CN207848209U - Accurate angular contact ball bearing - Google Patents
Accurate angular contact ball bearing Download PDFInfo
- Publication number
- CN207848209U CN207848209U CN201820045796.6U CN201820045796U CN207848209U CN 207848209 U CN207848209 U CN 207848209U CN 201820045796 U CN201820045796 U CN 201820045796U CN 207848209 U CN207848209 U CN 207848209U
- Authority
- CN
- China
- Prior art keywords
- steel ball
- pocket hole
- ring
- wall
- retainer
- 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
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- Rolling Contact Bearings (AREA)
Abstract
The utility model is related to a kind of accurate angular contact ball bearings, including outer ring, inner ring, retainer and one group of steel ball, outer ring inner wall is equipped with outer rollaway nest, interior ring outer wall is equipped with interior rollaway nest, left part in outer ring is left rib, the right side of outer rollaway nest is equipped with slope, fore shaft is equipped between slope and outer rollaway nest, inner ring is radially inside equipped with two or three oil duct, the non-contact area of oil duct and interior rollaway nest penetrates through, the retainer is equipped with the pocket hole being equal with steel ball number, pocket hole is to be formed with rib in the middle part of the small throat structure in inside and outside big centre and pocket hole hole wall, steel ball contacts in active procedure with pocket hole line.The area that the throat structure in pocket hole enables steel ball to can contact with retainer is less, and therefore, steel ball is also less likely to occur to collide with retainer, reduces abrasion, extends bearing service life.
Description
Technical field
The utility model is related to field of bearings, and in particular to a kind of precision angular contact ball bearing.
Background technology
Bearing is a kind of on rotating mechanism, for supporting, reducing friction and bear the component of load.Bearing is divided into angle
Contact ball bearing, deep groove ball bearing, roller bearing etc..Single-row angular contact ball bearing, generally comprise outer ring, inner ring, retainer and
One group of steel ball is constituted.
It is frequently not fatigue rupture that high speed and precision angular contact bearing, which loses normal working performance, but due to steel ball and outside
Excessive abrasion between circle, inner ring and retainer leads to the reduction of bearing essence, and then influences accordingly to use the work of the equipment of the bearing
Make.It is general that oil duct is only set on the outer ring of bearing, inner ring in order to reduce abrasion, but this mode can only reduce steel ball with
Friction between the outer ring of bearing, inner ring, however the relationship analysis moved from retainer and steel ball, in the mistake of bearing high-speed rotation
Cheng Zhong, due to the viscous effect and centrifugation force effect of Bearing inner lubrication, steel ball drives lubricating grease rotation, and lubricating grease is by high speed
Centrifugal force is thrown outward from inner ring raceway, does not stop to hit retainer, and from the gap high speed of retainer and steel ball pass through, however by
In the viscous effect of lubricating grease, some greases can not pass through from the gap of retainer and steel ball, reduce the mobility of grease, from
And so that the grease in the gap of retainer and steel ball reduces even without grease, when operation allows for steel ball can be mutual with retainer
Abrasion, reduces the service life of bearing.
Utility model content
The purpose of this utility model is to provide a kind of accurate angular contact ball bearing, is mutually collided with retainer with solving steel ball
The technical issues of abrasion.
To achieve the above object, the utility model precision angular contact ball bearing adopts the following technical scheme that：Accurate angular contact
Ball bearing, including outer ring, inner ring, retainer and one group of steel ball, outer ring inner wall are equipped with outer rollaway nest, and interior ring outer wall is equipped with interior rolling
Road, the left part in outer ring are left rib, and the right side of outer rollaway nest is equipped with slope, and fore shaft is equipped between slope and outer rollaway nest, interior
Circle is radially inside equipped with two or three oil duct, and the non-contact area of oil duct and interior rollaway nest penetrates through, the retainer be equipped with
The equivalent pocket hole of steel ball number, pocket hole are to be formed with rib in the middle part of the small throat structure in inside and outside big centre and pocket hole hole wall, and steel ball exists
It is contacted with pocket hole line in active procedure, pocket hole hole wall has two upper hole wall, lower hole wall faces, the lower hole wall in pocket hole to be equipped with annular groove.
Further, the quantity in the pocket hole is 21.
Further, a diameter of 7.144mm of the steel ball.
Further, the contact angle of the angular contact ball bearing is 30 degree.
Further, the angle between the upper hole wall in the pocket hole and lower hole wall is 120 degree.
Further, the slope is equipped with grease storage groove, and grease storage groove is ring-shaped, is also embedded between the outer ring and inner ring
Sealing ring, outer ring inside are equipped with the sealing card slot for installing the sealing ring.
The beneficial effects of the utility model：Oil duct is radially set on inner ring, and grease can enter interior rolling by oil duct
Road, and the non-contact area of oil duct and interior rollaway nest penetrates through, and does not influence the normal rolling of steel ball.By the way that the pocket hole of retainer is set
It is set to inside and outside big intermediate small throat structure, and forms rib, two cone tanks up and down have been equivalent between steel ball and retainer,
When steel ball moves, grease is easier to be pressed against between retainer pocket hole rib and steel ball, and a small amount of grease can be stored in the ring in pocket hole
In slot, play the role of continuous lubrication.More it is essential that the structure in pocket hole enable the area that steel ball and retainer can contact compared with
Few, therefore, steel ball is also less likely to occur to collide with retainer, reduces abrasion, extends bearing service life.
Description of the drawings
Fig. 1 is the cross-sectional view of the embodiment of the utility model precision angular contact ball bearing；
Fig. 2 is the partial enlarged view of Fig. 1.
Corresponding title is respectively marked in figure：1, outer ring, 2, steel ball, 3, inner ring, 4, retainer, 5, grease storage groove, 6, oil duct, 7,
Seal card slot, 41, upper hole wall, 42, lower hole wall.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, the every other embodiment that those of ordinary skill in the art are obtained all belongs to
In the range of the utility model protection.
The embodiment of the utility model precision angular contact ball bearing：As Figure 1-Figure 2, including outer ring 1, inner ring 3, keep
Frame 4 and one group of steel ball 2.Retainer 4 is outer guiding, and retainer 4 is equipped with the pocket hole being equal with steel ball number, and the quantity in pocket hole is
21.A diameter of 7.144mm of steel ball 2.1 inner wall of outer ring is equipped with outer rollaway nest, and 3 outer wall of inner ring is equipped with interior rollaway nest, in outer ring 1
Left part be left rib, the right side of outer rollaway nest is equipped with slope, and fore shaft is equipped between slope and outer rollaway nest.Angular contact ball bearing
Contact angle be 30 degree.
Inner ring is radially inside equipped with three oil ducts 6, can also set two, each oil duct is spaced apart.Profit can be injected in oil duct 6
Consistent lubricant.The non-contact area of oil duct 6 and interior rollaway nest penetrates through, with prevent from influencing the rolling of steel ball, relief area namely steel ball with it is interior
The discontiguous part of raceway.Pocket hole is to be formed with rib in the middle part of the small throat structure in inside and outside big centre and pocket hole hole wall, and steel ball 2 is in work
It is contacted with pocket hole line during dynamic.Pocket hole hole wall has two upper hole wall, lower hole wall faces, and two wall surface of the hole are all inclined-planes, and pocket hole
Angle between upper hole wall 41 and lower hole wall 42 is 120 degree, and two wall surface of the hole form rib, pyramidal structure；It presss from both sides in other embodiments
It angle also can be 110 degree or 130 degree.Further, the lower hole wall in pocket hole is equipped with annular groove.
Slope is equipped with grease storage groove 5, and grease storage groove 5 is ring-shaped, and is also embedded with sealing ring between outer ring 1 and inner ring 3, in outer ring
Side is equipped with the sealing card slot 7 for installing the sealing ring.
By the way that the pocket hole of retainer to be arranged to the structure of internal necking, and rib is formed, in this case, grease can pass through
Oil duct enters interior rollaway nest, two cone tanks up and down has been equivalent between steel ball and retainer, grease is more when steel ball moves
It is easy to be pressed against between retainer pocket hole rib and steel ball, a small amount of grease can be stored in the annular groove in pocket hole, play lubricating action.
More it is essential that the structure in the pocket hole area that enables steel ball and retainer can contact is less, therefore, also it is less likely to occur to touch
It hits.Further, grease storage groove is opened up on the inner wall of outer ring, more greases can be stored, improve bearing service life, extend bearing
Maintenance period.
Claims (6)
1. accurate angular contact ball bearing, it is characterised in that：Including outer ring, inner ring, retainer and one group of steel ball, set on the inner wall of outer ring
There are outer rollaway nest, interior ring outer wall to be equipped with interior rollaway nest, the left part in outer ring is left rib, and the right side of outer rollaway nest is equipped with slope,
Be equipped with fore shaft between slope and outer rollaway nest, inner ring is radially inside equipped with two or three oil duct, oil duct and interior rollaway nest it is non-contact
Region penetrates through, and the retainer is equipped with the pocket hole that is equal with steel ball number, pocket hole be the small throat structure in inside and outside big centre and
It is formed with rib in the middle part of the hole wall of pocket hole, steel ball contacts in active procedure with pocket hole line, and pocket hole hole wall has upper hole wall, lower hole wall two
The lower hole wall in face, pocket hole is equipped with annular groove.
2. precision angular contact ball bearing according to claim 1, it is characterised in that：The quantity in the pocket hole is 21.
3. precision angular contact ball bearing according to claim 1, it is characterised in that：A diameter of 7.144mm of the steel ball.
4. precision angular contact ball bearing according to claim 1, it is characterised in that：The contact angle of the angular contact ball bearing
It is 30 degree.
5. precision angular contact ball bearing according to any one of claims 1 to 4, it is characterised in that：The upper hole in the pocket hole
Angle between wall and lower hole wall is 120 degree.
6. precision angular contact ball bearing according to any one of claims 1 to 4, it is characterised in that：The slope is equipped with
Grease storage groove, grease storage groove are ring-shaped, and sealing ring is also embedded between the outer ring and inner ring, are equipped on the inside of outer ring described for installing
The sealing card slot of sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820045796.6U CN207848209U (en) | 2018-01-11 | 2018-01-11 | Accurate angular contact ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820045796.6U CN207848209U (en) | 2018-01-11 | 2018-01-11 | Accurate angular contact ball bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207848209U true CN207848209U (en) | 2018-09-11 |
Family
ID=63418083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820045796.6U Expired - Fee Related CN207848209U (en) | 2018-01-11 | 2018-01-11 | Accurate angular contact ball bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207848209U (en) |
-
2018
- 2018-01-11 CN CN201820045796.6U patent/CN207848209U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180911 Termination date: 20200111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |