CN2599307Y - four-point contact ball bearing - Google Patents
four-point contact ball bearing Download PDFInfo
- Publication number
- CN2599307Y CN2599307Y CNU022876871U CN02287687U CN2599307Y CN 2599307 Y CN2599307 Y CN 2599307Y CN U022876871 U CNU022876871 U CN U022876871U CN 02287687 U CN02287687 U CN 02287687U CN 2599307 Y CN2599307 Y CN 2599307Y
- Authority
- CN
- China
- Prior art keywords
- bearing
- ball
- outer ring
- balls
- contact
- 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
Links
- 230000007704 transition Effects 0.000 claims description 2
- 230000001050 lubricating effect Effects 0.000 abstract description 5
- 239000004519 grease Substances 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000010687 lubricating oil Substances 0.000 abstract 1
- 239000000314 lubricant Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/16—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
- F16C19/163—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls with angular contact
- F16C19/166—Four-point-contact ball bearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a four-point contact ball bearing, which comprises a bearing inner ring, balls and a bearing outer ring, wherein the balls are arranged between the bearing inner ring and the bearing outer ring, annular raceways are respectively arranged on the bearing inner ring and the bearing outer ring, each annular raceway and each ball are in two-point contact, and an included angle beta between the two contact points and a connecting line at the center of the ball is 30-120 degrees; because two contact points are arranged between the annular roller paths on the bearing inner ring and the bearing outer ring and the balls, and the included angle beta between the two contact points is 30-120 degrees, when the bearing is under the same load, the radial force of each contact point of the balls is smaller than that of the balls in the existing ball bearing, the bearing can bear the axial force, and simultaneously, because a gap is reserved between the balls and the annular roller paths, the bearing is convenient for storing lubricating oil or lubricating grease, is beneficial to improving the lubricating condition of the balls, and can prolong the service life of the bearing.
Description
Technical field
The utility model relates to a kind of bearing, relates in particular to a kind of ball bearing.
Background technique
The ball bearing that generally uses all comprises bearing inner race at present, ball and bearing outer ring, ball is arranged between bearing inner race and the bearing outer ring, on bearing outer ring and bearing inner race, be equipped with ring raceway, the sectional shape of ring raceway is a circular arc, and the radius of this circular arc is greater than the radius of ball, the ball journal of this structure can only bear radial load, can not bear thrust load, and each ball and bearing outer ring and bearing inner race have only a point of contact respectively, the radially bearing capacity of bearing also is subjected to certain limitation, when the bearing physical dimension is restricted, and when bearing the ultimate bearing load greater than existing ball bearing, will reduce widely the working life of the bearing of this structure.Require the physical dimension of bearing little in other words on many special devices with specific (special) requirements, bearing capacity is big, thereby existing ball bearing can't satisfy the requirement of the said equipment.
Summary of the invention
Goal of the invention of the present utility model is to provide a kind of novel ball bearing, under equal specification, equal rotational velocity condition, this ball bearing can not only bear also bigger than the radial limits bearing load of existing ball bearing, and it can also bear thrust load, can improve the lubricating condition of ball simultaneously.
Problem to be solved in the utility model is the sectional shape that changes the ring raceway that existing bearing inner race and bearing outer ring be provided with, and optimizes the force-bearing situation of ball.
The utility model is to solve the problems referred to above by following technical solution:
The ball bearing of 4 contacts described in the utility model comprises bearing inner race, ball and bearing outer ring, ball is arranged between bearing inner race and the bearing outer ring, on bearing inner race and bearing outer ring, be equipped with ring raceway, it is characterized in that: the sectional shape of the ring raceway on the described bearing inner race and the sectional shape of the ring raceway on the bearing outer ring are symmetrical, every raceway all has contact at 2 with each ball, and the angle β between the connecting line at two point of contact and ball center is 30 °-120 °.
As to improvement of the present utility model, the sectional shape of the described ring raceway two sections circular arcs that are symmetrical in the ball axis of serving as reasons are formed, and the radius R of this circular arc is greater than the radius r of ball, and described ball and above-mentioned two circular arcs are inscribe mutually.
As to further improvement of the utility model, the sectional shape of described ring raceway is one " V " type cross section tangent with described ball, and the bottom in " V " type cross section is connected by circular arc.
Owing between ring raceway on bearing inner race and the bearing outer ring and the ball two point of contact are arranged all, and angle β is between 30 °-120 ° between two point of contact, by as can be known to the force analysis of ball, this bearing is when being subjected to equal load, the radial force that each point of contact of ball is subjected to is all less than the suffered radial force of ball in the existing ball bearing, this bearing can also bear axial force, simultaneously owing between ball and ring raceway, have the slit, be convenient to store lubricant oil or lubricating grease, help improving the lubricating condition of ball, thereby can improve the working life of bearing.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is the schematic representation of the sectional shape of ring raceway on the inside and outside circle of bearing for " V " shape;
1-bearing inner race among the figure; The 2-ball; The 3-bearing outer ring;
Embodiment
The ball bearing of 4 contacts described in the utility model comprises bearing inner race 1, ball 2 and bearing outer ring 3, ball 2 is arranged between bearing inner race 1 and the bearing outer ring 3, on bearing inner race 1 and bearing outer ring 3, be equipped with ring raceway, the sectional shape of the ring raceway on the described bearing inner race and the sectional shape of the ring raceway on the bearing outer ring are symmetrical, every raceway all has contact at 2 with each ball, and the angle β between the connecting line at two point of contact and ball center is that the arbitrary value in 30 °-120 ° all can, β is 90 ° in this example, the sectional shape of described ring raceway is two sections circular arcs that are symmetrical in the ball axis, and the pass between the radius R of this circular arc and the radius r of ball is R=2.1r.
Certainly, the sectional shape of described ring raceway also can be designed to one " V " type cross section tangent with described ball, is connected by arc transition in the bottom in " V " type cross section.
Claims (4)
1, a kind of ball bearing of 4 contacts, comprise bearing inner race (1), ball (2) and bearing outer ring (3), ball (2) is arranged between bearing inner race (1) and the bearing outer ring (3), on bearing inner race (1) and bearing outer ring (3), be equipped with ring raceway, it is characterized in that: the sectional shape of the ring raceway that described bearing inner race (1) and bearing outer ring (3) are provided with is symmetrical, described ball all has contact at 2 with every ring raceway, and the angle β between two point of contact and ball (2) line of centres is 30 °-120 °.
2, according to the ball bearing of described 4 contacts of claim 1, it is characterized in that: the sectional shape of described ring raceway is made up of two sections circular arcs that are symmetrical in ball (2) axis, the radius R of this circular arc is greater than the radius r of described ball, and described ball (2) and described two circular arcs are inscribe mutually.
3, according to the ball bearing of described 4 contacts of claim 1, it is characterized in that: the sectional shape of described ring raceway is " V " type tangent with described ball (2), is connected by arc transition in the bottom of " V " type.
4, according to the ball bearing of arbitrary described 4 contacts in the claim 1,2,3, it is characterized in that: described ball (2) is 60 °-90 ° with two point of contact of every ring raceway and the angle β of ball center connecting line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU022876871U CN2599307Y (en) | 2002-12-18 | 2002-12-18 | four-point contact ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU022876871U CN2599307Y (en) | 2002-12-18 | 2002-12-18 | four-point contact ball bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2599307Y true CN2599307Y (en) | 2004-01-14 |
Family
ID=34151081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU022876871U Expired - Fee Related CN2599307Y (en) | 2002-12-18 | 2002-12-18 | four-point contact ball bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2599307Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807294A (en) * | 2014-01-24 | 2014-05-21 | 浙江五洲新春集团股份有限公司 | Shaft-connecting bearing for seeder |
| CN106640559A (en) * | 2017-01-10 | 2017-05-10 | 河南科技大学 | Method and device for setting asymmetric angles of asymmetric double-row and four-point contact ball bearings |
-
2002
- 2002-12-18 CN CNU022876871U patent/CN2599307Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807294A (en) * | 2014-01-24 | 2014-05-21 | 浙江五洲新春集团股份有限公司 | Shaft-connecting bearing for seeder |
| CN103807294B (en) * | 2014-01-24 | 2016-05-18 | 浙江五洲新春集团股份有限公司 | A kind of seeder shaft connecting bearing |
| CN106640559A (en) * | 2017-01-10 | 2017-05-10 | 河南科技大学 | Method and device for setting asymmetric angles of asymmetric double-row and four-point contact ball bearings |
| CN106640559B (en) * | 2017-01-10 | 2019-01-08 | 河南科技大学 | The setting method and device of asymmetric double four-point contact ball asymmetry angle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |