CN202732715U

CN202732715U - Sealing ring bearing

Info

Publication number: CN202732715U
Application number: CN 201220391532
Authority: CN
Inventors: 林新强
Original assignee: FUJIAN FU'AN XINQIANG BEARING Co Ltd
Current assignee: FUJIAN FU'AN XINQIANG BEARING Co Ltd
Priority date: 2012-08-08
Filing date: 2012-08-08
Publication date: 2013-02-13
Anticipated expiration: 2022-08-08

Abstract

A sealing ring bearing comprises an inner ring, an outer ring, a rolling body and a holder. The rolling body is placed between ball tracks of the inner ring and the outer ring, the holder evenly separates the rolling body along a peripheral direction inside the ball tracks, the rolling body is arranged on the holder in s rotatable mode, and a sealing ring is arranged between the outer ring and the inner ring. According to the structure of the sealing ring bearing, the sealing ring, especially the tetrafluoro-ethylene sealing ring is used to replace a metal ram-type dustproof cap, and the effect on the roundness, the ovality and the verticality of an excircle of a rolling bearing is avoided when the dustproof cap is assembled. Sealing effect is good, and the service life of the sealing ring bearing is greatly prolonged.

Description

Sealed bearing

Technical field

The utility model relates to the mechanical fitting field, especially a kind of bearing, and concrete is a kind of sealed bearing.

Background technique

Bearing is one of parts most widely used in the mechanical engineering, especially rolling bearing, and he relies on the rolling between the primary component to contact the support rotating part, and rolling bearing has that surface friction drag is little, and power consumpiton is few, starts the advantages such as easy.

Rolling bearing generally is comprised of four parts such as inner ring, outer ring, rolling element and retainers, inner ring is used for and the axle journal assembling, the outer ring is used for and the bearing saddle bore assembling, normally inner ring is along with axle journal turns round, the outer ring is fixed, but also available outer ring revolution and inner ring is motionless, perhaps Internal and external cycle rotating occasion simultaneously.

Traditional rolling bearing does not have Seal Design, tradition is if sealing generally is to adopt metal stamping formula dust cover to seal, when adopting metal stamping formula dust cover to seal, can affect circularity, ovality and the perpendicularity of housing washer, then cause bearing degradation or scrap, especially larger for the thin-wall bearing impact; And metal dust-proof cover contacts with seal groove during for the limit bearing operation, and seal clearance is selected larger, thereby causes the sealing and dustproof weak effect.

The model utility content

It is a kind of simple in structure, easy for installation that the purpose of this utility model is to provide, the sealed bearing that seal clearance is little.

For solving the problems of the technologies described above, the utility model provides a kind of sealed bearing, comprise inner ring, outer ring, rolling element and retainer, described rolling element is between the raceway of inner ring and outer ring, retainer is along the circumferential direction evenly separated rolling element in raceway, described rolling element is rotating to be arranged on the retainer, installs seal ring between described outer ring and the inner ring.

For strengthening the sealing effect of bearing, the utility model improves to be had, and is provided with draw-in groove on described outer ring and the inner ring, and the two ends of described seal ring are provided with the flanging of adaptive draw-in groove, and described flanging snaps in described draw-in groove.

The utility model improves to be had, and the radial seal gap between described seal ring and the draw-in groove is 0.001mm.

For further strengthening the sealing effect of bearing, the utility model improves to be had, and described seal ring is divided into outer seal ring and internal layer seal ring.

Concrete, the material of described seal ring is teflon.

In order to make bearing dismantling convenient, the utility model improves to be had, and is provided with the section of unloading of pulling out on the described inner ring.

The beneficial effects of the utility model are: novel bearing structure, adopt the especially seal ring replacement metal stamping formula dust cover of teflon of seal ring, when having avoided the assembling dust cover on the impact of roundness of external circle, ovality and the perpendicularity of rolling bearing, good sealing effect has promoted working life of bearing greatly.

Description of drawings

Accompanying drawing 1 is the structural representation of sealed bearing of the present utility model.

Label declaration: 1-inner ring; The 2-outer ring; The 3-rolling element; The 4-seal ring; The 41-flanging.

Embodiment

By describing technology contents of the present utility model, structure characteristics in detail, realized purpose and effect, below in conjunction with mode of execution and cooperate that accompanying drawing is detailed to give explanation.

See also Fig. 1, a kind of sealed bearing that the utility model provides shown in the accompanying drawing, comprise inner ring 1, outer ring 2, rolling element 3 and retainer, described rolling element 3 is between the raceway of inner ring 1 and outer ring 2, retainer is along the circumferential direction evenly separated rolling element 3 in raceway, described rolling element 3 rotating being arranged on the retainer, installing seal ring 4 between described outer ring 2 and the inner ring 1.

Novel bearing structure adopts seal ring 4 to replace metal stamping formula dust covers, and on the impact of roundness of external circle, ovality and the perpendicularity of rolling bearing, good sealing effect has promoted working life of bearing greatly when having avoided the assembling dust cover.

In the present embodiment, be provided with draw-in groove on described outer ring 2 and the inner ring 1, the two ends of described seal ring 4 are provided with the flanging 41 of adaptive draw-in groove, and described flanging 41 snaps in described draw-in groove, and the outside of seal ring 4 and inboard all are provided with flanging 41, can increase the intensity of whole seal ring 4, certainly also increased the area of contact of seal ring 4 with bearing, so that bearing can firmly be installed in difficult drop-off on the axle, certainly, in the present embodiment, do not limit the concrete means of fixation of seal ring 4.

In the present embodiment, for further guaranteeing the fixed effect of whole seal ring 4, the radial seal gap between described seal ring 4 and the draw-in groove is 0.001mm.

In the present embodiment, described seal ring 4 is divided into outer seal ring 4 and internal layer seal ring 4, by the setting of two-layer seal ring 4, has formed double-deck sealing configuration, has strengthened greatly sealing effect.

In the present embodiment, the material of described seal ring 4 is teflon, certainly, do not limit the concrete material of seal ring 4 in the present embodiment, in other embodiments, also can adopt the seal ring 4 of unlike material, preferably can guarantee to annotate between the two-layer seal ring 4 suitable grease, be made into an interlayer, can enter bearing inside and cause bearing failure by the extraneous powder of more effective prevention.

In the present embodiment, be provided with the section of unloading 11 of pulling out on the described inner ring 1, can carry out fast the dismounting of bearing by instrument and the cooperation of pulling out the section of unloading 11, can not damage bearing or other parts in unloading process simultaneously, it is simple in structure, lightweight.

The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.

Claims

1. sealed bearing, comprise inner ring, outer ring, rolling element and retainer, it is characterized in that, described rolling element is between the raceway of inner ring and outer ring, retainer is along the circumferential direction evenly separated rolling element in raceway, described rolling element is rotating to be arranged on the retainer, installs seal ring between described outer ring and the inner ring.

2. sealed bearing according to claim 1 is characterized in that, is provided with draw-in groove on described outer ring and the inner ring, and the two ends of described seal ring are provided with the flanging of adaptive draw-in groove, and described flanging snaps in described draw-in groove.

3. sealed bearing according to claim 2, its tagged word is that the radial seal gap between described seal ring and the draw-in groove is 0.001mm.

4. sealed bearing according to claim 1 is characterized in that, described seal ring is divided into outer seal ring and internal layer seal ring.

5. sealed bearing according to claim 1 is characterized in that, the material of described seal ring is teflon.

6. sealed bearing according to claim 1 is characterized in that, is provided with the section of unloading of pulling out on the described inner ring.