CN204493447U - Machine tool chief axis rolling bearing - Google Patents
Machine tool chief axis rolling bearing Download PDFInfo
- Publication number
- CN204493447U CN204493447U CN201520054538.0U CN201520054538U CN204493447U CN 204493447 U CN204493447 U CN 204493447U CN 201520054538 U CN201520054538 U CN 201520054538U CN 204493447 U CN204493447 U CN 204493447U
- Authority
- CN
- China
- Prior art keywords
- rolling
- machine tool
- rolling element
- chief axis
- tool chief
- 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)
- Turning (AREA)
Abstract
A kind of machine tool chief axis rolling bearing is provided, the cylinder outer circumferential face of rolling element is set to the rolling surface between rolling element and inner ring and outer ring by it, and be provided with chamfered section at Cylindorical rod to two end part, attachment portion between above-mentioned chamfered section and above-mentioned rolling surface has lip part, therefore, above-mentioned machine tool chief axis rolling bearing does not carry out run-in and just can produce high-precision machined object.
Description
Technical field
The utility model relates to machine tool chief axis rolling bearing.
Background technique
In the past, the rolling bearing of the cylindric rolling element with bearing capacity excellence was useful in lathe, for this lathe, from the viewpoint of the lubricity of the rolling element of bearing, needed the run-in carrying out certain hour from running.On the other hand, consider from the requirement of the cost cutting of each based article, even if require that lathe eliminates run-in, also from the running of lathe, can just produce high-precision machined object by time point.
Model utility content
In order to solve above-mentioned problem, the utility model provides a kind of machine tool chief axis rolling bearing, there is outer ring, inner ring and cylindric rolling element, it is characterized in that, the cylinder outer circumferential face of described rolling element is set to the rolling surface between described rolling element and described inner ring and described outer ring, and be provided with chamfered section at Cylindorical rod to two end part, attachment portion between described chamfered section and described rolling surface has lip part (crowning portion), described rolling element is set to make the diameter D of described rolling element, and meet 2.0 × 10 from the cylinder axial end portion of described lip part to the relation between the radial distance E of rolling surface
-4≤ E/D.
When machine tool chief axis rolling bearing of the present utility model can operate from the initial stage of lathe, good lubricating status is paid to the rolling element of bearing, thus, does not carry out run-in and just can produce high-precision machined object.Thus, the reduction of cost of production can also be realized.
Accompanying drawing explanation
Fig. 1 is the figure of the rolling element representing machine tool chief axis rolling bearing of the present utility model.
Fig. 2 is the sectional view representing machine tool chief axis rolling bearing of the present utility model.
Fig. 3 is the sectional view of the variation representing machine tool chief axis rolling bearing of the present utility model.
Embodiment
As shown in Figure 1, Figure 2, Figure 3 shows, the machine tool chief axis rolling bearing 1 of present embodiment and deformability thereof has: the inner ring 2 on outer circumferential face with rolling surface; Inner peripheral surface has the outer ring 3 of rolling surface; The multiple rolling elements 4 rolled between inner ring 2 and the rolling surface each other of outer ring 3; With multiple rolling element 4 is accommodated and the retainer 5 mutually equally spaced kept.And the cylindrical shape of rolling element 4, cylinder outer circumferential face becomes the rolling surface 4a between rolling element 4 and inner ring 2 and outer ring 3.And, be provided with chamfered section 4c at the Cylindorical rod of rolling element to two ends, the attachment portion between chamfered section 4c and rolling surface 4a be provided with lip part 4b.Rolling element 4 is set, to make the diameter D of rolling element 4 and to meet 2.0 × 10 from the cylinder axial end portion of lip part 4b to the relation between the radial distance E of rolling surface
-4≤ E/D.
Thus, the machine tool chief axis rolling bearing 1 of present embodiment can pay good lubricating status to the rolling element of bearing when the initial stage of lathe operates, thus, does not carry out run-in and just can produce high-precision machined object.And, also play the effect can cutting down cost of production.
As shown in Figure 3, in the variation of machine tool chief axis rolling bearing, also can realize same action effect.
Claims (1)
1. a machine tool chief axis rolling bearing, there is the rolling element of outer ring, inner ring and cylindrical shape, it is characterized in that, the cylinder outer circumferential face of described rolling element is set to the rolling surface between described rolling element and described inner ring and described outer ring, and be provided with chamfered section at Cylindorical rod to two end part, attachment portion between described chamfered section and described rolling surface has lip part, described rolling element is set to make the diameter D of described rolling element and to meet 2.0 × 10 from the cylinder axial end portion of described lip part to the relation between the radial distance E of rolling surface
-4≤ E/D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520054538.0U CN204493447U (en) | 2015-01-27 | 2015-01-27 | Machine tool chief axis rolling bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520054538.0U CN204493447U (en) | 2015-01-27 | 2015-01-27 | Machine tool chief axis rolling bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204493447U true CN204493447U (en) | 2015-07-22 |
Family
ID=53572767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520054538.0U Expired - Fee Related CN204493447U (en) | 2015-01-27 | 2015-01-27 | Machine tool chief axis rolling bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204493447U (en) |
-
2015
- 2015-01-27 CN CN201520054538.0U patent/CN204493447U/en not_active Expired - Fee Related
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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: 20150722 Termination date: 20210127 |