CN201121647Y - Dual column composite angular contact ball bearing - Google Patents
Dual column composite angular contact ball bearing Download PDFInfo
- Publication number
- CN201121647Y CN201121647Y CNU2007200420465U CN200720042046U CN201121647Y CN 201121647 Y CN201121647 Y CN 201121647Y CN U2007200420465 U CNU2007200420465 U CN U2007200420465U CN 200720042046 U CN200720042046 U CN 200720042046U CN 201121647 Y CN201121647 Y CN 201121647Y
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- Prior art keywords
- ring
- bearing
- rolling element
- inner ring
- precision
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- Expired - Fee Related
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- 239000002131 composite material Substances 0.000 title 1
- 230000009977 dual effect Effects 0.000 title 1
- 238000005096 rolling process Methods 0.000 claims abstract description 21
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a double-row angular contact ball bearing, including a bearing outer ring, a bearing inner ring, a rolling element, a retainer and a sealing ring. The axial center of the inner hole of the bearing outer ring is provided with a rollaway nest blocking edge both sides of which are respectively provided with an annular arc-shaped bulge matched with the outer diameter of the rolling element; the bearing inner ring comprises a first inner ring and a second inner ring; the outer diameters of the first inner ring and the second inner ring are respectively provided with an annular arch groove matched with the outer diameter of the rolling element. The annular arc-shaped bulge is one-to-one corresponding to the annular arc-shaped groove to form tow radial rollaway nests; the rolling element together with the retainer are arranged on the two radial rollaway nests, and the angel Alpha of contact for the bearing ranges from 45 degrees to 65 degrees. The double-row angular contact ball bearing can bear the heavy axial and radial loading; the bearing has a higher precision and can be arranged directly. The difficulty for assembling machine tools is reduced, the precision of assembling of the machine tools is improved and the requirements to the precision of precision lead screw in the modern precision machine tools are satisfied.
Description
Technical field
The utility model relates to a kind of angular contact ball bearing, relates in particular to a kind of combination bearing with biserial ball, belongs to technical field of bearings.
Background technique
The accurate screw mandrel supported configurations of existing high-precision numerical control machine the highi degree of accuracy combination bearing, the angular contact ball bearings that this combination bearing is used by minimum two covers or the above pairing of two covers constitute.Owing to the equipment precision requirement height, therefore also high to the required precision of single bearing, overlap with the bearing accuracy requirement after the upper bearing (metal) pairing higher to two covers and two simultaneously.But, because two cover bearings and two covers can not be just the same with the precision of upper bearing (metal), after the pairing assembling, the bearing pack precise decreasing after this bearing pack attaches together lathe, can have influence on the precision of lathe, in addition, because many cover bearings will be installed, increased the assembling difficulty of lathe on accurate screw mandrel.Installation precision also is difficult to guarantee.
The model utility content
For the precision that solves the accurate screw mandrel spring bearing of existing high-precision numerical control machine group not high, and many sleeves are installed on accurate screw mandrel are taken up and join the bigger problem of difficulty, the utility model proposes a kind of biserial combination angle contact ball bearing, this combination angle contact ball bearing precision is higher, can be assemblied in easily on the accurate screw mandrel.
The purpose of this utility model is achieved by the following technical programs.
A kind of biserial combination angle contact ball bearing comprises bearing outer ring, bearing inner race, rolling element, retainer, seal ring.Described rolling element is arranged in the retainer by the interval annular that equates, the radially outer edge of described seal ring is installed in the interior hole slot at the axial two ends of bearing outer ring, and the axial central authorities at the bearing outer ring outer circumferential face are provided with radially oil hole; Axial central authorities at the endoporus of bearing outer ring, be provided with ring-type raceway rib, described ring-type raceway rib both sides respectively are provided with the ring-type arc convex that coincide with the rolling element external diameter, described bearing inner race comprises first inner ring, second inner ring, the external diameter of described first inner ring, second inner ring respectively is provided with a ring-type curve bath that coincide with the rolling element external diameter, the ring-type curve bath cambered surface of the ring-type curve bath of described first inner ring and second inner ring is relatively arranged, described ring-type arc convex and ring-type curve bath are corresponding one by one, have constituted two radially raceways; Described rolling element is separately positioned on two radially on the raceway together with retainer.
The purpose of this utility model can also further realize by following technical measures.
Aforesaid biserial combination angle contact ball bearing, wherein said bearing contact angle α are 45 °～65 °.
Because the precision of biserial combination angle contact ball bearing self of the present utility model is higher, axial dimension is very little, has both satisfied the modern precision lathe to the required precision that accurate screw mandrel supports, and has satisfied the installation dimension requirement of modern precision lathe again.Its 45 °～65 ° wrapping angle and the aspectant structure of biserial rolling element make the utility model can bear bi-directional axial and heavy load radially.The utility model can directly be installed, and is directly lubricated.Reduce the lathe assembling difficulty, improved the lathe assembly precision.
Advantage of the present utility model and characteristics will illustrate by the non-limitative illustration of following preferred embodiment and explain that these embodiments only provide as an example with reference to accompanying drawing.
Description of drawings
Fig. 1 is a sectional view of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1, biserial combination angle contact ball bearing of the present utility model is made up of bearing outer ring 1, bearing inner race 2, rolling element 3, retainer 4 and seal ring 5, and two annular retainers 4 side by side separate rolling element 2 by the interval that equates.Two seal rings 5 respectively are contained in the interior hole slot at bearing outer ring 1 axial two ends, and rolling element 2 is enclosed in the bearing together with retainer 4, have prevented that effectively dust and foul from entering two radially raceways, prolonged the working life of bearing.Radially oil hole 14 is arranged on the axial central authorities of bearing outer ring 1 outer circumferential face, is used for to 11, the 12 perfusion lubricant oil of raceway radially, and it is lubricated fully that it is obtained.Raceway rib 13 is arranged on the axial central authorities at the endoporus of bearing outer ring 1, and its both sides respectively are provided with the ring-type arc convex 11,12 that coincide with rolling element 3 external diameters.Bearing inner race 2 comprises first inner ring 21, second inner ring 22, the external diameter of first inner ring 21, second inner ring 22 respectively is provided with a ring-type curve bath 211,212 that coincide with rolling element 3 external diameters, ring-type curve bath 212 cambered surfaces of the ring-type curve bath 211 of first inner ring 21 and second inner ring 22 are relatively arranged, ring-type arc convex 11 and ring-type curve bath 211, ring-type arc convex 12 and ring-type curve bath 212 have constituted two radially raceways.Rolling element 3 is separately positioned on two radially on the raceway together with retainer 4.The wrapping angle α of the utility model bearing is 45 °～65 °, can bear bi-directional axial load and radial load.
In addition to the implementation, the utility model can also have other mode of executions, and all employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.
Claims (2)
1. biserial combination angle contact ball bearing, comprise bearing outer ring (1), bearing inner race (2), rolling element (3), retainer (4), seal ring (5), described rolling element (2) is arranged in the retainer (4) by the interval annular that equates, the radially outer edge of described seal ring (5) is installed in the interior hole slot at the axial two ends of bearing outer ring (1), in the axial central authorities of bearing outer ring (1) outer circumferential face, be provided with radially oil hole (14); It is characterized in that, axial central authorities at the endoporus of bearing outer ring (1), be provided with ring-type raceway rib (13), described ring-type raceway rib (13) both sides respectively are provided with the ring-type arc convex (11) that coincide with rolling element (3) external diameter, (12), described bearing inner race (2) comprises first inner ring (21), second inner ring (22), described first inner ring (21), the external diameter of second inner ring (22) respectively is provided with a ring-type curve bath (211) that coincide with rolling element (3) external diameter, (212), ring-type curve bath (212) cambered surface of the ring-type curve bath (211) of described first inner ring (21) and second inner ring (22) is relatively arranged, described ring-type arc convex (11) and ring-type curve bath (211), ring-type arc convex (12) and ring-type curve bath (212) have constituted two radially raceways; Described rolling element (3) is separately positioned on two radially on the raceway together with retainer (4).
2. biserial combination angle contact ball bearing according to claim 1 is characterized in that, biserial combination angle contact ball bearing wrapping angle α is 45 °～65 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200420465U CN201121647Y (en) | 2007-12-05 | 2007-12-05 | Dual column composite angular contact ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200420465U CN201121647Y (en) | 2007-12-05 | 2007-12-05 | Dual column composite angular contact ball bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201121647Y true CN201121647Y (en) | 2008-09-24 |
Family
ID=40008874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200420465U Expired - Fee Related CN201121647Y (en) | 2007-12-05 | 2007-12-05 | Dual column composite angular contact ball bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201121647Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012031561A1 (en) * | 2010-09-08 | 2012-03-15 | 青岛丰宝汽车离合器有限公司 | Bidirectional-limiting bridge bearing |
| CN102562787A (en) * | 2012-02-02 | 2012-07-11 | 宁波市鄞州金鑫轴承五金有限公司 | Two-raceway two-direction angular contact bearing |
| CN102650317A (en) * | 2011-02-25 | 2012-08-29 | 日本精工株式会社 | Multi-row combination ball bearing |
| CN103216524A (en) * | 2013-05-06 | 2013-07-24 | 无锡市第二轴承有限公司 | High-speed precise combined bearing |
| EP3163104A1 (en) * | 2015-10-30 | 2017-05-03 | Flottweg SE | Double-direction angular contact thrust rolling bearing in back-to-back arrangement |
| CN108150526A (en) * | 2017-12-26 | 2018-06-12 | 新昌县江北轴承有限公司 | A kind of high heat dissipation bidirectional angular contact thrust ball bearing of lathe |
-
2007
- 2007-12-05 CN CNU2007200420465U patent/CN201121647Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012031561A1 (en) * | 2010-09-08 | 2012-03-15 | 青岛丰宝汽车离合器有限公司 | Bidirectional-limiting bridge bearing |
| CN102650317A (en) * | 2011-02-25 | 2012-08-29 | 日本精工株式会社 | Multi-row combination ball bearing |
| CN102650317B (en) * | 2011-02-25 | 2015-10-28 | 日本精工株式会社 | Multiple row compound ball bearing |
| CN102562787A (en) * | 2012-02-02 | 2012-07-11 | 宁波市鄞州金鑫轴承五金有限公司 | Two-raceway two-direction angular contact bearing |
| CN103216524A (en) * | 2013-05-06 | 2013-07-24 | 无锡市第二轴承有限公司 | High-speed precise combined bearing |
| CN103216524B (en) * | 2013-05-06 | 2016-06-29 | 无锡市第二轴承有限公司 | High speed and precision combination bearing |
| EP3163104A1 (en) * | 2015-10-30 | 2017-05-03 | Flottweg SE | Double-direction angular contact thrust rolling bearing in back-to-back arrangement |
| DE102015118599B4 (en) * | 2015-10-30 | 2020-01-30 | Flottweg Se | bearing arrangement |
| CN108150526A (en) * | 2017-12-26 | 2018-06-12 | 新昌县江北轴承有限公司 | A kind of high heat dissipation bidirectional angular contact thrust ball bearing of lathe |
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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: 20080924 Termination date: 20161205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |