CN204226426U - A kind of two-row ball bearing - Google Patents
A kind of two-row ball bearing Download PDFInfo
- Publication number
- CN204226426U CN204226426U CN201420674901.4U CN201420674901U CN204226426U CN 204226426 U CN204226426 U CN 204226426U CN 201420674901 U CN201420674901 U CN 201420674901U CN 204226426 U CN204226426 U CN 204226426U
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- row
- bearing
- outer ring
- gyration center
- steel ball
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Abstract
The utility model relates to a kind of two-row ball bearing, comprise bearing inner race and bearing outer ring, bearing inner race outer peripheral surface is provided with two axial arranged row bear inner ring grooved railway, bearing outer ring inner peripheral surface is provided with two axial arranged row outer ring raceway, two row bear inner ring grooved railway of bearing inner race coordinate formation two row steel ball rolling channel with two row outer ring raceway one_to_one corresponding of bearing outer ring, retainer is established respectively in two row steel ball rolling channels, a row steel ball is all established in retainer in two row steel ball rolling channels between bearing inner race and bearing outer ring, the gyration center footpath that two row steel balls rotate is respectively gyration center footpath D1 and gyration center footpath D2, wherein the gyration center footpath D1 of a row steel ball is less than the gyration center footpath D2 of another row steel ball.The utility model compared with prior art, both remained the adaptation higher rotation speed requirement of former two-row ball bearing, and realized again two-row ball bearing axial carrying capacity and improve, there is the high load ability of tapered roller bearing, have structure simple, fabrication design is advantage easily simultaneously.
Description
Technical field
The utility model relates to technical field of bearings, is specifically related to a kind of two-row ball bearing.
Background technique
Two-row ball bearing has double-row angular contact bal bearing and biserial deep groove ball bearing usually; Radial load and axial load can be born simultaneously.Biserial deep groove ball bearing, except bearing radial load, can also bear the axial load acting on both direction; Double-row angular contact bal bearing can bear radial load and act on the axial load of both direction.Above-mentioned two-row ball bearing comparatively tapered roller bearing is compared, and its load-carrying ability is on the weak side, at the environment that loading demands is higher, usually cannot well adapt to; But tapered roller bearing is compared to two-row ball bearing, exists again and can not adapt to higher rotation speed applications very well.Therefore, under some load and the higher environment of rotation speed requirements, existing two-row ball bearing and tapered roller bearing all can not well be suitable for.
Summary of the invention
For the deficiency that prior art exists, the purpose of this utility model is that providing one can be suitable for higher rotation speed occasion uses, and has again the two-row ball bearing of high load ability, has the advantage that structure is simple and easy to process simultaneously.
For achieving the above object, the utility model provides following technological scheme: a kind of two-row ball bearing, include bearing inner race, bearing outer ring and retainer, bearing inner race outer peripheral surface is provided with two axial arranged row bear inner ring grooved railway, bearing outer ring inner peripheral surface is provided with two axial arranged row outer ring raceway, two row bear inner ring grooved railway of bearing inner race coordinate formation two row steel ball rolling channel with two row outer ring raceway one_to_one corresponding of bearing outer ring, described retainer is respectively arranged with in two row steel ball rolling channels, a row steel ball is equipped with in retainer in two row steel ball rolling channels between bearing inner race and bearing outer ring, the gyration center footpath that two row steel balls rotate is respectively gyration center footpath D1 and gyration center footpath D2, it is characterized in that: the gyration center footpath D1 of a described wherein row steel ball is less than the gyration center footpath D2 of another row steel ball.
By adopting technique scheme, former two-row ball bearing is improved, both the adaptation higher rotation speed requirement of former two-row ball bearing had been remained, realize again two-row ball bearing axial carrying capacity to improve, there is the high load ability of tapered roller bearing, structure is simple simultaneously, has fabrication design advantage easily.
The utility model is set to further: the gyration center axis of described two row steel balls shifts to install.
By adopting technique scheme, adopting the gyration center axis of two row steel balls to shift to install, making the load-carrying ability of two-row ball bearing better.
The utility model is set to further: the gyration center axis of described two row steel balls overlaps and arranges.
By adopting technique scheme, the gyration center axis of two row steel balls overlaps, then more simple and convenient in processing.
The utility model is set to further: described two-row ball bearing is double-row angular contact bal bearing.
Described two-row ball bearing is biserial deep groove ball bearing.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is the utility model specific embodiment structural representation.
Embodiment
See accompanying drawing 1, a kind of two-row ball bearing disclosed in the utility model, wherein, two-row ball bearing can be double-row angular contact bal bearing or biserial deep groove ball bearing, its distinctive points is that wrapping angle is different, biserial deep groove ball bearing wrapping angle is 0 °, and the wrapping angle of double-row angular contact bal bearing is 15 °, 25 °, 40 ° etc., and main structure is identical; For ease of describing, this specific embodiment, is described in detail for double-row angular contact bal bearing;
It includes bearing inner race 1, bearing outer ring 2 and retainer, bearing inner race 1 outer peripheral surface is provided with two axial arranged row bear inner ring grooved railway 11,12, bearing outer ring 2 inner peripheral surface is provided with two axial arranged row outer ring raceway 21,22, and two row bear inner ring grooved railway 11,12 of bearing inner race 1 coordinate formation two row steel ball rolling channel with two row outer ring raceway 21,22 one_to_one corresponding of bearing outer ring 2; Described retainer 31,32 is respectively arranged with in two row steel ball rolling channels, the gyration center footpath being equipped with row steel ball 41,42, two row steel ball 41,42 rotation between bearing inner race 1 and bearing outer ring 2 in two row steel ball rolling channels in retainer 31,32 is respectively gyration center footpath D1 and gyration center footpath D2; Its gyration center axis is respectively O1 and O2.The gyration center footpath D1 of a described wherein row steel ball 41 is less than the gyration center footpath D2 of another row steel ball 42.Former two-row ball bearing is improved, both the adaptation higher rotation speed requirement of former two-row ball bearing had been remained, the gyration center footpath D1 of two row steel balls and the unequal design of gyration center footpath D2, realize two-row ball bearing axial carrying capacity to improve, there is the high load ability of tapered roller bearing, structure is simple simultaneously, has fabrication design advantage easily.Wherein, the gyration center footpath D1 of two row steel balls and the unequal design of gyration center footpath D2, can be realized by the Position Design of two row steel ball rolling channels.
Two-row ball bearing in the utility model, gyration center axis O1 and O2 of described two row steel balls 41,42 shifts to install, and also can be the design (being the design that overlaps in Fig. 1) that overlaps; Gyration center axis O1 and O2 of two row steel balls is adopted to shift to install down, compared with difficulty under gyration center axis O1 and the O2 coincidence design of two row steel balls on difficulty of processing, but adopt gyration center axis O1 and O2 of two row steel balls to shift to install down, the load-carrying ability that its bearing capacity arranges lower two-row ball bearing compared with gyration center axis O1 and the O2 coincidence of two row steel balls is better.
Claims (5)
1. a two-row ball bearing, include bearing inner race, bearing outer ring and retainer, bearing inner race outer peripheral surface is provided with two axial arranged row bear inner ring grooved railway, bearing outer ring inner peripheral surface is provided with two axial arranged row outer ring raceway, two row bear inner ring grooved railway of bearing inner race coordinate formation two row steel ball rolling channel with two row outer ring raceway one_to_one corresponding of bearing outer ring, described retainer is respectively arranged with in two row steel ball rolling channels, a row steel ball is equipped with in retainer in two row steel ball rolling channels between bearing inner race and bearing outer ring, the gyration center footpath that two row steel balls rotate is respectively gyration center footpath D1 and gyration center footpath D2, it is characterized in that: the gyration center footpath D1 of a described wherein row steel ball is less than the gyration center footpath D2 of another row steel ball.
2. two-row ball bearing according to claim 1, is characterized in that: the gyration center axis of described two row steel balls shifts to install.
3. two-row ball bearing according to claim 1, is characterized in that: the gyration center axis of described two row steel balls overlaps and arranges.
4. two-row ball bearing according to claim 1 or 2 or 3, is characterized in that: described two-row ball bearing is double-row angular contact bal bearing.
5. two-row ball bearing according to claim 1 or 2 or 3, is characterized in that: described two-row ball bearing is biserial deep groove ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420674901.4U CN204226426U (en) | 2014-11-13 | 2014-11-13 | A kind of two-row ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420674901.4U CN204226426U (en) | 2014-11-13 | 2014-11-13 | A kind of two-row ball bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204226426U true CN204226426U (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420674901.4U Active CN204226426U (en) | 2014-11-13 | 2014-11-13 | A kind of two-row ball bearing |
Country Status (1)
| Country | Link |
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| CN (1) | CN204226426U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848267A (en) * | 2019-12-27 | 2020-02-28 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Yaw bearing of S-shaped positioning rotary diameter structure |
-
2014
- 2014-11-13 CN CN201420674901.4U patent/CN204226426U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848267A (en) * | 2019-12-27 | 2020-02-28 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Yaw bearing of S-shaped positioning rotary diameter structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201400 Fengcheng Town, Fengxian District, Shanghai Patentee after: SHANGHAI C&U DOUBLE ROW BEARING Co.,Ltd. Patentee after: Shanghai renben group bearing technology R & D Co.,Ltd. Address before: 201400 Fengcheng Town, Fengxian District, Shanghai Patentee before: SHANGHAI C&U DOUBLE ROW BEARING Co.,Ltd. Patentee before: SHANGHAI SIBOTE BEARING TECHNOLOGY RESEARCH & DEVELOPMENT Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |