CN209262087U - Angular contact deep groove ball bearing - Google Patents
Angular contact deep groove ball bearing Download PDFInfo
- Publication number
- CN209262087U CN209262087U CN201822190441.9U CN201822190441U CN209262087U CN 209262087 U CN209262087 U CN 209262087U CN 201822190441 U CN201822190441 U CN 201822190441U CN 209262087 U CN209262087 U CN 209262087U
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- steel ball
- raceway
- groove
- raceway groove
- centre
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Abstract
The utility model relates to a kind of bearings, especially angular contact deep groove ball bearing, including outer ring, inner ring, steel ball and retainer, the inner headed face of the outer ring is equipped with outer raceway groove, the periphery of the inner ring is equipped with interior raceway groove, and the steel ball is mounted in retainer, and steel ball is located in outer raceway groove and interior raceway groove；The interior raceway groove is peach type channel, and the peach type channel is made of two symmetrical half curvature raceways, and the symmetrical centre of the peach type channel is overlapped with the center of inner ring axial direction；The diameter of the half curvature raceway is greater than the diameter of steel ball, and the axle center of half curvature raceway is overlapped with the centre of sphere of steel ball；The angle of the axial centre of the line and inner ring of point and the steel ball centre of sphere that the half curvature raceway is contacted with steel ball is 35 degree.The angular contact deep groove ball bearing is able to bear biggish axial force, the generation for reducing sliding friction, long service life, the time that milling train replacement bearing is effectively reduced and number, reduces the influence to production, reduces maintenance cost.
Description
Technical field
The utility model relates to a kind of bearings, especially angular contact deep groove ball bearing.
Background technique
Deep groove ball bearing inner and outer ring raceway is all in arc-shaped zanjon, and raceway diameter is slightly larger than steel ball radius.Deep groove ball bearing
Lesser end-play can also be born while bearing radial internal clearance.
6080 deep groove ball bearings that mill drive side uses are that a kind of accuracy of manufacture is high, and coefficient of friction is small, and rotary rpm is high
Bearing, which only serves the effect of radial transmission support in mill drive side, it is not possible to bear big axial force, milling equipment
Do not allow theoretically there are axial force, but the axial force of milling equipment is unavoidable, old milling train in actually using
The axial force of equipment is very big, and the deep groove ball bearing of every suit damage can analyze very larger axial force on channel and deposit
?.
Since the axial force on milling train is larger, the service life of deep groove ball bearing is substantially reduced, needs often to shut down more
Deep groove ball bearing is changed, influences normally to produce, while causing maintenance cost higher.
Utility model content
To solve the above problems, the utility model provide one kind be able to bear biggish axial force, long service life, effectively
Time and the number for reducing milling train replacement bearing, reduce the influence to production, reduce the angular contact deep-groove ball of maintenance cost
Bearing, the specific technical proposal is:
The inner headed face of angular contact deep groove ball bearing, including outer ring, inner ring, steel ball and retainer, the outer ring is equipped with outer fissure
The periphery in road, the inner ring is equipped with interior raceway groove, and the steel ball is mounted in retainer, and steel ball is located at outer raceway groove and interior raceway groove
It is interior；The interior raceway groove is peach type channel, and the peach type channel is made of two symmetrical half curvature raceways, the peach type channel
Symmetrical centre is overlapped with the center of inner ring axial direction；The diameter of the half curvature raceway is greater than the diameter of steel ball, and half curvature raceway
Axle center be overlapped with the centre of sphere of steel ball；The point and the line of the steel ball centre of sphere and the axis of inner ring that the half curvature raceway is contacted with steel ball
It is 35 degree to the angle at center.
By using above-mentioned technical proposal, steel ball is point contact with the contact of peach type channel, and is symmetrical two points, by
It is slightly larger than the diameter of steel ball in the diameter of outer raceway groove, contact of the outer raceway groove with steel ball is also point contact, and bearing bears any direction
Axial load when can form a contact angle, therefore steel ball and peach type channel and outer raceway groove form stable three point contact,
Radial support can not only be played, very big axial force can also be born, area is avoided contact with and big sliding friction occurs, effectively improve
The service life of bearing, extends the period of replacement bearing, and little impact on production reduces maintenance cost.
Existing deep groove ball bearing steel ball and contact area of outer raceway groove and interior raceway groove when bearing axial force is big, is easy hair
Raw sliding friction is to cause the failure of bearing.Steel ball and outer raceway groove and interior raceway groove are now changed to three point contact, reduce contact
Area, thus reduce the generation of sliding friction, the raising of the bearing service life of realization.
Angle, which is 35 degree, can permit and be packed into greater number of steel ball within the bearing, realize higher load carrying capacity.
Preferably, the bottom of the peach type channel is equipped with the oil groove of annular.
By using above-mentioned technical proposal, oil groove can store a certain amount of lubricating oil, to be conducive to extend bearing
Service life, while oil groove is also technology groove, facilitates the processing of peach type channel, and two and half curvature raceway intersections is avoided to exist
Interference effect machining accuracy is generated when processing.
Preferably, curvature of the curvature of the outer raceway groove less than half curvature raceway.
By using above-mentioned technical proposal, the end-play of convenient control bearing finished products more, so as to control roll
Axial float in steel rolling.
Preferably, the end-play of the angular contact deep groove ball bearing is the C0 group of four-point contact ball clearance；It is radial
Clearance is the C0 group of deep groove ball bearing clearance.
By using above-mentioned technical proposal, end-play and radial internal clearance, which are all made of conventional C0 group and can reduce processing, to be wanted
It asks, while can effectively control axial float.
Compared with prior art the utility model has the following beneficial effects:
Angular contact deep groove ball bearing provided by the utility model is able to bear biggish axial force, reduces sliding friction
Generation, long service life, the time that milling train replacement bearing is effectively reduced and number, reduce the influence to production, reduce dimension
Protect cost.
Detailed description of the invention
Fig. 1 is the partial profile structure of the utility model；
Fig. 2 is that the partial profile structure after steel ball is removed on the basis of Fig. 1.
Specific embodiment
Now in conjunction with attached drawing, the utility model is described in further detail.
As depicted in figs. 1 and 2, angular contact deep groove ball bearing, including outer ring 1, inner ring 2, steel ball 3 and retainer, outer ring 1
Inner headed face is equipped with outer raceway groove 11, and the periphery of inner ring 2 is equipped with interior raceway groove, and steel ball 3 is mounted in retainer, and steel ball 3 is positioned at outer
In channel 11 and interior raceway groove；Interior raceway groove is peach type channel, and peach type channel is made of two symmetrical half curvature raceways 21, peach type ditch
The symmetrical centre in the road center axial with inner ring 2 is overlapped；The diameter of half curvature raceway 21 is greater than the diameter of steel ball 3, and half curvature
The axle center of raceway 21 is overlapped with the centre of sphere of steel ball 3；The line of point that half curvature raceway 21 is contacted with steel ball 3 and 3 centre of sphere of steel ball with
The angle of the axial centre of inner ring 2 is 35 degree.
Steel ball 3 is point contact with the contact of peach type channel, and is symmetrical two points, since the diameter of outer raceway groove 11 is bigger
In the diameter of steel ball 3, outer raceway groove 11 and the contact of steel ball 3 are also point contact, when bearing bears the axial load of any direction all
A contact angle can be formed, therefore steel ball 3 and peach type channel and outer raceway groove 11 form stable three point contact, can not only play diameter
To support, very big axial force can also be born, area is avoided contact with and big sliding friction occurs, effectively increase the use of bearing
In the service life, the period of replacement bearing is extended, little impact on production reduces maintenance cost.
Existing deep groove ball bearing steel ball and contact area of outer raceway groove and interior raceway groove when bearing axial force is big, is easy hair
Raw sliding friction is to cause the failure of bearing.Steel ball 3 and outer raceway groove 11 and interior raceway groove are now changed to three point contact, reduces and connects
Contacting surface product, thus reduce the generation of sliding friction, the raising of the bearing service life of realization.
Angle, which is 35 degree, can permit and be packed into greater number of steel ball 3 within the bearing, realize higher load carrying capacity.
The bottom of peach type channel is equipped with the oil groove 22 of annular, and oil groove 22 can store a certain amount of lubricating oil, thus
It is conducive to extend the service life of bearing, while oil groove 22 is also technology groove, facilitates the processing of peach type channel, avoids two and half
21 intersection of curvature raceway generates interference effect machining accuracy in processing.
Curvature of the curvature of outer raceway groove 11 less than half curvature raceway 21, the end-play of convenient control bearing finished products more,
So as to control axial float of the roll in steel rolling.
The end-play of angular contact deep groove ball bearing is the C0 group of four-point contact ball clearance；Radial internal clearance is deep-groove ball
The C0 group of bearing clearance.End-play and radial internal clearance, which are all made of conventional C0 group, can reduce processing request, while can have
Effect control axial float.
The internal diameter of angular contact deep groove ball bearing is 400mm, outer diameter 600mm, is highly 90mm.
Claims (4)
1. the inner headed face of angular contact deep groove ball bearing, including outer ring, inner ring, steel ball and retainer, the outer ring is equipped with outer raceway groove,
The periphery of the inner ring is equipped with interior raceway groove, and the steel ball is mounted in retainer, and steel ball is located in outer raceway groove and interior raceway groove；
It is characterized in that,
The interior raceway groove is peach type channel, and the peach type channel is made of two symmetrical half curvature raceways, the peach type channel
Symmetrical centre be overlapped with the center of inner ring axial direction；
The diameter of the half curvature raceway is greater than the diameter of steel ball, and the axle center of half curvature raceway is overlapped with the centre of sphere of steel ball；
The angle of the axial centre of the line and inner ring of point and the steel ball centre of sphere that the half curvature raceway is contacted with steel ball is 35 degree.
2. angular contact deep groove ball bearing according to claim 1, which is characterized in that the bottom of the peach type channel is equipped with ring
The oil groove of shape.
3. angular contact deep groove ball bearing according to claim 1, which is characterized in that it is bent that the curvature of the outer raceway groove is less than half
The curvature of rate raceway.
4. angular contact deep groove ball bearing according to claim 3, which is characterized in that the axis of the angular contact deep groove ball bearing
It is the C0 group of four-point contact ball clearance to clearance；Radial internal clearance is the C0 group of deep groove ball bearing clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822190441.9U CN209262087U (en) | 2018-12-20 | 2018-12-20 | Angular contact deep groove ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822190441.9U CN209262087U (en) | 2018-12-20 | 2018-12-20 | Angular contact deep groove ball bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209262087U true CN209262087U (en) | 2019-08-16 |
Family
ID=67561651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822190441.9U Active CN209262087U (en) | 2018-12-20 | 2018-12-20 | Angular contact deep groove ball bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209262087U (en) |
-
2018
- 2018-12-20 CN CN201822190441.9U patent/CN209262087U/en active Active
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| GR01 | Patent grant |