CN210565793U

CN210565793U - High leakproofness wheel hub bearing unit

Info

Publication number: CN210565793U
Application number: CN201920879059.0U
Authority: CN
Inventors: 李凯; 汪峰
Original assignee: Wanxiang Group Corp; Zhejiang Wanxiang Precision Industry Co Ltd
Current assignee: Wanxiang Group Corp; Zhejiang Wanxiang Precision Industry Co Ltd
Priority date: 2019-06-12
Filing date: 2019-06-12
Publication date: 2020-05-19
Anticipated expiration: 2029-06-12

Abstract

The utility model discloses a high leakproofness wheel hub bearing unit, mainly include holder, external seal circle, O type circle, be fixed with the steel ball on the holder of symmetry setting, set up the outer lane in the upper end of two steel balls, set up left side inner circle and right side inner circle respectively at the lower extreme of two steel balls, set up the inner seal spare between left side inner circle and the outer lane, set up the external seal circle between right side inner circle and the outer lane; and a groove is formed in the end face of the outer side of the outer ring and used for mounting an O-shaped ring. The utility model discloses a carry out redesign to the structure of wheel hub unit, increase external seal circle and O type circle and make the wheel hub unit have higher, more reliable sealing performance, need not to rely on the end cover seal of customer department.

Description

High leakproofness wheel hub bearing unit

Technical Field

The utility model relates to an automobile parts's field, concretely relates to high leakproofness wheel hub bearing unit.

Background

The existing automobile hub unit only has sealing on the inner side, so that the sealing performance of the outer side completely depends on an end cover at a client, and the overall sealing performance of the hub unit is affected if the sealing condition of the end cover at the client is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of prior art existence, and provide a high leakproofness wheel hub bearing unit.

The purpose of the utility model is accomplished through following technical scheme: the high-sealing hub bearing unit mainly comprises a retainer, an outer sealing ring and an O-shaped ring, wherein steel balls are fixed on the symmetrically arranged retainer, outer rings are arranged at the upper ends of the two steel balls, a left inner ring and a right inner ring are respectively arranged at the lower ends of the two steel balls, an inner sealing element is arranged between the left inner ring and the outer ring, and the outer sealing ring is arranged between the right inner ring and the outer ring; and a groove is formed in the end face of the outer side of the outer ring and used for mounting an O-shaped ring.

The utility model has the advantages that: the outer sealing ring is added on the conventional hub unit, and meanwhile, the groove is formed in the end face of the outer ring and the O-shaped ring is added, so that the hub unit has higher and more reliable sealing performance; without relying on end cap sealing at the customer site.

Drawings

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

Fig. 2 is a partially enlarged schematic view of a in fig. 1.

Description of reference numerals: the device comprises an inner sealing element 1, a left inner ring 2, a retainer 3, an outer ring 4, a steel ball 5, an outer sealing ring 6, an O-shaped ring 7 and a right inner ring 8.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings:

example (b): as shown in the attached drawings, the high-sealing hub bearing unit mainly comprises a retainer 3, an outer sealing ring 6 and an O-shaped ring 7, wherein steel balls 5 are fixed on the symmetrically arranged retainer 3, outer rings 4 are arranged at the upper ends of the two steel balls 5, a left inner ring 2 and a right inner ring 8 are respectively arranged at the lower ends of the two steel balls 5, an inner sealing element 1 is arranged between the left inner ring 2 and the outer ring 4 and used for sealing the inner side of the hub unit, and the outer sealing ring 6 is arranged between the right inner ring 8 and the outer ring 4 to play a role in outer side sealing; the outer side end face of the outer ring 4 is provided with a groove for installing an O-shaped ring 7, so that higher and more reliable sealing performance can be obtained when the end cover is installed in an automobile factory.

The utility model discloses a carry out redesign to the structure of wheel hub unit, increase external seal circle and O type circle and make the wheel hub unit have higher, more reliable sealing performance, need not to rely on the end cover seal of customer department.

It should be understood that equivalent substitutions or changes to the technical solution and the inventive concept of the present invention should be considered to fall within the scope of the appended claims for the skilled person.

Claims

1. A high leakproofness wheel hub bearing unit which characterized in that: the steel ball bearing mainly comprises a retainer (3), an outer sealing ring (6) and an O-shaped ring (7), wherein steel balls (5) are fixed on the symmetrically arranged retainer (3), an outer ring (4) is arranged at the upper ends of the two steel balls (5), a left inner ring (2) and a right inner ring (8) are respectively arranged at the lower ends of the two steel balls (5), an inner sealing element (1) is arranged between the left inner ring (2) and the outer ring (4), and the outer sealing ring (6) is arranged between the right inner ring (8) and the outer ring (4); and a groove is formed in the end face of the outer side of the outer ring (4) and used for mounting an O-shaped ring (7).