CN203441982U

CN203441982U - Seal ring for needle bearing

Info

Publication number: CN203441982U
Application number: CN201320457282.9U
Authority: CN
Inventors: 丁国华; 彭召辉; 杨二珍; 秦川
Original assignee: Wuhu Generator Automotive Electrical Systems Co Ltd
Current assignee: Wuhu Generator Automotive Electrical Systems Co Ltd
Priority date: 2013-07-30
Filing date: 2013-07-30
Publication date: 2014-02-19
Anticipated expiration: 2023-07-30

Abstract

The utility model discloses a seal ring for a needle bearing. The seal ring comprises a seal ring body (1), wherein the seal ring body (1) comprises an inner ring (2) and an outer ring (3) which are integrally connected; an opening (4) is formed in each side of a connecting part between the inner ring (2) and the outer ring (3); the axial size of the opening (4) is 1/4 of the width of a rubber ring body (1). According to the seal ring with the structure, through the openings in the two sides of the connecting part between the inner ring and the outer ring, the overflow of lubricating grease is effectively relieved, foreign matters are prevented from entering the bearing, the wear problem of the bearing caused by reasons such as abrasion, corrosion and seal damage is avoided, the service life of the bearing is prolonged, and the problem of abnormal motor sound caused by poor sealing is avoided.

Description

A kind of seal ring for needle bearing

Technical field

The utility model relates to a kind of seal ring for needle bearing.

Background technique

Needle bearing is in mechanical transmission course, rise fixing and reduce the parts of load friction factor, can in high radial load, bear certain axial load bearing very, is a kind of very important component in contemporary machinery.Needle bearing is equipped with thin and long roller, so radial structure is compact, and when its internal diameter size is identical with other types bearing with load-carrying ability, external diameter is minimum, is specially adapted to the radially restricted supporting structure of installation dimension.Needle bearing is different according to use occasion, can select bearing or needle roller and retainer assembly without inner ring, the journal surface now matching with bearing and shell aperture surface are directly as the inside and outside rolling surface of bearing, for guaranteeing load-carrying ability and runnability and having lasso bearing identical, the hardness of axle or shell aperture raceway face, machining accuracy and surface quality should be similar with bearing ring.The lubricated object of bearing is to reduce bearing internal friction and wearing and tearing, prevents from burning gluing, and extends the fatigue life of bearing; Discharge is by the heat that rubs and occur, or the heat being transmitted by outside, cooling; Also prevent that foreign matter from invading bearing inner, or prevent from getting rusty, the effect of corrosion.

In actual using process, have 1/3rd needle bearing to damage to lead because of in tired damage, a needle bearing of/3rd is because insufficient lubrication, and insufficient lubrication is except the quality problems of lubricating grease itself, may be greatly because the bad lubricating grease of sealing overflows, to cause the intrusion of lubricating grease quantity not sufficient or foreign, other 1st/3rd, because pollutant enters bearing or equipment is mishandling.And the actual life that in fact bearing can reach before damaging " operating life " be by wearing and tearing, to damage be not by due to fatigue conventionally, but caused by reasons such as wearing and tearing, burn into bad seals, and seal and badly also can cause motor abnormal sound, therefore, the sealing problem of bearing is very crucial.

Model utility content

Technical problem to be solved in the utility model is to provide a kind of seal ring for needle bearing for problems of the prior art, its objective is and avoid because the reasons such as wearing and tearing, burn into bad seals cause the wear problem of needle bearing, and avoided due to the bad motor abnormal sound problem causing of sealing.

To be this kind comprise seal ring body for the seal ring of needle bearing to the technical solution of the utility model, described seal ring body comprises inner ring and the outer ring connecting as one, between described inner ring and outer ring, and the both sides that are positioned at connection part are respectively equipped with at least one circle opening.

The axial dimension of described opening is less than or equal to 1/3rd of rubber ring body width.

The axial dimension of described opening is 1/4th of rubber ring body width.

The both sides of described connection part are respectively equipped with a circle opening.

This kind with said structure for the seal ring of needle bearing by the opening arranging in inner ring and both sides, link position, outer ring, effectively slow down overflowing of lubricating grease, prevented entering of foreign matter, avoid causing due to reasons such as wearing and tearing, burn into bad seals the wear problem of needle bearing, the working life of bearing, and avoided due to sealing the bad motor abnormal sound problem causing.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the utility model is described in further detail:

Fig. 1 is structural representation of the present utility model.

Fig. 2 is sectional structure schematic diagram of the present utility model.

In Fig. 1-2,1: seal ring body; 2: inner ring; 3: outer ring; 4: opening.

Embodiment

Fig. 1 is that the utility model is for the structural representation of the seal ring of needle bearing, Fig. 2 is the sectional structure schematic diagram of structure shown in Fig. 1, from structure shown in Fig. 1 and Fig. 2 in conjunction with, this kind comprises seal ring body 1 for the seal ring of needle bearing, seal ring body 1 comprises inner ring 2 and the outer ring 3 connecting as one, between described inner ring 2 and outer ring 3, and the both sides that are positioned at connection part are respectively equipped with a circle opening 4, and the axial dimension of opening 4 is 1/4th of rubber ring body 1 width.

Claims

1. the seal ring for needle bearing, it is characterized in that: described seal ring comprises seal ring body (1), described seal ring body (1) comprises inner ring (2) and outer ring (3) that connect as one, between described inner ring (2) and outer ring (3), and the both sides that are positioned at connection part are respectively equipped with at least one circle opening (4).

2. a kind of seal ring for needle bearing according to claim 1, is characterized in that: the axial dimension of described opening (4) is less than or equal to 1/3rd of rubber ring body (1) width.

3. a kind of seal ring for needle bearing according to claim 2, is characterized in that: the axial dimension of described opening (4) is 1/4th of rubber ring body (1) width.

4. according to a kind of seal ring for needle bearing described in claim 1-3 any one claim, it is characterized in that: the both sides of described connection part are respectively equipped with a circle opening (4).