CN103089819A - Ultraspeed miniature bearing retainer and manufacturing method thereof - Google Patents
Ultraspeed miniature bearing retainer and manufacturing method thereof Download PDFInfo
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- CN103089819A CN103089819A CN201310019438XA CN201310019438A CN103089819A CN 103089819 A CN103089819 A CN 103089819A CN 201310019438X A CN201310019438X A CN 201310019438XA CN 201310019438 A CN201310019438 A CN 201310019438A CN 103089819 A CN103089819 A CN 103089819A
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- Prior art keywords
- retainer
- fore shaft
- ultraspeed
- bearing retainer
- miniature bearing
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- 238000004519 manufacturing process Methods 0.000 title abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000004381 surface treatment Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 13
- 150000001875 compounds Chemical class 0.000 claims description 6
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 6
- 238000005498 polishing Methods 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 abstract description 2
- 239000004962 Polyamide-imide Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 abstract 1
- 229920002312 polyamide-imide Polymers 0.000 abstract 1
- 229920001169 thermoplastic Polymers 0.000 abstract 1
- 239000004416 thermosoftening plastic Substances 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
The invention discloses an ultraspeed miniature bearing retainer and a manufacturing method thereof. The ultraspeed miniature bearing retainer comprises a ball bag and a fore shaft, and the ultraspeed miniature bearing retainer is characterized in that the fore shaft radially and outwardly extends with a pair of spacing bulges which are used for preventing steel balls from flying off and have a certain thickness; and the manufacturing method of the ultraspeed miniature bearing retainer comprises the following processing steps of bar material formation, surface treatment, ultrasonic washing and the like. Compared with the prior art, the ultraspeed miniature bearing retainer and the manufacturing method provided by the invention have the advantages that the stamping injection molding defect is overcome; a polyamide imide high-strength plastic is adopted, under the condition that the temperature at the ultrahigh rotation speed is 275 DEG C, the intensity and rigidity in thermoplastic are topmost, and the ultraspeed miniature bearing retainer has the strength requirement of the retainer; meanwhile, the fore shaft is provided with the spacing bulges which has a certain thickness and is capable of effectively preventing the steel ball from flying off; and compared with the common bearing, the speed ratio of a bearing of the ultraspeed miniature bearing retainer provided by the invention can be improved by 40 thousands revolution/ minute.
Description
Technical field
The present invention relates to a kind of ultra high speed miniature bearing retainer and manufacture method thereof.
Background technique
Bearing is machinery industry part commonly used, it basic composition is inside and outside lasso, steel ball and bearing cage, between inner ring and outer ring, bearing cage also between inner ring and outer ring, can distribute around the even circumferential of lasso to keep above-mentioned steel ball steel ball as rolling support spare.Conventional miniature bearing retainer comprises ball pocket and fore shaft at present, but the position-limiting action of fore shaft is limited, and when the rotating speed of bearing surpassed 420,000 rev/mins, steel ball will fly out from the ball pocket.
Summary of the invention
The problems referred to above that the present invention need to solve are for above-mentioned the deficiencies in the prior art, and a kind of ultra high speed miniature bearing retainer and manufacture method thereof are provided.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of ultra high speed miniature bearing retainer and manufacture method thereof, ultra high speed miniature bearing retainer comprises ball pocket and fore shaft, it is characterized in that: the radial direction at described fore shaft place along the ball pocket is outward extended with a pair of certain thickness spacing preiection that prevents that steel ball from flying out.
The height of described bearing cage is 1.55mm.
Width between described two spacing preiections equals the width of fore shaft.
The width of described fore shaft is 0.8mm.
The diameter of described ball pocket is 1.12mm.
The circumference of described ball pocket is 0.5mm to the beeline on bearing cage base.
A kind of making method of ultra high speed miniature bearing retainer is characterized in that, comprises following process step:
A, employing polyamidoimide material, bar becomes cylinder type;
B, bar cylindrical reconditioning to external diameter are 6.5mm;
C, roughing, with bar roughing, cylindrical stays 10 surpluses;
Retainer designing requirement boring is pressed in D, boring;
E, mill fore shaft and spacing preiection, mill fore shaft and spacing preiection with step type compound keys slotting cutter 8 sections of first-class minute of cylindricals;
F, mill the ball pocket, mill the ball pocket with step type compound keys slotting cutter first-class point 8 sections of cylindricals;
G, fine finishing are processed into retainer external diameter, internal diameter, highly are respectively 5.27mm, 4.15mm, 1.55mm;
H, surface treatment are carried out deburring, polishing treatment with retainer;
I, Ultrasonic Cleaning carry out Ultrasonic Cleaning with retainer.
Compared with prior art, the present invention has overcome the defective of punching press injection moulding, adopt the polyamidoimide highstrenghtpiston, the ultrahigh rotating speed temperature up to 275 ° of C conditions under its strength and stiffness the highest in thermoplasticity, the requirement of strength that has possessed retainer, the certain thickness spacing preiection of fore shaft place's setting simultaneously can effectively stop steel ball to fly out, use ten thousand rev/mins of the bearing rotary scooters to 46 of ultra high speed miniature bearing retainer of the present invention, improved 40,000 rev/mins than the bearing rotating speed that uses common miniature bearing retainer.
Description of drawings
Fig. 1 is the structural representation of ultra high speed miniature bearing retainer;
Wherein, 1, the ball pocket, 2, fore shaft, 3, spacing preiection.
Fig. 2 is the process flow diagram of ultra high speed miniature bearing retainer.
Embodiment
Describe the preferred technical solution of the present invention in detail below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of ultra high speed miniature bearing retainer comprises ball pocket 1 and fore shaft 2, and the radial direction at fore shaft 2 places along the ball pocket is outward extended with a pair of certain thickness spacing preiection 3 that prevents that steel ball from flying out.
The height of bearing cage is 1.55mm.
Width between two spacing preiections 3 equals the width of fore shaft 2, and spacing preiection 3 has strengthened limit function, prevents that steel ball from flying out.
The width of fore shaft 2 is 0.8mm.
The diameter of ball pocket 1 is 1.12mm.
The circumference of ball pocket 1 is 0.5mm to the beeline on bearing cage base.
As shown in Figure 2, a kind of manufacture method of ultra high speed miniature bearing retainer comprises following process step:
A, employing polyamidoimide material, bar becomes cylinder type;
B, bar cylindrical reconditioning to external diameter are 6.5mm;
C, roughing, with bar roughing, cylindrical stays 10 surpluses;
Retainer designing requirement boring is pressed in D, boring;
E, mill fore shaft and spacing preiection, mill fore shaft and spacing preiection with step type compound keys slotting cutter 8 sections of first-class minute of cylindricals;
F, mill the ball pocket, mill the ball pocket with step type compound keys slotting cutter first-class point 8 sections of cylindricals;
G, fine finishing are processed into retainer external diameter, internal diameter, highly are respectively 5.27mm, 4.15mm, 1.55mm;
H, surface treatment are carried out deburring, polishing treatment with retainer;
I, Ultrasonic Cleaning carry out Ultrasonic Cleaning with retainer.
Compare with existing processing technique, when milling ball pocket 1, by reducing ball pocket 1 center of circle to the distance on retainer base, incoming flow goes out the thickness of spacing preiection 3, this certain thickness spacing preiection 3 can effectively stop steel ball to fly out from ball pocket 1, thereby has improved 40,000 rev/mins than the rotating speed of 420,000 rev/mins of plain bearings.
Claims (7)
1. a ultra high speed miniature bearing retainer, comprise ball pocket (1) and fore shaft (2), it is characterized in that: locate to be outward extended with a pair of certain thickness spacing preiection (3) that prevents that steel ball from flying out along the radial direction of ball pocket at described fore shaft (2).
2. bearing according to claim 1 keeps, and it is characterized in that: the height of described bearing cage is 1.55mm.
3. bearing according to claim 1 keeps, and it is characterized in that: the width between described two spacing preiections (3) equals the width of fore shaft (2).
4. bearing according to claim 1 keeps, and it is characterized in that: the width of described fore shaft (2) is 0.8mm.
5. bearing according to claim 1 keeps, and it is characterized in that: the diameter of described ball pocket (1) is 1.12mm.
6. bearing according to claim 1 keeps, and it is characterized in that: the circumference of described ball pocket (1) is 0.5mm to the beeline on bearing cage base.
7. the making method of a ultra high speed miniature bearing retainer, is characterized in that, comprises following process step:
A, employing polyamidoimide material, bar becomes cylinder type;
B, bar cylindrical reconditioning to external diameter are 6.5mm;
C, roughing, with bar roughing, cylindrical stays 10 surpluses;
Retainer designing requirement boring is pressed in D, boring;
E, mill fore shaft and spacing preiection, mill fore shaft and spacing preiection with step type compound keys slotting cutter 8 sections of first-class minute of cylindricals;
F, mill the ball pocket, mill the ball pocket with step type compound keys slotting cutter first-class point 8 sections of cylindricals;
G, fine finishing are processed into retainer external diameter, internal diameter, highly are respectively 5.27mm, 4.15mm, 1.55mm;
H, surface treatment are carried out deburring, polishing treatment with retainer;
I, Ultrasonic Cleaning carry out Ultrasonic Cleaning with retainer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310019438.XA CN103089819B (en) | 2013-01-21 | 2013-01-21 | Manufacturing method of ultraspeed miniature bearing retainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310019438.XA CN103089819B (en) | 2013-01-21 | 2013-01-21 | Manufacturing method of ultraspeed miniature bearing retainer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103089819A true CN103089819A (en) | 2013-05-08 |
| CN103089819B CN103089819B (en) | 2015-07-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310019438.XA Active CN103089819B (en) | 2013-01-21 | 2013-01-21 | Manufacturing method of ultraspeed miniature bearing retainer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103089819B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0304872A2 (en) * | 1987-08-26 | 1989-03-01 | Koyo Seiko Co., Ltd. | Heat-resistant ball bearing |
| CN1149679A (en) * | 1995-10-27 | 1997-05-14 | 唐秉盛 | Ball bearing and its assembling method |
| CN201221566Y (en) * | 2008-06-26 | 2009-04-15 | 无锡华洋滚动轴承有限公司 | Combined type one-way bearing ball retainer |
| CN101484715A (en) * | 2006-07-04 | 2009-07-15 | 格布鲁德莱茵福特股份有限公司 | Rolling-bearing cage |
| CN102052395A (en) * | 2010-10-19 | 2011-05-11 | 上海斐赛轴承科技有限公司 | Rolling bearing taking carbon graphite or electrographite as integral holder and manufacturing method thereof |
-
2013
- 2013-01-21 CN CN201310019438.XA patent/CN103089819B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0304872A2 (en) * | 1987-08-26 | 1989-03-01 | Koyo Seiko Co., Ltd. | Heat-resistant ball bearing |
| CN1149679A (en) * | 1995-10-27 | 1997-05-14 | 唐秉盛 | Ball bearing and its assembling method |
| CN101484715A (en) * | 2006-07-04 | 2009-07-15 | 格布鲁德莱茵福特股份有限公司 | Rolling-bearing cage |
| CN201221566Y (en) * | 2008-06-26 | 2009-04-15 | 无锡华洋滚动轴承有限公司 | Combined type one-way bearing ball retainer |
| CN102052395A (en) * | 2010-10-19 | 2011-05-11 | 上海斐赛轴承科技有限公司 | Rolling bearing taking carbon graphite or electrographite as integral holder and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103089819B (en) | 2015-07-08 |
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