CN208431271U

CN208431271U - A kind of convexity outer diameter bearing

Info

Publication number: CN208431271U
Application number: CN201821050280.7U
Authority: CN
Inventors: 李楠
Original assignee: JINING JINGYI BEARING CO Ltd
Current assignee: JINING JINGYI BEARING CO Ltd
Priority date: 2018-07-02
Filing date: 2018-07-02
Publication date: 2019-01-25
Anticipated expiration: 2028-07-02

Abstract

The utility model relates to a kind of convexity outer diameter bearings, including outer ring and rolling element, the both ends of the surface of the outer ring extend to the center of outer ring to be respectively formed rib, and the inside of outer ring and rib form raceway, the close ellipse in the outer ring and the longitudinal section of raceway, the rolling element is provided with multiple along raceway, multiple rolling elements are parallel to each other, and rolling element is matched with the raceway, the longitudinal section of the rolling element is closely oval, and the both ends of rolling element offset with rib respectively, the rolling element is made using silicon nitride ceramics material, with fabulous wearability, corrosion resistance and resistant against high temperatures, it is unlikely to deform, extend the service life of bearing.

Description

A kind of convexity outer diameter bearing

Technical field

The utility model belongs to field of bearings, relates in particular to a kind of convexity outer diameter bearing.

Background technique

The rolling element for usually completely filling needle bearing is all that GCr15 material manufacture, its advantage is that hardness with higher with Wear-resisting property is suitable for -20~70 degrees Celsius and cleaning ambient.But when bearing working in high speed, heavy duty, amount of deflection be big, high temperature In the case where, rolling element surface is easy burn deformation, to the serious quality problems of bearing moment locking occur, how can make Rolling element does not deform under the adverse circumstances such as high temperature, is our problems to be solved.

Utility model content

For various deficiencies of the prior art, high and wear-resisting convexity outer diameter bearing can either be resistant to by now providing one kind.

To achieve the above object, the utility model provides the following technical solutions:

A kind of convexity outer diameter bearing, including outer ring and rolling element, the both ends of the surface of the outer ring extend to the center of outer ring To be respectively formed rib, and the inside of outer ring and rib form raceway, the close ellipse in the longitudinal section of the outer ring and raceway, institute It states rolling element and is provided with along raceway multiple, and rolling element is matched with the raceway, and the longitudinal section of the rolling element is closely oval Shape, and the both ends of rolling element offset with rib respectively, the rolling element is made using ceramic material.

Further, the ceramic material is silicon nitride material.

Further, the convex value of the outer ring is 0.001~0.005.

Further, multiple rolling elements are parallel to each other.

Further, the outer ring and raceway are made using GCr15 steel material.

The beneficial effects of the utility model are:

1, the longitudinal section of the outer ring is closely oval, is packed into more rolling elements, load than the bearing of common standard structure Ability improves.

2, rolling element is made using the ceramic material of silicon nitride material, is had fabulous wearability, corrosion resistance and is resistant to By high temperature, it is unlikely to deform.

3, ceramics itself have self-lubricating property, therefore raceway is circular ring shape, do not need that radial oil is arranged on outer ring Hole reduces the abrasion to rolling element, extends the service life of bearing, saves cost.

Detailed description of the invention

Fig. 1 is the vertical section structure schematic diagram of the utility model；

Fig. 2 is the structural schematic diagram of rolling element；

In attached drawing: the outer ring 1-, 2- rolling element, 3- rib.

Specific embodiment

In order to make those skilled in the art more fully understand the technical solution of the utility model, below with reference to the utility model Attached drawing carries out clear, complete description to the technical solution of the utility model, and based on the embodiment in the application, this field is general Logical technical staff other similar embodiments obtained without making creative work, all should belong to the application The range of protection.

The utility model is described in further detail with preferred embodiment with reference to the accompanying drawing.

Embodiment one:

As shown in Figs. 1-2, a kind of convexity outer diameter bearing, including outer ring 1 and rolling element 2, the amount end face of the outer ring 1 to Center extends to be respectively formed rib 3, and the inside of outer ring 1 and rib 3 form raceway, and the rolling element 2 is arranged along raceway It is multiple, and multiple rolling elements 2 are arranged in parallel, the rolling element 2 is matched with the raceway.The longitudinal section of the rolling element 2 is close Ellipse, and the both ends of the rolling element 2 offset with rib 3 respectively.The close ellipse in the outer ring 1 and the longitudinal section of raceway, And the convex value of the nearly elliptical head is 0.001~0.005.The rolling element 2 is made using silicon nitride ceramic material, tool It has good wearability, corrosion resistance and self-lubrication.In the present embodiment, the outer ring 1 and raceway are all made of GCr15 steel It is made, there is stronger hardness and wear-resisting property.

When installing convexity outer diameter bearing, first by rolling element 2 in raceway marshalling, and guarantee 2 energy of rolling element The installation that convexity outer diameter bearing can be completed enough is freely rotated, the rolling element 2 is the ceramic material of silicon nitride material, is had very Good self-lubrication does not need lubricant, therefore the raceway is closed annulus and does not need the radial oilhole of setting, is reduced Abrasion to rolling element 2, extends the service life of outer bearing.

The utility model is described in detail above, it is described above, only the preferred embodiment of the utility model and , when the utility model practical range cannot be limited, i.e., all according to the made equivalent changes and modifications of the application range, it should still belong to this In utility model covering scope.

Claims

1. a kind of convexity outer diameter bearing, including outer ring and rolling element, it is characterised in that: the both ends of the surface of the outer ring are to outer ring Center extends to be respectively formed rib, and the inside of outer ring and rib form raceway, and the longitudinal section of the outer ring and raceway is close Ellipse, the rolling element are provided with multiple along raceway, and rolling element is matched with the raceway, and the vertical of the rolling element cuts Face is closely oval, and the both ends of rolling element offset with rib respectively, and the rolling element is made using ceramic material.

2. a kind of convexity outer diameter bearing according to claim 1, it is characterised in that: the ceramic material is silicon nitride material Matter.

3. a kind of convexity outer diameter bearing according to claim 1, it is characterised in that: the convex value of the outer ring is 0.001 ~0.005.

4. a kind of convexity outer diameter bearing according to claim 1, it is characterised in that: multiple rolling elements are parallel to each other.

5. a kind of convexity outer diameter bearing according to claim 1 to 4, it is characterised in that: the outer ring and raceway use GCr15 steel material is made.