CN204061559U - Back to back angle contact ball bearing - Google Patents
Back to back angle contact ball bearing Download PDFInfo
- Publication number
- CN204061559U CN204061559U CN201420496632.7U CN201420496632U CN204061559U CN 204061559 U CN204061559 U CN 204061559U CN 201420496632 U CN201420496632 U CN 201420496632U CN 204061559 U CN204061559 U CN 204061559U
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- CN
- China
- Prior art keywords
- rolling
- retainer
- rolling element
- pocket hole
- inner ring
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Rolling Contact Bearings (AREA)
Abstract
The utility model provides a kind of back to back angle contact ball bearing, the axial both ends of the surface of this back to back angle contact ball bearing has direct contact seal part, the above-mentioned inner ring relative with the free end of direct contact seal part has groove, the free end of above-mentioned direct contact seal part contacts relative to the bearing axial vane surface in above-mentioned groove, therefore, it is possible to prevent foreign matter from invading externally to Bearing inner.
Description
Technical field
The utility model relates to back to back angle contact ball bearing.
Background technique
In recent years, in the bearing that the rotation axle head for the ball screw in lathe or general industry machinery is supported, worry because the cutting fluid in the axial load that repeatedly inputs bearing and lathe or general industry machinery and cutting are considered to be worth doing to the intrusion in bearing, and can have an impact to the life-span of bearing and endurance.
Model utility content
In order to solve above-mentioned problem, the utility model provides a kind of back to back angle contact ball bearing, has: inner ring, and be arranged with two row rolling rings, described rolling ring has rolling surface on outer circumferential face; Outer ring, inner peripheral surface has two row rolling surfaces; Multiple rolling element, rolls between described inner ring and the rolling surface each other of described outer ring; With circular retainer, it has pocket hole, multiple described rolling element collecting also equally spaced keeps by described pocket hole mutually, the wrapping angle that the point of contact of described rolling element and described outer ring and described inner ring links is located at more than 40 degree and less than 65 degree, the feature of described back to back angle contact ball bearing is
Described retainer is made up of large footpath annulus, path annulus and the post portion that described large footpath annulus and described path annulus linked, relation between the external diameter side pocket hole aperture D1 of retainer and the internal diameter side pocket hole aperture D2 of retainer and rolling element diameter D0 meets D1 < D0, the relation of D2<D0
And, the axial both ends of the surface of described back to back angle contact ball bearing has direct contact seal part, the described inner ring relative with the free end of described direct contact seal part has groove, and the free end of described direct contact seal part contacts relative to the bearing axial vane surface in described groove.In back to back angle contact ball bearing of the present utility model, even if also can realize the long lifetime of bearing to bearing repeated action axial load, can prevent the cutting fluid in lathe or general industry machinery and cutting bits from invading in bearing, and the endurance of bearing can be improved.
And the second model utility provides a kind of back to back angle contact ball bearing, has: inner ring, be arranged with two row rolling rings, described rolling ring has rolling surface on outer circumferential face; Outer ring, inner peripheral surface has two row rolling surfaces; Multiple rolling element, rolls between described inner ring and the rolling surface each other of described outer ring; With circular retainer, it has pocket hole, multiple described rolling element collecting also equally spaced keeps by described pocket hole mutually, the wrapping angle that the point of contact of described rolling element and described outer ring and described inner ring links is located at more than 40 degree and less than 65 degree, the feature of described back to back angle contact ball bearing is
Described retainer is made up of large footpath annulus, path annulus and the post portion that described large footpath annulus and described path annulus linked, relation between the external diameter side pocket hole aperture D1 of retainer and the internal diameter side pocket hole aperture D2 of retainer and rolling element diameter D0 meets D1 < D0, the relation of D2<D0
And, the axial both ends of the surface of described back to back angle contact ball bearing has non-contact seal part, the described inner ring relative with the free end of described non-contact seal part has groove, by the free end of described groove and described non-contact seals part, there is the labyrinth sealing formed by the gap specified.In back to back angle contact ball bearing of the present utility model, even if also can realize the long lifetime of bearing to bearing repeated action axial load, can prevent the cutting fluid in lathe or general industry machinery and cutting bits from invading in bearing, and the endurance of bearing can be improved.
And the 3rd model utility provides a kind of back to back angle contact ball bearing, it is characterized in that having: inner ring, be arranged with two row rolling rings, described rolling ring has rolling surface on outer circumferential face; Outer ring, inner peripheral surface has two row rolling surfaces, and has the through hole be communicated with from outer circumferential face to inner peripheral surface and/or the through hole be communicated with from side, outer ring to inner peripheral surface, and is axially arranged with penetration hole along bearing; Multiple rolling element, rolls between described inner ring and the rolling surface each other of described outer ring; With circular retainer, it has pocket hole, and described pocket hole is by multiple described rolling element collecting and mutually equally spaced keep, and the wrapping angle that the point of contact of described rolling element and described outer ring and described inner ring links is located at more than 40 degree and less than 65 degree,
Described retainer is made up of large footpath annulus, path annulus and the post portion that described large footpath annulus and described path annulus linked, relation between the external diameter side pocket hole aperture D1 of retainer and the internal diameter side pocket hole aperture D2 of retainer and rolling element diameter D0 meets D1 < D0, the relation of D2<D0
And, the axial both ends of the surface of described back to back angle contact ball bearing has direct contact seal part, the described inner ring relative with the free end of described direct contact seal part has groove, and the free end of described direct contact seal part contacts relative to the bearing axial vane surface in described groove.In back to back angle contact ball bearing of the present utility model, even if also can realize the long lifetime of bearing to bearing repeated action axial load, can prevent the cutting fluid in lathe or general industry machinery and cutting bits from invading in bearing, and the endurance of bearing can be improved.
And the 4th model utility provides a kind of back to back angle contact ball bearing, it is characterized in that having: inner ring, be arranged with two row rolling rings, described rolling ring has rolling surface on outer circumferential face; Outer ring, inner peripheral surface has two row rolling surfaces, and has the through hole be communicated with from outer circumferential face to inner peripheral surface and/or the through hole be communicated with from side, outer ring to inner peripheral surface, and is axially arranged with penetration hole along bearing; Multiple rolling element, rolls between described inner ring and the rolling surface each other of described outer ring; With circular retainer, it has pocket hole, and described pocket hole is by multiple described rolling element collecting and mutually equally spaced keep, and the wrapping angle that the point of contact of described rolling element and described outer ring and described inner ring links is located at more than 40 degree and less than 65 degree,
Described retainer is made up of large footpath annulus, path annulus and the post portion that described large footpath annulus and described path annulus linked, relation between the external diameter side pocket hole aperture D1 of retainer and the internal diameter side pocket hole aperture D2 of retainer and rolling element diameter D0 meets D1 < D0, the relation of D2<D0
And, the axial both ends of the surface of described back to back angle contact ball bearing has non-contact seal part, the described inner ring relative with the free end of described non-contact seal part has groove, by the free end of described groove and described non-contact seals part, there is the labyrinth sealing formed by the gap specified.In back to back angle contact ball bearing of the present utility model, even if also can realize the long lifetime of bearing to bearing repeated action axial load, can prevent the cutting fluid in lathe or general industry machinery and cutting bits from invading in bearing, and the endurance of bearing can be improved.
Accompanying drawing explanation
Fig. 1 is the stereogram of the back to back angle contact ball bearing representing the first mode of execution of the present utility model.
Fig. 2 is the stereogram of the back to back angle contact ball bearing representing the second mode of execution of the present utility model.
Fig. 3 is the stereogram of the back to back angle contact ball bearing representing the 3rd mode of execution of the present utility model.
Fig. 4 is the stereogram of the back to back angle contact ball bearing representing the 4th mode of execution of the present utility model.
Fig. 5 is the pocket hole amplification view of mode of execution of the present utility model.
Embodiment
The back to back angle contact ball bearing 1 of this first mode of execution has: inner ring 2, and be arranged with two row rolling ring 2a, this rolling ring 2a has rolling surface on outer circumferential face; Outer ring 3, inner peripheral surface has two row rolling surfaces; Multiple rolling element 4, rolls between above-mentioned inner ring 2 and the rolling surface each other of above-mentioned outer ring 3; With circular retainer 5, it has pocket hole 5c, and multiple above-mentioned rolling element 4 is accommodated and mutually equally spaced kept by above-mentioned pocket hole 5c.In addition, in outer ring in the phase place different from through hole 3a, 3b at bearing rotary center, be provided with along bearing shaft to penetration hole 3d, and can be jointly fastening by multiple bearing, and make the fixing simplicity of bearing.And, the wrapping angle θ that the point of contact P that rolling element 4 contacts with outer ring 3 and inner ring 2 links is set to more than 40 degree and less than 65 degree.Retainer 5 has large footpath annulus 5a and path annulus 5b, consists of the pocket hole 5c of collecting rolling element 4 the post portion 5d linked by above-mentioned large footpath annulus 5a and above-mentioned path annulus 5b.The pocket hole face S of above-mentioned pocket hole 5c is formed as spherical shape, this spherical shape makes the relation between the external diameter side pocket hole aperture D1 of retainer 5 and the internal diameter side pocket hole aperture D2 of retainer 5 and rolling element diameter D0 meet the relation of D1 < D0, D2<D0, thus the pocket hole face S of above-mentioned pocket hole 5c keeps in the mode that can not make rolling element 4 and deviate from pocket hole.And, the axial both ends of the surface of above-mentioned back to back angle contact ball bearing has direct contact seal part 6, the above-mentioned inner ring 2 relative with the free end 6a of direct contact seal part 6 has groove 2b, and the free end 6a of above-mentioned direct contact seal part 6 contacts relative to the bearing axial vane surface in groove.
In addition, this second mode of execution have employed the formation of the bearing same with the first mode of execution, but replaces the direct contact seal part of the first mode of execution and have the Sealing 16 of non-contact type.The inner ring 2 that the free end 16a of the Sealing 16 with non-contact type is relative has groove 2b, forms labyrinth sealing by the free end 16a of groove 2b and non-contact seals part 16 by the gap specified.By adopting these mode of executions, even if also can realize the long lifetime of bearing to bearing repeated action axial load, can prevent the cutting fluid in lathe or general industry machinery and cutting bits from invading in bearing, and the endurance of bearing can be improved.
In addition, in the third embodiment, the through hole 3a be communicated with from the outer circumferential face of outer ring 3 to inner peripheral surface is provided with.And be connected with the through hole 3b be communicated with from side, outer ring (these two through holes 3a, 3b also only can have any one party and be communicated with outer ring inner peripheral surface in the midway of above-mentioned through hole 3a.)。Other bearing forms same with the first mode of execution.By present embodiment, from above-mentioned through hole by supplying the oiling agent of necessary amount in bearing, thus, the further raising of bearing life can be contributed to according to the service condition of bearing.
In addition, in the 4th mode of execution, be provided with the through hole 3a be communicated with from the outer circumferential face of outer ring 3 to inner peripheral surface.And be connected with the through hole 3b be communicated with from side, outer ring (these two through holes 3a, 3b also only can have any one party and be communicated with outer ring inner peripheral surface in the midway of above-mentioned through hole 3a.)。Other bearing forms same with the second mode of execution.By present embodiment, from above-mentioned through hole by supplying the oiling agent of necessary amount in bearing, thus, the further raising of bearing life can be contributed to according to the service condition of bearing.
Claims (4)
1. a back to back angle contact ball bearing, has:
Inner ring, be arranged with two row rolling rings, described rolling ring has rolling surface on outer circumferential face;
Outer ring, inner peripheral surface has two row rolling surfaces, and along bearing shaft to having penetration hole;
Multiple rolling element, rolls between described inner ring and the rolling surface each other of described outer ring; With
Circular retainer, it has pocket hole, and multiple described rolling element collecting also equally spaced keeps by described pocket hole mutually,
The wrapping angle that the point of contact of described rolling element and described outer ring and described inner ring links is located at more than 40 degree and less than 65 degree, and the feature of described back to back angle contact ball bearing is,
Described retainer is made up of large footpath annulus, path annulus and the post portion that described large footpath annulus and described path annulus linked,
Relation between the external diameter side pocket hole aperture D1 of retainer and the internal diameter side pocket hole aperture D2 of retainer and rolling element diameter D0 meets D1 < D0, the relation of D2<D0,
Further, the axial both ends of the surface of described back to back angle contact ball bearing have direct contact seal part,
The described inner ring relative with the free end of described direct contact seal part has groove, and the free end of described direct contact seal part contacts relative to the bearing axial vane surface in described groove.
2. a back to back angle contact ball bearing, has:
Inner ring, be arranged with two row rolling rings, described rolling ring has rolling surface on outer circumferential face;
Outer ring, inner peripheral surface has two row rolling surfaces, and along bearing shaft to having penetration hole;
Multiple rolling element, rolls between described inner ring and the rolling surface each other of described outer ring; With
Circular retainer, it has pocket hole, and multiple described rolling element collecting also equally spaced keeps by described pocket hole mutually,
The wrapping angle that the point of contact of described rolling element and described outer ring and described inner ring links is located at more than 40 degree and less than 65 degree, and the feature of described back to back angle contact ball bearing is,
Described retainer is made up of large footpath annulus, path annulus and the post portion that described large footpath annulus and described path annulus linked,
Relation between the external diameter side pocket hole aperture D1 of retainer and the internal diameter side pocket hole aperture D2 of retainer and rolling element diameter D0 meets D1 < D0, the relation of D2<D0,
Further, the axial both ends of the surface of described back to back angle contact ball bearing have non-contact seal part,
The described inner ring relative with the free end of described non-contact seal part has groove,
By the free end of described groove and described non-contact seals part, there is the labyrinth sealing formed by the gap specified.
3. a back to back angle contact ball bearing, is characterized in that, has:
Inner ring, be arranged with two row rolling rings, described rolling ring has rolling surface on outer circumferential face;
Outer ring, inner peripheral surface has two row rolling surfaces, and has the through hole be communicated with from outer circumferential face to inner peripheral surface and/or the through hole be communicated with from side, outer ring to inner peripheral surface, and is axially arranged with penetration hole along bearing;
Multiple rolling element, rolls between described inner ring and the rolling surface each other of described outer ring; With
Circular retainer, it has pocket hole, and multiple described rolling element collecting also equally spaced keeps by described pocket hole mutually,
The wrapping angle that the point of contact of described rolling element and described outer ring and described inner ring links is located at more than 40 degree and less than 65 degree,
Described retainer is made up of large footpath annulus, path annulus and the post portion that described large footpath annulus and described path annulus linked,
Relation between the external diameter side pocket hole aperture D1 of retainer and the internal diameter side pocket hole aperture D2 of retainer and rolling element diameter D0 meets D1 < D0, the relation of D2<D0,
Further, the axial both ends of the surface of described back to back angle contact ball bearing have direct contact seal part,
The described inner ring relative with the free end of described direct contact seal part has groove, and the free end of described direct contact seal part contacts relative to the bearing axial vane surface in described groove.
4. a back to back angle contact ball bearing, is characterized in that, has:
Inner ring, be arranged with two row rolling rings, described rolling ring has rolling surface on outer circumferential face;
Outer ring, inner peripheral surface has two row rolling surfaces, and has the through hole be communicated with from outer circumferential face to inner peripheral surface and/or the through hole be communicated with from side, outer ring to inner peripheral surface, and is axially arranged with penetration hole along bearing;
Multiple rolling element, rolls between described inner ring and the rolling surface each other of described outer ring; With
Circular retainer, it has pocket hole, and multiple described rolling element collecting also equally spaced keeps by described pocket hole mutually,
The wrapping angle that the point of contact of described rolling element and described outer ring and described inner ring links is located at more than 40 degree and less than 65 degree,
Described retainer is made up of large footpath annulus, path annulus and the post portion that described large footpath annulus and described path annulus linked,
Relation between the external diameter side pocket hole aperture D1 of retainer and the internal diameter side pocket hole aperture D2 of retainer and rolling element diameter D0 meets D1 < D0, the relation of D2<D0,
Further, the axial both ends of the surface of described back to back angle contact ball bearing have non-contact seal part,
The described inner ring relative with the free end of described non-contact seal part has groove,
By the free end of described groove and described non-contact seals part, there is the labyrinth sealing formed by the gap specified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420496632.7U CN204061559U (en) | 2014-08-29 | 2014-08-29 | Back to back angle contact ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420496632.7U CN204061559U (en) | 2014-08-29 | 2014-08-29 | Back to back angle contact ball bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204061559U true CN204061559U (en) | 2014-12-31 |
Family
ID=52203082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420496632.7U Expired - Fee Related CN204061559U (en) | 2014-08-29 | 2014-08-29 | Back to back angle contact ball bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204061559U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041855A (en) * | 2015-07-31 | 2015-11-11 | 洛阳轴研科技股份有限公司 | Back-to-back assembly type biserial angular contact ball bearing and assembling method thereof |
-
2014
- 2014-08-29 CN CN201420496632.7U patent/CN204061559U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041855A (en) * | 2015-07-31 | 2015-11-11 | 洛阳轴研科技股份有限公司 | Back-to-back assembly type biserial angular contact ball bearing and assembling method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20200829 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |