CN210397436U - Full ball miniature bearing - Google Patents
Full ball miniature bearing Download PDFInfo
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- CN210397436U CN210397436U CN201920978823.XU CN201920978823U CN210397436U CN 210397436 U CN210397436 U CN 210397436U CN 201920978823 U CN201920978823 U CN 201920978823U CN 210397436 U CN210397436 U CN 210397436U
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Abstract
A full-ball miniature bearing comprises an inner ring, an outer ring and a plurality of steel balls arranged between the inner ring and the outer ring, wherein a circle of arc-shaped channel is processed on the inner side surface of the outer ring; a circle of arc-shaped bearing surface is processed on the outer side surface of the inner ring; the steel ball is arranged between the arc-shaped channel and the arc-shaped bearing surface and adopts a full-channel ball structure; a shoulder is integrally connected to the outer side surface of the inner ring; one side of the steel ball is arranged between the retaining shoulder and the arc-shaped bearing surface; and the surfaces of the inner ring, the outer ring and the steel ball are subjected to heat treatment. Compared with the prior art, the full ball miniature bearing adopts a full groove ball structure, in order to prevent the steel ball from running out in the bearing operation process, the inner ring is additionally provided with a retaining shoulder, and the inner ring and the outer ring are both subjected to heat treatment during processing; the miniature bearing of the structure does not need to use a retainer, has reasonable design and good stability, and has the advantages of long service life and large load.
Description
Technical Field
The utility model relates to a bearing technical field specifically indicates a full ball miniature bearing.
Background
The bearing is an important part in the modern mechanical equipment, and has the main functions of supporting the mechanical rotating body, reducing the friction coefficient in the movement process of the mechanical rotating body and ensuring the rotation precision of the mechanical rotating body; at present, due to some equipment reasons, the wall thickness of an inner ring of a bearing is required to be small, so that a retainer cannot be installed between the inner ring and an outer ring.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to above-mentioned prior art not enough, and provide a full ball miniature bearing.
In order to solve the technical problem, the utility model discloses a technical scheme is:
a full-ball miniature bearing comprises an inner ring, an outer ring and a plurality of steel balls arranged between the inner ring and the outer ring, wherein a circle of arc-shaped channel is processed on the inner side surface of the outer ring; a circle of arc-shaped bearing surface is processed on the outer side surface of the inner ring; the steel ball is arranged between the arc-shaped channel and the arc-shaped bearing surface and adopts a full-channel ball structure; a shoulder is integrally connected to the outer side surface of the inner ring; one side of the steel ball is arranged between the retaining shoulder and the arc-shaped bearing surface; and the surfaces of the inner ring, the outer ring and the steel ball are subjected to heat treatment.
Wherein the surface hardness of the inner ring is 55-57 HRC.
Wherein the outer ring surface hardness is 58 HRC or more.
Wherein the surface hardness of the steel ball is above 58 HRC.
Wherein, the surface roughness of arc channel and arc loading face is Ra and is not more than 0.8 um.
Furthermore, the outer side surface of the inner ring and the inner side surface of the outer ring are divided into a left side oil injection passage and a right side oil injection passage through steel balls.
Compared with the prior art, the full ball miniature bearing adopts a full groove ball structure, in order to prevent the steel ball from running out in the bearing operation process, the inner ring is additionally provided with a retaining shoulder, and the inner ring and the outer ring are both subjected to heat treatment during processing; the miniature bearing of the structure does not need to use a retainer, has reasonable design and good stability, and has the advantages of long service life and large load.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
the oil injection device comprises a bearing seat, an oil injection passage, a bearing seat, an oil injection passage and a bearing seat, wherein the bearing seat comprises an inner ring 1, an outer ring 2, an outer ring 3, a steel ball 4, an arc-shaped channel 5, an arc-shaped bearing surface 6, a retaining.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1, a full-ball miniature bearing comprises an inner ring 1, an outer ring 2 and a plurality of steel balls 3 arranged between the inner ring 1 and the outer ring 2, wherein a circle of arc-shaped channel 4 is processed on the inner side surface of the outer ring 2; a circle of arc-shaped bearing surface 5 is processed on the outer side surface of the inner ring 1; the steel ball 3 is arranged between the arc-shaped channel 4 and the arc-shaped bearing surface 5, and the steel ball 3 adopts a full-channel ball structure; a shoulder 6 is integrally connected on the outer side surface of the inner ring 1; one side of the steel ball 3 is arranged between the shoulder 6 and the arc bearing surface 5; divide into left side oil injection duct 7 and right side oil injection duct 8 through steel ball 3 between 1 lateral surface of inner circle and 2 medial surfaces of outer lane, all inject lubricating grease in left side oil injection duct 7 and the right side oil injection duct 8 for improve steel ball 3 degree of lubrication, reduce frictional force, the oil injection duct 7 of left side and the 8 outsides of right side oil injection duct are sealed through adding the shield.
In the embodiment, the surfaces of the inner ring 1, the outer ring 2 and the steel ball 3 are subjected to heat treatment, and the wear resistance of the inner ring 1, the outer ring 2 and the steel ball 3 is improved through the heat treatment; the surface hardness of the inner ring is 55-57 HRC; the surface hardness of the outer ring is above 58 HRC; the surface hardness of the steel ball is above 58 HRC.
In this embodiment, in order to reduce the friction force of the steel ball 3, the surface roughness of the arc-shaped channel 4 and the arc-shaped bearing surface 5 is Ra less than or equal to 0.8 um.
The present invention is not limited to the above-described embodiments, and those skilled in the art can make modifications or changes without departing from the spirit of the present invention.
Claims (6)
1. The utility model provides a full ball miniature bearing, includes the inner circle, the outer lane with set up a plurality of steel balls between inner circle and outer lane, its characterized in that: a circle of arc-shaped channel is processed on the inner side surface of the outer ring; a circle of arc-shaped bearing surface is processed on the outer side surface of the inner ring; the steel ball is arranged between the arc-shaped channel and the arc-shaped bearing surface and adopts a full-channel ball structure; a shoulder is integrally connected to the outer side surface of the inner ring; one side of the steel ball is arranged between the retaining shoulder and the arc-shaped bearing surface; and the surfaces of the inner ring, the outer ring and the steel ball are subjected to heat treatment.
2. A full ball micro-bearing according to claim 1, wherein: the surface hardness of the inner ring is 55-57 HRC.
3. A full ball micro-bearing according to claim 1, wherein: the surface hardness of the outer ring is above 58 HRC.
4. A full ball micro-bearing according to claim 1, wherein: the surface hardness of the steel ball is above 58 HRC.
5. A full ball micro-bearing according to claim 1, wherein: the surface roughness of the arc-shaped channel and the arc-shaped bearing surface is Ra less than or equal to 0.8 um.
6. A full ball micro-bearing according to claim 1, wherein: and the outer side surface of the inner ring and the inner side surface of the outer ring are divided into a left side oil injection passage and a right side oil injection passage through steel balls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920978823.XU CN210397436U (en) | 2019-06-27 | 2019-06-27 | Full ball miniature bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920978823.XU CN210397436U (en) | 2019-06-27 | 2019-06-27 | Full ball miniature bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210397436U true CN210397436U (en) | 2020-04-24 |
Family
ID=70351178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920978823.XU Active CN210397436U (en) | 2019-06-27 | 2019-06-27 | Full ball miniature bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210397436U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145538A (en) * | 2019-06-27 | 2019-08-20 | 南通山口精工机电有限公司 | A kind of full ball miniature bearing |
-
2019
- 2019-06-27 CN CN201920978823.XU patent/CN210397436U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145538A (en) * | 2019-06-27 | 2019-08-20 | 南通山口精工机电有限公司 | A kind of full ball miniature bearing |
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