CN201448357U - Dual-channel ball bearing of radiating fan - Google Patents
Dual-channel ball bearing of radiating fan Download PDFInfo
- Publication number
- CN201448357U CN201448357U CN2009200425398U CN200920042539U CN201448357U CN 201448357 U CN201448357 U CN 201448357U CN 2009200425398 U CN2009200425398 U CN 2009200425398U CN 200920042539 U CN200920042539 U CN 200920042539U CN 201448357 U CN201448357 U CN 201448357U
- Authority
- CN
- China
- Prior art keywords
- bearing
- ring
- ball
- steel ball
- inner ring
- 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 discloses a dual-channel ball bearing with a radiating fan, which comprises an internal ring, an external ring and a plurality of steel balls that are arranged between the internal ring and the external ring; the external wall of the internal wall and the internal wall of the external ring are provided with two channels that face to each other respectively; the groove formed by each channel is internally provided with the steel ball; the groove is also internally provided with a steel ball retainer; the steel balls are separated at equal distance by the retainer; and a dustproof cover is arranged between the internal ring and the external ring at two ends of the bearing. The dual-channel ball bearing has the beneficial effects that the two channels are arranged between the internal ring and the external ring of the bearing; furthermore, the steel balls are arranged in the two channels respectively; therefore, the existing two bearings are integrated on one bearing, the production efficiency is high, the manufacturing cost is low, the product quality is good and the service life is long.
Description
Technical field
The utility model relates to the two ditch ball bearings of a kind of radiation fan that uses in computer and the similar electronic instrument.
Background technique
At present, in computer and similar electronic instrument product, the ball bearing that radiation fan is used, two kinds of structural types are generally arranged: a kind of by coaxial assembling, abut against two single ditch ball bearing composite structures together mutually, have a raceway groove on the inside and outside wall of single ditch ball bearing bearing outer ring and inner ring for the rotation of steel ball ball, a circle ball that is evenly separated by retainer is housed in the raceway groove, this radiation fan bearing composite structure, radiation fan starting is light, stability of rotation, little, the long service life of noise, but the manufacture cost height; Another kind of by two coaxial assemblings, abut against mutually together, one is single ditch ball bearing, the copper bush of another for refueling, this radiation fan bearing composite structure, low cost of manufacture, but its working life is short, particularly in a single day the lubricant oil on the copper bush infiltrate in single ditch ball bearing, and single ditch ball bearing also can very fast damage.
Summary of the invention
For solving the deficiency that the used bearing of radiation fan exists in current computer and the similar electronic instrument product, the utility model provides a kind of radiation fan two ditch ball bearings, and its manufacture cost was both low, and working life is very long again.
The technological scheme that the utility model technical solution problem is adopted is: the two ditch ball bearings of a kind of radiation fan, comprise inner ring, outer ring and be arranged on inner ring and the outer ring between steel ball, be respectively arranged with two relative raceway grooves on the outer wall of described inner ring and on the inwall of outer ring, in the groove that every raceway groove that is oppositely arranged forms, be provided with described steel ball.
Also be provided with the steel ball retainer in described groove, described steel ball is separated by described retainer is equidistant.
Between the inner ring at described bearing two ends and outer ring, also be provided with dust cover.
The equal in length of described outer ring and inner ring.
The utility model bearing closes two single ditch ball bearings as a whole, makes the two ditch ball bearings of a radiation fan, with two radiation fan list ditch ball bearings of the two ditch ball bearings replacements of a radiation fan.Its bearing outer ring and inner ring by equal in length is formed, and on the outer surface of the internal surface of bearing outer ring and inner ring, has two corresponding raceway grooves in position; In every group of channel groove forming by inside and outside raceway groove, several steel ball balls are housed; With its equidistant separating, can only make circumference along every group of channel groove respectively and roll by two steel ball ball chain of the end-to-end of being made up of steel ball ball and retainer by retainer for each steel ball ball; The endoporus of bearing inner race and radiation fan rotating shaft match; Both ends of the surface at bearing outer ring and inner ring are equipped with dust cover respectively, are used to prevent that external dust from entering in the channel groove of bearing outer ring and inner ring composition.
The beneficial effects of the utility model are: the utility model is provided with two grooves between the inner ring of bearing and outer ring, and in two grooves, place steel ball respectively, thereby existing two bearings are integrated on the bearing manufacturing efficiency height, low cost of manufacture, good product quality, long service life.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the utility model longitudinal section tectonic maps.
1. bearing outer rings among the figure, 2. bearing inner race, 3. steel ball ball, 4. retainer, 5. dust cover.
Embodiment
As shown in the figure, the two ditch ball bearings of the utility model radiation fan, its bearing outer ring 1 and inner ring 2 by equal in length is formed, and on the outer surface of the internal surface of bearing outer ring 1 and inner ring 2, has two corresponding raceway grooves in position; In every group of channel groove forming by inside and outside raceway groove, several steel ball balls 3 are housed; With its equidistant separating, can only make circumference along every group of channel groove respectively and roll by two steel ball ball chain of the end-to-end of being made up of steel ball ball 3 and retainer 4 by retainer 4 for each steel ball ball 3; The endoporus of bearing inner race 2 and radiation fan rotating shaft match; Both ends of the surface at bearing outer ring 1 and inner ring 2 are equipped with dust cover 5 respectively, are used to prevent that external dust from entering in the channel groove of bearing outer ring 1 and inner ring 2 compositions.
Claims (4)
1. two ditch ball bearings of a radiation fan, comprise inner ring (2), outer ring (1) and be arranged on inner ring (2) and outer ring (1) between steel ball (3), it is characterized in that: on the inwall of on the outer wall of described inner ring (2) and outer ring (1), be respectively arranged with two relative raceway grooves, in the groove that every raceway groove that is oppositely arranged forms, be provided with described steel ball (3).
2. the two ditch ball bearings of radiation fan according to claim 1, it is characterized in that: also be provided with steel ball retainer (4) in described groove, described steel ball (3) is by equidistant separating of described retainer (4).
3. the two ditch ball bearings of radiation fan according to claim 1 and 2 is characterized in that: also be provided with dust cover (5) between the inner ring at described bearing two ends and outer ring.
4. the two ditch ball bearings of radiation fan according to claim 3 is characterized in that: the equal in length of described outer ring (1) and inner ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200425398U CN201448357U (en) | 2009-06-23 | 2009-06-23 | Dual-channel ball bearing of radiating fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200425398U CN201448357U (en) | 2009-06-23 | 2009-06-23 | Dual-channel ball bearing of radiating fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201448357U true CN201448357U (en) | 2010-05-05 |
Family
ID=42553073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200425398U Expired - Fee Related CN201448357U (en) | 2009-06-23 | 2009-06-23 | Dual-channel ball bearing of radiating fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201448357U (en) |
-
2009
- 2009-06-23 CN CN2009200425398U patent/CN201448357U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100505 Termination date: 20140623 |
|
| EXPY | Termination of patent right or utility model |