CN204553553U - Self-aligning four-point contact ball - Google Patents
Self-aligning four-point contact ball Download PDFInfo
- Publication number
- CN204553553U CN204553553U CN201520247047.8U CN201520247047U CN204553553U CN 204553553 U CN204553553 U CN 204553553U CN 201520247047 U CN201520247047 U CN 201520247047U CN 204553553 U CN204553553 U CN 204553553U
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- China
- Prior art keywords
- outer ring
- point contact
- contact ball
- aligning
- bearing
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- Expired - Fee Related
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 26
- 238000005096 rolling process Methods 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 18
- 239000000428 dust Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Abstract
The utility model relates to a kind of Self-aligning four-point contact ball, comprise four-point contact ball body, four-point contact ball body comprises bearing inner race, bearing outer ring and rolling element, the inner peripheral surface of bearing outer ring is provided with outer ring raceway, the outer peripheral surface of bearing inner race is provided with inner ring raceway, the sectional shape of outer ring raceway and inner ring raceway is peach-shaped, rolling element and outer ring raceway, inner ring raceway is four point cantact, aligning axle sleeve is arranged with outside four-point contact ball body, the inner peripheral surface of aligning axle sleeve is provided with the annular sphere raceway groove that axial cross section shape is circular arc, the sphere of the outer peripheral surface of bearing outer ring to be axial cross section shape be circular arc, the outer peripheral surface of bearing outer ring and the annular sphere raceway groove of aligning axle sleeve suitable, can relatively rotate in the annular sphere raceway groove that bearing outer ring is inlaid in aligning axle sleeve.The utility model had both had less radial direction and axial internal clearance, can bear the advantage of radial and axial combined force simultaneously, and compact structure, there is self-aligning function.
Description
Technical field
The utility model relates to technical field of bearings, is specifically related to a kind of four-point contact ball.
Background technique
Four-point contact ball is the conventional bearing of a class, because it can bear the advantages such as the combined force of radial and axial (twocouese), axial clearance are less simultaneously, of many uses at machinery industry.
Traditional four-point contact ball comprises the compositions such as inner ring, outer ring, rolling element, retainer and seal ring (dust cover).Wherein inner ring can be two fractions or integrated type, and outer ring also can be two fractions or integrated type.Due to the circular arc composition that its Internal and external cycle raceway groove is the radiuses such as two sections of decentraction, similar to peach-shaped, therefore be called peach-shaped ditch, and form four point cantact with rolling element, therefore be called four-point contact ball.Because four-point contact ball can bear the combined force of radial and axial (twocouese) simultaneously, and when identical radial internal clearance, four-point contact ball axial internal clearance is axial compared with deep-groove ball less, is therefore widely used.But the angle mutually tilted due to its outer ring and inner ring is very little, usually only in a measure, therefore it is almost without aligning function.But in actual applications; due to the machining accuracy reason of housing and axle; deflection several angle understood usually by the shaft axis of axle and housing; requiring high occasion; therefore bearing is needed to have certain Self-aligning function; make up shaft axis deflection between housing and axle and produce bearing internal external lasso deflection, and then affect the usability of bearing, reduce the working life of bearing.
Summary of the invention
For overcoming the defect that prior art exists, the purpose of this utility model is to provide a kind of four-point contact ball with self-aligning function, and has compact structure, the advantage of use.
For achieving the above object, the utility model provides following technological scheme: a kind of Self-aligning four-point contact ball, include four-point contact ball body, four-point contact ball body includes bearing inner race, bearing outer ring and some rolling elements, the inner peripheral surface of described bearing outer ring is provided with outer ring raceway, the outer peripheral surface of bearing inner race is provided with inner ring raceway, the sectional shape of outer ring raceway and inner ring raceway is peach-shaped, rolling element and outer ring raceway, inner ring raceway is four point cantact, it is characterized in that: outside described four-point contact ball body, be arranged with aligning axle sleeve, the inner peripheral surface of aligning axle sleeve is provided with the annular sphere raceway groove that axial cross section shape is circular arc, the sphere of the outer peripheral surface of described bearing outer ring to be axial cross section shape be circular arc, the outer peripheral surface of bearing outer ring and the annular sphere raceway groove of aligning axle sleeve suitable, can relatively rotate in the annular sphere raceway groove that bearing outer ring is inlaid in aligning axle sleeve.
By adopting technique scheme, four-point contact ball installs aligning axle sleeve additional on bearing outer ring, bearing outer ring and the aligning axle sleeve of four-point contact ball adopt mating spherical surfaces, can relatively rotate, and then the shaft axis of aligning axle sleeve and four-point contact ball body can be made to be certain wrapping angle, so four-point contact ball is made to play the effect of self-aligning within the specific limits; Remain less radial direction and the axial internal clearance of four-point contact ball simultaneously, the advantages such as radial and axial combined force can be born simultaneously, and its structure is simple, convenient and practical.
The utility model is set to further: an axial port of described aligning axle sleeve offers two filling short slots positioned opposite, two load short slot forms for the charging aperture in four-point contact ball body loading annular sphere raceway groove, the maximum outside diameter loading diameter and the bearing outer ring of short slot is suitable, the maximum chord length of filling short slot and the axial width of bearing outer ring suitable.
By adopting technique scheme, when aligning axle sleeve and four-point contact ball body assemble, be cross square crossing by four-point contact ball and aligning axle sleeve, namely the radial direction of four-point contact ball aims at the charging aperture loaded short slot and formed, and push in aligning axle sleeve along charging aperture, afterwards four-point contact ball is radially turned over several angle, realize aligning axle sleeve and the coaxial assembling of four-point contact ball completes, facilitate four-point contact ball body to load in aligning axle sleeve, assemble reliably more convenient.
The utility model is set to further: described annular sphere raceway groove axial width is more than or equal to bearing outer ring axial width.
By adopting technique scheme, aligning axle sleeve comprises completely to four-point contact ball body, works more reliable and stable.
This practicality is newly set to further: the axial two-port between described bearing outer ring and bearing inner race is provided with seal ring, the inner peripheral surface of bearing outer ring is provided with dustproof groove, the radial outer end of described seal ring is fixedly inlaid in dustproof groove, seal ring radial inner end is provided with sealing lip, and sealing lip and bearing inner race are sealed and matched.
By adopting technique scheme, realizing four-point contact ball sealing, improving the usability of bearing.
The utility model is set to further: described seal ring includes skeleton and is coated on the rubber parts on skeleton, rubber parts is formed with dust excluder lips at seal ring radial outer end, described sealing lip is that rubber parts forms rubber seal lip in seal ring radial inner end, rubber seal lip includes the interior sealing lip axially extended inwardly, the intermediate seal lip of radial extension and outer seal lip, the inner peripheral surface of described bearing inner race is provided with a circle U-shaped seal groove, described intermediate seal lip embeds in U-shaped seal groove, the circumferential end faces that interior sealing lip and bearing inner race are positioned at inside U-shaped seal groove is sealed and matched, the circumferential end faces that outer seal lip and bearing inner race are positioned at outside U-shaped seal groove is sealed and matched.
By adopting technique scheme, design of Sealing Structure is reasonable, and sealing is reliable, improves the usability of bearing.
The utility model is set to further: described bearing inner race is positioned at circumferential end faces outside U-shaped seal groove and is positioned at circumferential end faces outside U-shaped seal groove lower than bearing inner race.
By adopting technique scheme, bearing inner race is formed outer low and inner high, and sealability is more superior, improves the usability of bearing.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is the utility model specific embodiment Self-aligning four-point contact ball structural representation;
Fig. 2 is the utility model specific embodiment aligning axle sleeve plan view;
Fig. 3 is the sectional view of Fig. 2 along A-A cutting;
Fig. 4 is from the utility model specific embodiment four-point contact ball body structure schematic diagram.
Embodiment
As shown in Fig. 1 ~ 4, disclosed in the utility model, a kind of Self-aligning four-point contact ball, includes four-point contact ball body, described four-point contact ball body includes bearing inner race 1, bearing outer ring 2 and some rolling elements 3, rolling element 3 is assemblied between bearing inner race 1 and bearing outer ring 2 through stamped steel retainer 4, the inner peripheral surface of described bearing outer ring 2 is provided with outer ring raceway 21, the outer peripheral surface of bearing inner race 2 is provided with inner ring raceway 11, the sectional shape of outer ring raceway 21 and inner ring raceway 11 is peach-shaped, rolling element 3 and outer ring raceway 21, inner ring raceway 31 is four point cantact, in this specific embodiment, outer ring raceway 21 and inner ring raceway 11 all have the arc groove of the radiuses such as two decentraction to be formed by connecting, peach-shaped raceway groove and rolling element 3 contact with each other and form a left side, right wrapping angle α, β, left wrapping angle α is identical with right wrapping angle β, working stability is reliable.Aligning axle sleeve 5 is arranged with outside described four-point contact ball body, the inner peripheral surface of aligning axle sleeve 5 is provided with the annular sphere raceway groove 51 that axial cross section shape is circular arc, the outer peripheral surface 22 of described bearing outer ring 2 for axial cross section shape be the sphere 22 of circular arc, the outer peripheral surface 22 of bearing outer ring 2 suitable with the annular sphere raceway groove 51 of aligning axle sleeve 5 (its radius is equal), can rotate in the annular sphere raceway groove 51 that bearing outer ring 2 is inlaid in aligning axle sleeve 5 relatively.Four-point contact ball installs aligning axle sleeve additional on bearing outer ring, bearing outer ring and the aligning axle sleeve of four-point contact ball adopt mating spherical surfaces, can relatively rotate, and then the shaft axis of aligning axle sleeve and four-point contact ball body can be made to be certain wrapping angle, so four-point contact ball is made to play the effect of self-aligning within the specific limits.Wherein, described annular sphere raceway groove 51 axial width is more than or equal to bearing outer ring 1 axial width, and preferential employing equals design; Aligning axle sleeve comprises completely to four-point contact ball body, works more reliable and stable.
The assembling of aligning axle sleeve and four-point contact ball for convenience, one axial port of described aligning axle sleeve 5 offers two filling short slots 52 positioned opposite, two load short slot 52 forms for the charging aperture in four-point contact ball body loading annular sphere raceway groove 51, the diameter of phi 1 loading short slot 52 is suitable with the maximum outside diameter Φ 2 of bearing outer ring 2, the diameter of phi 1 of usual filling short slot 52 is slightly larger than the maximum outside diameter Φ 2 of bearing outer ring 2, the maximum chord length L of filling the short slot 52 and axial width B of bearing outer ring 2 is suitable, usually, load the axial width B of maximum chord length L slightly larger than bearing outer ring 2 of short slot 52.When aligning axle sleeve 5 and four-point contact ball body assemble, be cross square crossing by four-point contact ball and aligning axle sleeve, namely the radial direction of four-point contact ball aims at the charging aperture loaded short slot and formed, and push in aligning axle sleeve along charging aperture, afterwards four-point contact ball is radially turned over several angle, realize aligning axle sleeve and the coaxial assembling of four-point contact ball completes, facilitate four-point contact ball body to load in aligning axle sleeve, assemble reliably more convenient.
For making the usability of four-point contact ball, axial two-port between described bearing outer ring 2 and bearing inner race 1 is provided with seal ring 6, the inner peripheral surface of bearing outer ring 2 is provided with dustproof groove 23, the radial outer end of described seal ring 6 is fixedly inlaid in dustproof groove 23, seal ring 6 radial inner end is provided with sealing lip, and sealing lip and bearing inner race 1 are sealed and matched.Described seal ring 6 includes skeleton 61 and is coated on the rubber parts 62 on skeleton 61, rubber parts 62 is formed with dust excluder lips 621 at seal ring 6 radial outer end, described sealing lip is that rubber parts 62 forms rubber seal lip in seal ring radial inner end, rubber seal lip includes the interior sealing lip 622 axially extended inwardly, the intermediate seal lip 623 of radial extension and outer seal lip 624, the inner peripheral surface of described bearing inner race 1 is provided with a circle U-shaped seal groove 12, described intermediate seal lip 623 embeds in U-shaped seal groove 12, the circumferential end faces that interior sealing lip 622 and bearing inner race 1 are positioned at inside U-shaped seal groove 12 is sealed and matched, the circumferential end faces that outer seal lip 624 and bearing inner race 1 are positioned at outside U-shaped seal groove 12 is sealed and matched.Described bearing inner race 1 is positioned at circumferential end faces outside U-shaped seal groove 12 and is positioned at circumferential end faces outside U-shaped seal groove 12 lower than bearing inner race 1.Bearing inner race is formed outer low and inner high, and sealability is more superior, improves the usability of bearing.
Claims (6)
1. a Self-aligning four-point contact ball, include four-point contact ball body, four-point contact ball body includes bearing inner race, bearing outer ring and some rolling elements, the inner peripheral surface of described bearing outer ring is provided with outer ring raceway, the outer peripheral surface of bearing inner race is provided with inner ring raceway, the sectional shape of outer ring raceway and inner ring raceway is peach-shaped, rolling element and outer ring raceway, inner ring raceway is four point cantact, it is characterized in that: outside described four-point contact ball body, be arranged with aligning axle sleeve, the inner peripheral surface of aligning axle sleeve is provided with the annular sphere raceway groove that axial cross section shape is circular arc, the sphere of the outer peripheral surface of described bearing outer ring to be axial cross section shape be circular arc, the outer peripheral surface of bearing outer ring and the annular sphere raceway groove of aligning axle sleeve suitable, can relatively rotate in the annular sphere raceway groove that bearing outer ring is inlaid in aligning axle sleeve.
2. Self-aligning four-point contact ball according to claim 1, it is characterized in that: an axial port of described aligning axle sleeve offers two filling short slots positioned opposite, two load short slot forms for the charging aperture in four-point contact ball body loading annular sphere raceway groove, the maximum outside diameter loading diameter and the bearing outer ring of short slot is suitable, the maximum chord length of filling short slot and the axial width of bearing outer ring suitable.
3. Self-aligning four-point contact ball according to claim 1 or 2, is characterized in that: described annular sphere raceway groove axial width is more than or equal to bearing outer ring axial width.
4. Self-aligning four-point contact ball according to claim 1 or 2, it is characterized in that: the axial two-port between described bearing outer ring and bearing inner race is provided with seal ring, the inner peripheral surface of bearing outer ring is provided with dustproof groove, the radial outer end of described seal ring is fixedly inlaid in dustproof groove, seal ring radial inner end is provided with sealing lip, and sealing lip and bearing inner race are sealed and matched.
5. Self-aligning four-point contact ball according to claim 4, it is characterized in that: described seal ring includes skeleton and is coated on the rubber parts on skeleton, rubber parts is formed with dust excluder lips at seal ring radial outer end, described sealing lip is that rubber parts forms rubber seal lip in seal ring radial inner end, rubber seal lip includes the interior sealing lip axially extended inwardly, the intermediate seal lip of radial extension and outer seal lip, the inner peripheral surface of described bearing inner race is provided with a circle U-shaped seal groove, described intermediate seal lip embeds in U-shaped seal groove, the circumferential end faces that interior sealing lip and bearing inner race are positioned at inside U-shaped seal groove is sealed and matched, the circumferential end faces that outer seal lip and bearing inner race are positioned at outside U-shaped seal groove is sealed and matched.
6. Self-aligning four-point contact ball according to claim 5, is characterized in that: described bearing inner race is positioned at circumferential end faces outside U-shaped seal groove and is positioned at circumferential end faces outside U-shaped seal groove lower than bearing inner race.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520247047.8U CN204553553U (en) | 2015-04-22 | 2015-04-22 | Self-aligning four-point contact ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520247047.8U CN204553553U (en) | 2015-04-22 | 2015-04-22 | Self-aligning four-point contact ball |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204553553U true CN204553553U (en) | 2015-08-12 |
Family
ID=53828668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520247047.8U Expired - Fee Related CN204553553U (en) | 2015-04-22 | 2015-04-22 | Self-aligning four-point contact ball |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204553553U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061488A (en) * | 2016-12-09 | 2017-08-18 | 瓦房店轴承集团有限责任公司 | Self-aligning both sides band block wing needle roller combination bearing |
| CN108150532A (en) * | 2017-12-26 | 2018-06-12 | 新昌县江北轴承有限公司 | A kind of detachable dual-purpose self-aligning roller bearing |
| CN108916216A (en) * | 2018-08-16 | 2018-11-30 | 江苏联动轴承股份有限公司 | A kind of self-aligning bearing |
| CN109268386A (en) * | 2018-12-04 | 2019-01-25 | 中山市盈科轴承制造有限公司 | Nonstandard four point contact is usherd to seat roller bearing units |
| CN109296631A (en) * | 2018-12-04 | 2019-02-01 | 中山市盈科轴承制造有限公司 | Nonstandard four point contacts roller bearing units |
| CN114598073A (en) * | 2021-11-12 | 2022-06-07 | 杭州中豪电动科技有限公司 | Assembled generator and range extender |
| CN116892575A (en) * | 2023-09-11 | 2023-10-17 | 河北佳顺不锈钢轴承制造有限公司 | Adjustable center type bearing seat |
| CN117595560A (en) * | 2024-01-19 | 2024-02-23 | 河北亿泰克轴承有限公司 | Bearing assembly and motor |
-
2015
- 2015-04-22 CN CN201520247047.8U patent/CN204553553U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061488A (en) * | 2016-12-09 | 2017-08-18 | 瓦房店轴承集团有限责任公司 | Self-aligning both sides band block wing needle roller combination bearing |
| CN108150532A (en) * | 2017-12-26 | 2018-06-12 | 新昌县江北轴承有限公司 | A kind of detachable dual-purpose self-aligning roller bearing |
| CN108916216A (en) * | 2018-08-16 | 2018-11-30 | 江苏联动轴承股份有限公司 | A kind of self-aligning bearing |
| CN109268386A (en) * | 2018-12-04 | 2019-01-25 | 中山市盈科轴承制造有限公司 | Nonstandard four point contact is usherd to seat roller bearing units |
| CN109296631A (en) * | 2018-12-04 | 2019-02-01 | 中山市盈科轴承制造有限公司 | Nonstandard four point contacts roller bearing units |
| CN114598073A (en) * | 2021-11-12 | 2022-06-07 | 杭州中豪电动科技有限公司 | Assembled generator and range extender |
| CN116892575A (en) * | 2023-09-11 | 2023-10-17 | 河北佳顺不锈钢轴承制造有限公司 | Adjustable center type bearing seat |
| CN116892575B (en) * | 2023-09-11 | 2024-01-09 | 河北佳顺不锈钢轴承制造有限公司 | Adjustable center type bearing seat |
| CN117595560A (en) * | 2024-01-19 | 2024-02-23 | 河北亿泰克轴承有限公司 | Bearing assembly and motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161019 Address after: 325000, No. 16, Yong Jiang Road, Wenzhou economic and Technological Development Zone, Longwan District, Zhejiang, Wenzhou Patentee after: WENZHOU MUTE BEARING Co.,Ltd. Patentee after: HANGZHOU C & U LARGE BEARING CO.,LTD. Address before: 325000 No. 412 Shiqiao Road, Xiacheng District, Zhejiang, Hangzhou Patentee before: HANGZHOU C & U LARGE BEARING CO.,LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 |