CN214146255U

CN214146255U - Automobile hub bearing with good sealing effect

Info

Publication number: CN214146255U
Application number: CN202021787025.8U
Authority: CN
Inventors: 范中伟
Original assignee: Xinchang Shi Da Bearing Co ltd
Current assignee: Xinchang Shi Da Bearing Co ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-09-07
Anticipated expiration: 2030-08-24

Abstract

The utility model relates to a bearing technical field, specifically speaking relate to a sealed effectual automobile wheel hub bearing. The sealing lip of the existing bearing sealing ring is short in length and fails after deformation, and dust, moisture and the like enter the inner part of the bearing to cause failure of the bearing, so that the service life is shortened. The utility model provides a sealed effectual automobile wheel hub bearing, the inner circle is set up by 2 subtend laminatings, the oil blanket subassembly includes first, two dogs and sealing washer, first dog comprises four bibliographic categories branches, two radial vertical sections, axial horizontal section, the slant changeover portion between two vertical sections, the second dog is L shape structure, it is first, two dog subtend interval sets up, the sealing washer cover is established at first dog both ends and outside, the sealing washer is equipped with two seal lips of V-arrangement in first dog axial department, radial department is equipped with the oblique seal lip. The four-section type setting of first dog sets up seal lip in second dog two places, has lengthened sealed length, has guaranteed sealed, has improved the life of bearing.

Description

Automobile hub bearing with good sealing effect

Technical Field

The utility model relates to a bearing technical field, more specifically say and relate to a sealed effectual automobile wheel hub bearing.

Background

With the increasing popularization of automobiles, as an important part of an automobile, a hub bearing needs to bear both axial load and radial load, and dust and the like easily enter the bearing due to the fact that the automobile is outside for a long time. The existing shaft bears the influence of the environment, the sealing lip of the sealing ring is short in length and is easy to lose efficacy after deformation, dust, moisture and the like enter the inside of the bearing, the bearing is lost efficacy, the service life is shortened, replacement treatment is needed, and the performance of an automobile is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a long and sealed effectual automobile wheel hub bearing of seal lip length to prior art not enough.

An automobile hub bearing with good sealing effect comprises an outer ring, an inner ring, a retainer and a steel ball, wherein the inner ring is formed by laminating 2 pieces of materials in opposite directions, the inner ring and the retainer are respectively provided with an outward protruding step, and the two steps are arranged in opposite directions; the automobile hub bearing also comprises oil seal assemblies positioned on two sides between the outer ring and the inner ring; the oil seal assembly comprises a first stop block, a second stop block and a sealing ring, wherein the first stop block is composed of four parts, two radial vertical sections, an axial transverse section and a slant transition section between the two radial vertical sections, the second stop block is of an L-shaped structure, the first stop block and the second stop block are arranged at opposite intervals, the sealing ring is sleeved at two ends and the outer side of the first stop block, two V-shaped sealing lips are arranged at the axial position of the first stop block, a slant sealing lip is arranged at the radial position of the second stop block, and the sealing lips are in interference fit with the second stop block. The four-section type setting of first dog has lengthened sealedly, and sets up seal lip in second dog two places, has further lengthened sealed length, has guaranteed sealedly, has improved the life of bearing.

As a further improvement and supplement to the above solution, the present invention further comprises the following additional technical features:

the outer side of the oil seal assembly on one side is also provided with a magnetic retaining ring which is sleeved on the second retaining block, most dust and moisture can be blocked, and magnetic induction can be carried out.

The outer circle periphery of the outer ring and the inner hole outer side arc of the inner ring are in transition, and the installation is convenient.

The retainer is made of nylon, and is light in weight and long in service life.

The sealing ring is made of butadiene-acrylonitrile rubber and has long service life.

Use the utility model discloses following beneficial effect can be reached: the utility model has the advantages of reasonable structure, seal lip length is longer, has reduced the wearing and tearing of seal lip, has reduced the heat that the seal lip produced because of the friction, has effectively sealed and dustproof, has prolonged the life of bearing, has improved economic benefits.

Drawings

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

Fig. 2 is a partial enlarged view of the position a shown in fig. 1 of the present invention.

Detailed Description

The following detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in fig. 1-2, the utility model relates to an automobile wheel hub bearing with good sealing effect.

This embodiment sealed effectual automobile wheel hub bearing, including outer lane 1, inner circle 2, holder 3 and steel ball 4, inner circle 2 set up by 2 subtend laminatings, inner circle 2 and holder 3 set up the step of evagination respectively, two steps set up in opposite directions for the location. The automobile hub bearing further comprises oil seal assemblies 5 positioned on two sides between the outer ring 1 and the inner ring 2; the oil seal assembly 5 comprises a first stop block 51, a second stop block 52 and a seal ring 53, wherein the first stop block 51 is composed of four parts, two radial vertical sections, an axial transverse section and an oblique transition section between the two radial vertical sections, the second stop block 52 is of an L-shaped structure, the first stop block 51 and the second stop block 52 are oppositely arranged at intervals, the first stop block 51 is attached to the outer ring 1, and the second stop block 52 is attached to the inner ring 2. The sealing rings 53 are sleeved at two ends and the outer side of the first stop block 51 and cover the first stop block 51 to form three sealing areas, two V-shaped sealing lips are arranged at the axial position of the first stop block 51 of the sealing rings 53, an oblique sealing lip is arranged at the radial position of the second stop block 52, and the sealing lips are in interference fit with the second stop block 52.

Further, a magnetic retainer ring 54 is further disposed on the outer side of the oil seal assembly 5 on the one side and sleeved on the second stopper 52.

Furthermore, the circumference of the outer circle of the outer ring 1 is in arc transition with the outer side of the inner hole of the inner ring 2.

Further, the material of the retainer 3 is nylon.

Furthermore, the material of the sealing ring 53 is nitrile rubber.

The above is the preferred embodiment of the present invention, and the protection scope of the present invention is not limited, and the deformation and improvement made by the design idea of the present invention for those skilled in the art should be considered as the protection scope of the present invention.

Claims

1. The utility model provides a sealed effectual automobile wheel hub bearing, includes outer lane (1), inner circle (2), holder (3) and steel ball (4), its characterized in that: the inner ring (2) is formed by 2 pieces of opposite attaching, the inner ring (2) and the retainer (3) are respectively provided with an outward convex step, and the two steps are arranged oppositely; the automobile hub bearing further comprises oil seal assemblies (5) positioned on two sides between the outer ring (1) and the inner ring (2); the oil seal assembly (5) comprises a first stop block (51), a second stop block (52) and a sealing ring (53), wherein the first stop block (51) is composed of four parts, two radial vertical sections, an axial transverse section and an oblique transition section between the two radial vertical sections, the second stop block (52) is of an L-shaped structure, the first stop block (51) and the second stop block (52) are oppositely arranged at intervals, the sealing ring (53) is sleeved at two ends and the outer side of the first stop block (51), two V-shaped sealing lips are arranged at the axial position of the first stop block (51) and are arranged at the radial position of the second stop block (52), and the sealing lips are in interference fit with the second stop block (52).

2. The automobile hub bearing with good sealing effect as claimed in claim 1, wherein: and a magnetic retainer ring (54) sleeved on the second stop block (52) is further arranged on the outer side of the oil seal assembly (5) on one side.

3. The automobile hub bearing with good sealing effect as claimed in claim 1, wherein: the periphery of the excircle of the outer ring (1) is in arc transition with the outer side of the inner hole of the inner ring (2).

4. The automobile hub bearing of claim 1, wherein: the retainer (3) is made of nylon.

5. The automobile hub bearing of claim 1, wherein: the sealing ring (53) is made of butadiene-acrylonitrile rubber.