring 30. Thereby allowing the seal ring 30 to be conveniently mounted on the bearing.

Further, the first sealing ring 30 and the second sealing ring 40 are both embedded with a skeleton, and the skeleton is a steel skeleton.

In addition, the materials of the first seal ring 30 and the second seal ring 40 are both nitrile rubber.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a deep groove ball bearing sealing washer, includes bearing inner race (10), bearing inner race (20) and installs ball (15) between bearing inner race (20) and bearing outer race (10) and be used for fixing holder (25) of ball (15), its characterized in that: a sealing ring (30) is further arranged between the bearing outer ring (10) and the bearing inner ring (20), and a first sealing lip (34) extends from the sealing ring (30) towards the inner surface of the bearing outer ring (10); the seal ring (30) extends towards the direction of the balls (15) to form a second seal lip (31), and the second seal lip (31) is in interference fit with the inner surface of the bearing outer ring (10); the seal ring (30) extends towards the outer surface of the bearing inner ring (20) to form a third seal lip (32) and a fourth seal lip (33), and the third seal lip (32) and the fourth seal lip (33) form a herringbone shape and form clearance fit with the outer surface of the bearing inner ring (20).

2. The deep groove ball bearing seal ring of claim 1, wherein: the bearing outer ring (10) is provided with a first groove on the inner surface for accommodating the first sealing lip (34).

3. The deep groove ball bearing seal ring of claim 2, wherein: the first sealing lip (34) forms an interference fit with the first groove.

4. The deep groove ball bearing seal ring of claim 1, wherein: and a second groove and a third groove which are matched with the third sealing lip (32) and the fourth sealing lip (33) are formed in the outer surface of the bearing inner ring (20).

5. The deep groove ball bearing seal ring of claim 4, wherein: the third sealing lip (32) and the fourth sealing lip (33) form a clearance fit with the second groove and the third groove, respectively.

6. The deep groove ball bearing seal ring of claim 1, wherein: a gap (35) is formed between the first sealing lip (34) and the sealing ring (30).

7. The deep groove ball bearing seal ring of claim 1, wherein: the sealing ring (30) is embedded with a skeleton, and the skeleton is a steel skeleton.

8. The deep groove ball bearing seal ring of claim 7, wherein: the sealing ring (30) is made of nitrile rubber.