CN205298256U - Sealed ball supports and uses thrust angular contact ball bearing - Google Patents
Sealed ball supports and uses thrust angular contact ball bearing Download PDFInfo
- Publication number
- CN205298256U CN205298256U CN201620006052.4U CN201620006052U CN205298256U CN 205298256 U CN205298256 U CN 205298256U CN 201620006052 U CN201620006052 U CN 201620006052U CN 205298256 U CN205298256 U CN 205298256U
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- China
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- outer ring
- inner ring
- angular contact
- rolling element
- thrust angular
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Abstract
The utility model relates to a thrust angular contact bearing belongs to the bearing technology field, specifically is a sealed ball support and uses thrust angular contact bearing. The utility model discloses a solve present sealed ball and support with thrust angular contact bearing processing technology process is complicated, production cycle is long, the assembly difficulty, and the high -speed rotation problem of unable realization. The utility model discloses an outer lane, inner circle, holder, rolling element, and sealing member, the internal surface of outer lane is equipped with outer ring raceway, and the inner circle surface is equipped with the inner circle channel, keeps setting up between outer ring raceway and inner circle channel, and the rolling element inlays to be established in the holder, and the sealing member card is established between outer lane draw -in groove and inner circle draw -in groove, the line of rolling element and outer lane, inner circle contact is 60 with the contained angle of the perpendicular line of bearing rotating line, outer ring raceway's ditch curvature radius coefficient is 0.525, and the ditch curvature radius coefficient of inner circle channel 11 is 0.515. The utility model discloses simple structure, low in manufacturing cost, this product have high rotational speed, high accuracy, low temperature rise, long -life thrust angular contact bearing.
Description
Technical field
This utility model relates to a kind of angular contact thrust ball bearing, belongs to technical field of bearings.
Background technology
Generally, angular contact thrust ball bearing, in order to the axle head of rotating bearing ball leading screw, is arranged in bearing unit, and when being used in lathe, high precision and rigidity become the crucial factor guaranteeing superior machine tool capability.
Traditional Digit Control Machine Tool leading screw feed shaft, adopt organizes normal angular contact ball bearing more more, or the combination of deep groove ball bearing and thrust ball bearing. But applying on high-speed machine tool, this kind of configuration all exists that axial drag poor performance, axial pre-load be wayward, the rigidity of support deficiency problem of leading screw. Traditional Digit Control Machine Tool leading screw feed shaft, the spring bearing at its leading screw two ends mainly has: the first kind is to adopt normal angular contact ball bearing or taper roll bearing, for strengthening the how paired use of axial force; Equations of The Second Kind adopts the combination of deep groove ball bearing and thrust ball bearing; 3rd class adopts the combination of needle bearing and cylindrical roller thrust bearing. On high speed feed lathe, all there is short slab in above-mentioned configuration, and the axial bearing capacity of first kind configuration angular contact ball bearing is poor, and the high speed performance of taper roll bearing is poor; Equations of The Second Kind axial dimension is big and high speed performance is also poor; 3rd class is applicable to the operating mode of middle low speed, heavy duty, simultaneously existing sealing ball-screw support thrust angular contact bearing processing process complexity, production cycle length, assembling difficulty, and high-speed rotation cannot be realized, therefore it is badly in need of those skilled in the art and this is made improvements.
Utility model content
The purpose of this utility model is to solve existing sealing ball-screw support angular contact thrust ball bearing machining process complexity, production cycle length, assembling difficulty, and high-speed rotation problem cannot be realized, and then one is provided to seal ball-screw support angular contact thrust ball bearing.
The technical solution of the utility model:
A kind of ball-screw support angular contact thrust ball bearing that seals includes outer ring, inner ring, retainer, rolling element and sealing member, the inner surface of described outer ring is provided with outer ring raceway, described inner ring outer surface is provided with bear inner ring grooved railway, described retainer is located between outer ring raceway and bear inner ring grooved railway, described rolling element is embedded in retainer, the two ends of described outer ring and inner ring be respectively arranged at two ends with outer ring draw-in groove and inner ring draw-in groove, described sealing member is fastened between outer ring draw-in groove and inner ring draw-in groove;The angle of the vertical line of the line that described rolling element contacts with outer ring, inner ring and bearing rotary line is 60 ��; The Contact stress coefficient of described outer ring raceway is 0.525, and the Contact stress coefficient of described bear inner ring grooved railway is 0.515.
Preferred: described outer ring raceway both sides are provided with unequal straight rib footpath.
Preferred: the side of described bear inner ring grooved railway is provided with straight rib footpath, opposite side is provided with inclined flange footpath, and the connected bear inner ring grooved railway in inclined flange footpath constitutes the fore shaft of rolling element.
Preferred: described rolling element is plain bearing steel ball or Ceramic Balls.
Preferred: described retainer is polyamide retainer.
Preferred: the skeleton of described sealing member is steel skeleton, the shirt rim of sealing member is rubber.
This utility model has the advantages that a kind of sealing ball-screw support angular contact thrust ball bearing of the present utility model, inner ring and outer ring adopt special ditch curvature design, increase carrying rigidity, improve running accuracy and bearing life, adopting polyamide retainer, sealing member forms confined space with outer ring and inner ring, has both prevented grease leakage simultaneously, can prevent again impurity from entering, there is well impurity effect dust-proof, anti-. This utility model simple in construction, low cost of manufacture, it is possible to prevent cutting fluid and metal fillings from entering people in bearing, for the value that the application offer of lathe aspect is extra.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation sealing ball-screw support angular contact thrust ball bearing;
1-outer ring in figure, 2-inner ring, 3-retainer, 4-rolling element, 5-sealing member, 11-bear inner ring grooved railway, 12-outer ring raceway.
Detailed description of the invention
Detailed description of the invention one: present embodiment is described in conjunction with Fig. 1, the one of present embodiment seals ball-screw support angular contact thrust ball bearing and includes outer ring 1, inner ring 2, retainer 3, rolling element 4, and sealing member 5, the inner surface of described outer ring 1 is provided with outer ring raceway 12, described inner ring 2 outer surface is provided with bear inner ring grooved railway 11, described retainer 3 is located between outer ring raceway 12 and bear inner ring grooved railway 11, described rolling element 4 is embedded in retainer 3, the two ends of described outer ring 1 and inner ring 2 be respectively arranged at two ends with outer ring draw-in groove and inner ring draw-in groove, described sealing member 5 is fastened between outer ring draw-in groove and inner ring draw-in groove, the angle of the vertical line of the line that described rolling element 4 contacts with outer ring 1, inner ring 2 and bearing rotary line is 60 ��, the Contact stress coefficient of described outer ring raceway 12 is 0.525, and the Contact stress coefficient of described bear inner ring grooved railway 11 is 0.515, described outer ring raceway 12 both sides are provided with unequal straight rib footpath, the side of described bear inner ring grooved railway 11 is provided with straight rib footpath, and opposite side is provided with inclined flange footpath, and the connected bear inner ring grooved railway 11 in inclined flange footpath constitutes the fore shaft of rolling element 4, described rolling element 4 is plain bearing steel ball or Ceramic Balls, described retainer 3 is polyamide retainer. so arrange, make structure optimizes more, decrease the composition of assembly, the angle of the vertical line of the line that rolling element 4 contacts with outer ring raceway 12, rolling element 4 and bear inner ring grooved railway 11 and bearing rotary line is 60 ��, above-mentioned angle is the contact angle of angular contact ball bearing, so can make to be more prone to when assembling between rolling element 4 and outer ring 1, inner ring 2, and still can guarantee that there is higher rigidity and axial carrying capacity, additionally it is possible to there is good high-speed rotation and low heat generation, outer ring raceway 12 Contact stress coefficient elects 0.525 as, and the Contact stress coefficient of bear inner ring grooved railway 1 elects 0.515 as, can increase the carrying rigidity of bearing to greatest extent, extends the service life of bearing,Retainer 3 is polyamide retainer, and the retainer that this material makes is lightweight, can improve the flexibility of revolution of bearing, be more suitable for the high speed rotating of bearing; It is equipped with, in outer ring raceway 12 and bear inner ring grooved railway 11, the grease layer being made up of grease, improves greasy property, reduce noise, improve limit speed and bearing life.
Detailed description of the invention two: present embodiment is described in conjunction with Fig. 1, the skeleton of a kind of sealing member 5 sealed described in ball-screw support angular contact thrust ball bearing of present embodiment is steel skeleton, and the shirt rim of sealing member 5 is rubber. So arrange, sealing member 5 and outer ring draw-in groove are fitted and connected, sealing member 5 and inner ring draw-in groove are connected together, sealing is tightly connected formation confined space with outer ring 1 and inner ring 2 respectively, the skeleton of sealing member is steel skeleton, and shirt rim is rubber, has both prevented grease leakage, can prevent again impurity from entering, there is well impurity effect dust-proof, anti-.
Present embodiment is the exemplary illustration to this patent, does not limit its protection domain, and its local can also be changed by those skilled in the art, as long as no the spirit beyond this patent, all in the protection domain of this patent.
Claims (6)
1. a sealing ball-screw supports and uses thrust angular contact bearing, it is characterized in that: include outer ring (1), inner ring (2), retainer (3), rolling element (4), and sealing member (5), the inner surface of described outer ring (1) is provided with outer ring raceway (12), described inner ring (2) outer surface is provided with bear inner ring grooved railway (11), described retainer (3) is located between outer ring raceway (12) and bear inner ring grooved railway (11), described rolling element (4) is embedded in retainer (3), the two ends of described outer ring (1) and inner ring (2) be respectively arranged at two ends with outer ring draw-in groove and inner ring draw-in groove, described sealing member (5) is fastened between outer ring draw-in groove and inner ring draw-in groove, the angle of the vertical line of the line that described rolling element (4) contacts with outer ring (1), inner ring (2) and bearing rotary line is 60 ��, the Contact stress coefficient of described outer ring raceway (12) is 0.525, and the Contact stress coefficient of described bear inner ring grooved railway (11) is 0.515.
2. a kind of sealing ball-screw support thrust angular contact bearing according to claim 1, it is characterised in that: described outer ring raceway (12) both sides are provided with unequal straight rib footpath.
3. a kind of sealing ball-screw support thrust angular contact bearing according to claim 1, it is characterized in that: the side of described bear inner ring grooved railway (11) is provided with straight rib footpath, opposite side is provided with inclined flange footpath, and the connected bear inner ring grooved railway in inclined flange footpath (11) constitutes the fore shaft of rolling element (4).
4. a kind of sealing ball-screw support thrust angular contact bearing according to claim 1, it is characterised in that: described rolling element (4) is plain bearing steel ball or Ceramic Balls.
5. a kind of sealing ball-screw support thrust angular contact bearing according to claim 1, it is characterised in that: described retainer (3) is polyamide retainer.
6. a kind of sealing ball-screw support thrust angular contact bearing according to claim 1, it is characterised in that: the skeleton of described sealing member (5) is steel skeleton, and the shirt rim of sealing member (5) is rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620006052.4U CN205298256U (en) | 2016-01-04 | 2016-01-04 | Sealed ball supports and uses thrust angular contact ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620006052.4U CN205298256U (en) | 2016-01-04 | 2016-01-04 | Sealed ball supports and uses thrust angular contact ball bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205298256U true CN205298256U (en) | 2016-06-08 |
Family
ID=56484974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620006052.4U Active CN205298256U (en) | 2016-01-04 | 2016-01-04 | Sealed ball supports and uses thrust angular contact ball bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205298256U (en) |
-
2016
- 2016-01-04 CN CN201620006052.4U patent/CN205298256U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |