CN201599308U - Sealed angular contact ball bearing with high-rotating speed - Google Patents
Sealed angular contact ball bearing with high-rotating speed Download PDFInfo
- Publication number
- CN201599308U CN201599308U CN2009202766611U CN200920276661U CN201599308U CN 201599308 U CN201599308 U CN 201599308U CN 2009202766611 U CN2009202766611 U CN 2009202766611U CN 200920276661 U CN200920276661 U CN 200920276661U CN 201599308 U CN201599308 U CN 201599308U
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- China
- Prior art keywords
- rotating speed
- ball bearing
- contact ball
- angular contact
- seal
- 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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Abstract
The utility model discloses an angular contact ball bearing with high-rotating speed which comprises an outer sleeve, an inner sleeve, steel balls as well as a retainer positioned between the inner sleeve and the outer sleeve for retaining the distances between each steel ball; the inner surface of the outer sleeve and the outer surface of the inner sleeve are respectively provided with a channel for balls to roll; the two sides on the inner surface of the outer sleeve close to the edge thereof are respectively provided with a sealing groove; the inside of the sealing groove is provided with a dust-proof check ring; the outer circle of the dust-proof check ring is embedded in the sealing groove; the inner circle of the dust-proof check ring is pressed on the outer surface of the inner sleeve; and the curvature radius of the channel on the outer sleeve is smaller than that on the inner sleeve. The angular contact ball bearing with high-rotating speed adopts the technical scheme and has the characteristics of small installation space, high rotating speed and light weight; moreover, when compared with a small angular contact ball bearing with same cross section size, the angular contact ball bearing with high-rotating speed can hold more steel balls as straight hole type pockets are adopted, has large bearing capacity and more excellent sealing performance, and prolongs the surface life.
Description
Technical field
The utility model relates to a kind of bearing, exactly relates generally to a kind of high rotating speed angular contact ball bearing that is used for main shaft of numerical control machine tool.
Background technique
For satisfying its high-accuracy, high-revolving requirement, its main shaft bearing uses angular contact ball bearing substantially at existing miniature numerical control lathe.But because the volume of miniature numerical control lathe is little, thereby the installation position of angular contact ball bearing is comparatively narrow and small, and because main shaft of numerical control machine tool often is in the heavier environment of greasy dirt, if its rotating speed of small-sized angular contact ball bearing that employing is used always is lower and easily by oil pollution, do not reach the life requirements and the performance requirement of main frame.
The model utility content
The purpose of this utility model provides a kind of energy and satisfies existing miniature numerical control lathe installing space restriction, and the rotating speed height, and the angular contact ball bearing that the life-span is long, in light weight, band seals is to realize the optimum performance of numerical control machine tool.
The technical solution of the utility model is: a kind of high rotating speed, seal angle contact ball bearing, it is reached by overcoat, interior cover, steel ball and is used to keep the retainer of each steel ball spacing to form between interior overcoat, the circumferential surface of cover is respectively equipped with the raceway groove that rolls for steel ball in the interior cover face of described overcoat reaches, the both sides that are positioned at retainer on the interior cover face of described overcoat offer seal groove respectively, be provided with dust slinger in the seal groove, the cylindrical of this dust slinger is inlaid in the seal groove, on the circumferential surface that overlaps in dome is pressed in it; Put the radius of curvature of raceway groove less than the interior radius of curvature that puts raceway groove outside described.
Described dust slinger is single lipped joint touch seal ring.
The radius of curvature of described overcoat raceway groove is 0.525DW, and the radius of curvature of described interior cover raceway groove is 0.54DW.
The spaced apart pocket hole that is provided with of corresponding steel ball on the described retainer, each pocket hole is columniform straight hole.
The utility model adopts technique scheme, it has, and installing space is little, rotating speed is high, lightweight characteristics, and compare with the small-sized angular contact ball bearing of same cross-sectional size, because the pocket hole of having adopted the straight hole form, thereby can hold more steel ball, bearing capacity is big, and sealability is more superior, has prolonged the life-span of bearing.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of retainer in the utility model.
Embodiment
As shown in Figure 1, angular contact ball bearing of the present utility model comprises the retainer 6 that is used to keep each steel ball 3 spacing between overcoat 1, interior cover 2, steel ball 3 and the overcoat 1,2, the circumferential surface of cover 2 is respectively equipped with the raceway groove 11,21 that rolls for steel ball in the interior cover face of overcoat 1 reaches, the spaced apart pocket hole 7 that is provided with of corresponding steel ball on the retainer 6, each pocket hole 7 is columniform straight hole.In order to make its high speed performance reach best, in the present embodiment, the radius of curvature R e of the raceway groove 11 on the bearing outside 1 is 0.525DW, and the radius of curvature R i of the raceway groove 21 of interior cover 2 is 0.54DW.Because bearing is worked under oil pollution environment, therefore bearing adopts dual face seals, its both sides that are positioned at retainer on the interior cover face of overcoat 1 offer seal groove 4 respectively, be respectively equipped with single lipped joint touch seal ring 5 in two seal grooves 4, the cylindrical of single lipped joint touch seal ring 5 is inlaid in the seal groove 4, and dome is pressed on the circumferential surface of interior cover 2 in it.
Claims (4)
1. a high rotating speed, seal angle contact ball bearing, it comprises the retainer that is used to keep each steel ball spacing between overcoat, interior cover, steel ball and the overcoat, the circumferential surface of cover is respectively equipped with the raceway groove that rolls for steel ball in the interior cover face of described overcoat reaches, it is characterized in that, the both sides that are positioned at retainer on the interior cover face of described overcoat offer seal groove respectively, be provided with dust slinger in the seal groove, the cylindrical of this dust slinger is inlaid in the seal groove, on the circumferential surface that overlaps in dome is pressed in it; Put the radius of curvature of raceway groove less than the interior radius of curvature that puts raceway groove outside described.
2. high rotating speed according to claim 1, seal angle contact ball bearing is characterized in that, described dust slinger is single lipped joint touch seal ring.
3. high rotating speed according to claim 1, seal angle contact ball bearing is characterized in that, the radius of curvature of described overcoat raceway groove is 0.525DW, and the radius of curvature of described interior cover raceway groove is 0.54DW.
4. high rotating speed according to claim 1, seal angle contact ball bearing is characterized in that, the spaced apart pocket hole that is provided with of corresponding steel ball on the described retainer, and each pocket hole is columniform straight hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202766611U CN201599308U (en) | 2009-12-09 | 2009-12-09 | Sealed angular contact ball bearing with high-rotating speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202766611U CN201599308U (en) | 2009-12-09 | 2009-12-09 | Sealed angular contact ball bearing with high-rotating speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201599308U true CN201599308U (en) | 2010-10-06 |
Family
ID=42810363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202766611U Expired - Fee Related CN201599308U (en) | 2009-12-09 | 2009-12-09 | Sealed angular contact ball bearing with high-rotating speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201599308U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013443A (en) * | 2022-06-24 | 2022-09-06 | 重庆市新超力轴承有限公司 | Low-friction bearing |
-
2009
- 2009-12-09 CN CN2009202766611U patent/CN201599308U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013443A (en) * | 2022-06-24 | 2022-09-06 | 重庆市新超力轴承有限公司 | Low-friction bearing |
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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: 20101006 Termination date: 20171209 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |