CN202646399U

CN202646399U - External diameter-knurled sealed bearing

Info

Publication number: CN202646399U
Application number: CN 201220212594
Authority: CN
Inventors: 陆连运; 陆全; 王春南; 朱维国; 赵建文; 杨龙妹
Original assignee: CHANGZHOU WUJIN HUANYU BEARING CO LTD
Current assignee: CHANGZHOU WUJIN HUANYU BEARING CO LTD
Priority date: 2012-05-11
Filing date: 2012-05-11
Publication date: 2013-01-02
Anticipated expiration: 2022-05-11

Abstract

The utility model relates to an external diameter-knurled sealed bearing, which comprises a bearing outer race and a bearing inner race, wherein steel balls are arranged between the bearing outer race and the bearing inner race, the surface of the bearing outer race is provided with knurls, and a sealing element is arranged between the bearing outer race and the bearing inner race as well. After the external diameter-knurled sealed bearing is adopted, muddy water can be effectively prevented from entering the bearing, so that the abrasion of the bearing is reduced, and therefore the service life of the bearing can reach more than 100 hours.

Description

External diameter annular knurl stuffing box bearing

Technical field

The utility model relates to a kind of bearing, especially a kind of external diameter annular knurl stuffing box bearing.

Background technique

Bearing is to work the parts of fixing and reducing the load friction factor in mechanical transmission course, also can say, when other parts produce relative movement each other on axle, is used for reducing the fixing parts of friction factor and retainer shaft central position in the power transmission process.Bearing is a kind of very important component in the contemporary machinery.Its major function is the supported mechanical solid of rotation, in order to the mechanical load friction factor of reduction equipment in transmission process.

Existing bearing all is to be directly installed on the bearing support, and in long operation process, wearing and tearing can appear in bearing, and the variation of relative angle has occured in bearing support as for bearing; And contact lip and the magnitude of interference between the bearing inner race external diameter of the Sealing that carries on the existing bearing are too small, and the elasticity of Sealing is not enough, cause the sealability of Sealing to reduce.

The model utility content

The technical problems to be solved in the utility model is: a kind of external diameter annular knurl stuffing box bearing is provided, and this bearing also has long working life when working in the abominable muddy water of environment.

The technological scheme that its technical problem that solves the utility model adopts is: a kind of external diameter annular knurl stuffing box bearing, comprise bearing outer ring and bearing inner race, be provided with steel ball between described bearing outer ring and the bearing inner race, described bearing outer ring surface is provided with annular knurl, also is provided with Sealing between described bearing outer ring and the bearing inner race.

Further, in order to reduce fabricating cost, annular knurl circle distribution described in the utility model is in the bearing outer ring edge.

Further say, when bearing working in order to guarantee that muddy water does not enter in the bearing, make the bearing rapid failure, Sealing described in the utility model bottom has three contact lips, and the closeness of contact of described three contact lips and bearing inner race successively decreases from inside to outside successively.

The detachable rubber sleeve that is enclosed with on the bearing outer ring described in the utility model, such structure is when bearing is installed on the bearing support, rubber sleeve had both played the effect of aligning damping, can prevent that also muddy water from entering in the bearing simultaneously.

The beneficial effects of the utility model are, have solved the defective that exists in the background technique, can prevent effectively that muddy water from entering in the bearing, reduce the wearing and tearing of bearing, so that the operating life of bearing reached more than 100 hours.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is plan view of the present utility model;

Fig. 2 is the sectional view of Fig. 1;

Among the figure: 1, bearing outer ring; 2, bearing inner race; 3, steel ball; 4, Sealing; 5, annular knurl; 6, contact lip.

Embodiment

With preferred embodiment the utility model is described in further detail by reference to the accompanying drawings now.These accompanying drawings are the schematic representation of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.

A kind of external diameter annular knurl stuffing box bearing as shown in Figure 1, 2 comprises bearing outer ring 1 and bearing inner race 2, is provided with steel ball 3 between bearing outer ring 1 and the bearing inner race 2, and the edge circumference on bearing outer ring 1 surface is provided with annular knurl 5.

Also be provided with Sealing 4 between bearing outer ring 1 and the bearing inner race 2, the closeness of contact that Sealing 4 bottoms have three contact lip 6, three contacts lips 6 and bearing inner race 2 successively decreases from inside to outside successively.

When bearing is installed on the bearing support, place rubber sleeve between bearing and the bearing support, so both played the effect of aligning damping, can prevent that also muddy water from entering in the bearing from the outer ring tank filler sleeve simultaneously.

What describe in the above specification is embodiment of the present utility model, various not illustrating is construed as limiting flesh and blood of the present utility model, the person of an ordinary skill in the technical field after having read specification can to before described embodiment make an amendment or be out of shape, and do not deviate from essence and the scope of model utility.

Claims

1. external diameter annular knurl stuffing box bearing, comprise bearing outer ring (1) and bearing inner race (2), be provided with steel ball (3) between described bearing outer ring (1) and the bearing inner race (2), it is characterized in that: described bearing outer ring (1) surface is provided with annular knurl (5), also is provided with Sealing (4) between described bearing outer ring (1) and the bearing inner race (2).

2. external diameter annular knurl stuffing box bearing as claimed in claim 1, it is characterized in that: described annular knurl (5) circle distribution is in bearing outer ring (1) edge.

3. external diameter annular knurl stuffing box bearing as claimed in claim 1 is characterized in that: described Sealing (4) bottom has three contact lips (6), and described three contact lips (6) successively decrease from inside to outside successively with the closeness of contact of bearing inner race (2).

4. external diameter annular knurl stuffing box bearing as claimed in claim 1 is characterized in that: the upper detachable rubber sleeve that is enclosed with of described bearing outer ring (1).