CN204061556U - Back to back angle contact ball bearing - Google Patents
Back to back angle contact ball bearing Download PDFInfo
- Publication number
- CN204061556U CN204061556U CN201420496216.7U CN201420496216U CN204061556U CN 204061556 U CN204061556 U CN 204061556U CN 201420496216 U CN201420496216 U CN 201420496216U CN 204061556 U CN204061556 U CN 204061556U
- Authority
- CN
- China
- Prior art keywords
- rolling
- outer ring
- retainer
- ball bearing
- contact ball
- Prior art date
- 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, its outer ring has along bearing shaft to penetration hole, improve the assembling operation for being configured with same heart shaped by back to back angle contact ball bearing.
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, cause because of the axial load etc. of repeated action the load of bearing requirements comparatively large, therefore, need to use multiple bearing for multiple row.But, due to multiple Bearing configuration is more miscellaneous at same positioning operation in the heart, so require to improve assembling operation.
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, and have groove on outer circumferential face, 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 that described rolling element contacts with 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 outer ring 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, described retainer is by large footpath annulus, path annulus, and the post portion that described large footpath annulus and described path annulus linked and forming, 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, in above-mentioned back to back angle contact ball bearing, described outer ring is axially arranged with penetration hole along bearing.By back to back angle contact ball bearing of the present utility model, the assembling operation in the same heart shaped configuration 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, and have groove on outer circumferential face, 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 that described rolling element contacts with 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 by large footpath annulus, path annulus, and the post portion that described large footpath annulus and described path annulus linked and forming, 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, in above-mentioned back to back angle contact ball bearing, described outer ring is axially arranged with penetration hole along bearing.By back to back angle contact ball bearing of the present utility model, the assembling operation in the same heart shaped configuration 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 pocket hole amplification view representing 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, and on outer circumferential face, has groove 3c; 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.The fixture engaging that groove 3c extracts out for not shown 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 do not have Sealing and are opening.In addition, according to the needs of the oiling agent supply of bearing, and (these two through holes 3a, 3b also only can have any one party to be provided with the second through hole 3b that the first through hole 3a of the oiling agent supply be communicated with from the outer circumferential face of outer ring to inner peripheral surface and the oiling agent that is communicated with to the midway of above-mentioned through hole 3a from side, outer ring supply.)。In addition, in outer ring in the phase place different from through hole 3a, 3b of bearing rotary central rotation, be provided with towards bearing shaft to penetration hole 3d, can be jointly fastening with same heart shaped by multiple bearing by present embodiment, and make the fixing simplicity of bearing and improve assembling operation.In addition, this second mode of execution have employed the formation same with the first mode of execution, in order to be applicable to the pattern not requiring oiling agent to supply, and does not have the first any through hole 3a and the second through hole 3b.By present embodiment, also in the same manner as the first mode of execution, can be jointly fastening with same heart shaped by multiple bearing, and make the fixing simplicity of bearing and improve assembling operation.
Claims (2)
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 have groove on outer circumferential face;
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 that described rolling element contacts with 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 outer ring 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,
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 the relation of D1 < D0, D2<D0,
In above-mentioned back to back angle contact ball bearing, described outer ring is axially arranged with penetration hole along bearing.
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 have groove on outer circumferential face;
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 that described rolling element contacts with 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 the relation of D1 < D0, D2<D0,
In above-mentioned back to back angle contact ball bearing, described outer ring is axially arranged with penetration hole along bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420496216.7U CN204061556U (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 |
|---|---|---|---|
| CN201420496216.7U CN204061556U (en) | 2014-08-29 | 2014-08-29 | Back to back angle contact ball bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204061556U true CN204061556U (en) | 2014-12-31 |
Family
ID=52203079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420496216.7U Expired - Fee Related CN204061556U (en) | 2014-08-29 | 2014-08-29 | Back to back angle contact ball bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204061556U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109563878A (en) * | 2016-08-03 | 2019-04-02 | 日本精工株式会社 | Ball bearing and spindle device for machine tool |
-
2014
- 2014-08-29 CN CN201420496216.7U patent/CN204061556U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109563878A (en) * | 2016-08-03 | 2019-04-02 | 日本精工株式会社 | Ball bearing and spindle device for machine tool |
| US10690180B2 (en) | 2016-08-03 | 2020-06-23 | Nsk Ltd. | Ball bearing and main shaft device for machine tool |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20200829 |