CN103089823A - High-speed anti-skidding micro bearing specially for dental department and manufacturing method of bearing - Google Patents
High-speed anti-skidding micro bearing specially for dental department and manufacturing method of bearing Download PDFInfo
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- CN103089823A CN103089823A CN2013100320151A CN201310032015A CN103089823A CN 103089823 A CN103089823 A CN 103089823A CN 2013100320151 A CN2013100320151 A CN 2013100320151A CN 201310032015 A CN201310032015 A CN 201310032015A CN 103089823 A CN103089823 A CN 103089823A
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- bearing
- skidding
- outer ring
- speed
- dentistry
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Abstract
The invention discloses a high-speed anti-skidding micro bearing specially for a dental department and a manufacturing method of the bearing. The high-speed anti-skidding micro bearing specially for the dental department comprises an outer ring, an inner ring, a retainer and a rolling body, wherein anti-skidding concave points which are obtained through sand blasting are arranged on the outer surface of the outer ring; the manufacturing method of the high-speed anti-skidding micro bearing specially for the dental department comprises the steps of: sand blasting, roughening, ultrasonic cleaning and the like. Compared with the prior art, the high-speed anti-skidding micro bearing specially for the dental department overcomes the disadvantage that the intensity of the micro-bearing outer ring specially for the dental department is affected by the adoption of a stop groove for the anti-skidding treatment, and is anti-skidding, wear-resisting and high in density as the sand blasting anti-skidding treatment is performed on the outer surface of the outer ring.
Description
Technical field
The invention belongs to miniature bearing and make the field, relate in particular to the anti-skidding miniature bearing of a kind of dentistry specialized high-speed and manufacture method thereof.
Background technique
Dental drill bearings is gear division dentist special bearing, and it requires miniature bearing to have excellent abrasive resistance, high strength, skid resistance.Present miniature anti skid bearing, usually adopt on the bearing outer ring surface and establish locking groove, the degree of depth of locking groove is 0.36mm, reach anti-skidding effect with this, but the miniature bearing of dentistry special use, because the outer ring very thin thickness, be 0.8mm, and the thickness of the thinnest part that the outer ring contacts with rolling element only is 0.615mm, adopts locking groove can have a strong impact on outer ring intensity, makes the intensity of bearing outer ring drop to 350-400N.
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 the anti-skidding miniature bearing of a kind of dentistry specialized high-speed and manufacture method are provided.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
The anti-skidding miniature bearing of a kind of dentistry specialized high-speed comprises outer ring, inner ring, retainer and rolling element, it is characterized in that: be provided with the concave point with anti-skidding effect that obtains by sand blast on the outer surface of described outer ring.
The degree of depth of described concave point recess is the 2-2.5 micron.
The anti-skidding miniature bearing width of described dentistry specialized high-speed is 2.38mm, and the external diameter of outer ring is 6.35mm, and the internal diameter of inner ring is 3.175mm, the rolling element diameter of the steel ball is 1mm, the center-diameter of bearing is 4.69mm, and the thickness of outer ring is 0.84mm, and the thinnest part of outer ring and rolling element contacting point is 0.615mm.
The manufacture method of the anti-skidding miniature bearing of a kind of dentistry specialized high-speed is characterized in that, comprises following process step:
A, rigid bearing are clipped in several bearing outer ring strings in the fixture of rigid bearing together, bearing outer ring are formed cylindric;
B, swivel bearing drive fixture with drive unit and do 360 degree rotations with the speed of 200-300 rev/min, drive simultaneously fixture and swing;
C, anti-skidding processing, sandblasting machine be with the air pressure of 0.4-0.8Mpa, adopts that between ten to two No. ten, irregular sand grains carries out the spray sand type hacking to the surface, outer ring of bearing, makes the surface, outer ring form the concave point of 2-2.5 micrometer depth and the burr of concave point periphery;
D, Ultrasonic Cleaning.
Compared with prior art, the anti-skidding processing of sandblast that the anti-skidding miniature bearing of dentistry specialized high-speed of the present invention carries out on the outer surface of outer ring, overcome the defective that adopts the anti-skidding processing of locking groove to affect the miniature bearing outer ring intensity of dentistry special use, the outer ring intensity that adopts locking groove to process drops to 350-400N, be 600-700N and adopt the intensity of the outer ring of the anti-skidding processing of sandblast, intensity has improved greatly, and adopt the outer ring frictional force of sand blast to have improved 0.7N, obtained the anti-skidding miniature bearing of high speed of not only anti-skidding not only wear-resisting but also high-intensity dentistry special use.
Description of drawings
Fig. 1 is the surface structure schematic diagram of the anti-skidding miniature bearing of dentistry specialized high-speed outer ring;
Wherein, 1, the outer ring, 2, concave point.
Fig. 2 is the structural representation of the anti-skidding miniature bearing of dentistry specialized high-speed;
Wherein, 3, inner ring, 4, rolling element.
Fig. 3 is the processing process figure of the anti-skidding miniature bearing of dentistry specialized high-speed.
Embodiment
Describe the preferred technical solution of the present invention in detail below in conjunction with accompanying drawing.
As illustrated in fig. 1 and 2, the anti-skidding miniature bearing of a kind of dentistry specialized high-speed comprises outer ring 1, inner ring 3, retainer and rolling element 4, is provided with the concave point with anti-skidding effect 2 that obtains by sand blast on the outer surface of outer ring 1.
The degree of depth of concave point 2 recesses is the 2-2.5 micron.
As shown in Figure 2, the anti-skidding miniature bearing width of dentistry specialized high-speed is 2.38mm, the external diameter of outer ring 1 is 6.35mm, the internal diameter of inner ring 3 is 3.175mm, rolling element 4 diameter of the steel ball are 1mm, the center-diameter of bearing is 4.69mm, and the thickness of outer ring 1 is 0.84mm, and outer ring 1 is 0.615mm with the thinnest part of rolling element 4 contacting points.
As shown in Figure 3, the manufacture method of the anti-skidding miniature bearing of a kind of dentistry specialized high-speed comprises following process step:
A, rigid bearing are clipped in several bearing outer ring strings in the fixture of rigid bearing together, bearing outer ring are formed cylindric, are convenient to anti-skidding processing is carried out in the outer ring, reach simultaneously to prevent injury outer ring inwall when anti-skidding processing;
B, swivel bearing drive fixture with drive unit and do 360 degree rotations with the speed of 200-300 rev/min, drive simultaneously fixture and swing, and are convenient to process equably the surface of outer ring;
C, anti-skidding processing, sandblasting machine is with the air pressure of 0.4-0.8Mpa, adopt that between ten to two No. ten, irregular sand grains carries out the spray sand type hacking to the surface, outer ring of bearing, make the surface, outer ring form the concave point of 2-2.5 micrometer depth and the burr of concave point periphery, reached the effect that increases frictional force;
D, Ultrasonic Cleaning.
Claims (4)
1. anti-skidding miniature bearing of dentistry specialized high-speed, comprise outer ring (1), inner ring (3), retainer and rolling element (4), it is characterized in that: be provided with the concave point with anti-skidding effect (2) that obtains by sand blast on the outer surface of described outer ring (1).
2. the anti-skidding miniature bearing of dentistry specialized high-speed according to claim 1, it is characterized in that: the degree of depth of described concave point (2) recess is the 2-2.5 micron.
3. the anti-skidding miniature bearing of dentistry specialized high-speed according to claim 1, it is characterized in that: the anti-skidding miniature bearing width of described dentistry specialized high-speed is 2.38mm, the external diameter of outer ring (1) is 6.35mm, the internal diameter of inner ring (3) is 3.175mm, rolling element (4) diameter of the steel ball is 1mm, the center-diameter of bearing is 4.69mm, and the thickness of outer ring (1) is 0.84mm, and outer ring (1) is 0.615mm with the thinnest part of rolling element contacting point.
4. the manufacture method of the anti-skidding miniature bearing of dentistry specialized high-speed, is characterized in that, comprises following process step:
A, rigid bearing are clipped in several bearing outer ring strings in the fixture of rigid bearing together, bearing outer ring are formed cylindric;
B, swivel bearing drive fixture with drive unit and do 360 degree rotations with the speed of 200-300 rev/min, drive simultaneously fixture and swing;
C, anti-skidding processing, sandblasting machine be with the air pressure of 0.4-0.8Mpa, adopts that between ten to two No. ten, irregular sand grains carries out the spray sand type hacking to the surface, outer ring of bearing, makes the surface, outer ring form the concave point of 2-2.5 micrometer depth and the burr of concave point periphery;
D, Ultrasonic Cleaning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100320151A CN103089823A (en) | 2013-01-29 | 2013-01-29 | High-speed anti-skidding micro bearing specially for dental department and manufacturing method of bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100320151A CN103089823A (en) | 2013-01-29 | 2013-01-29 | High-speed anti-skidding micro bearing specially for dental department and manufacturing method of bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103089823A true CN103089823A (en) | 2013-05-08 |
Family
ID=48202796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100320151A Withdrawn CN103089823A (en) | 2013-01-29 | 2013-01-29 | High-speed anti-skidding micro bearing specially for dental department and manufacturing method of bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103089823A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5718568A (en) * | 1992-04-24 | 1998-02-17 | Debiotech S.A. | Drive shaft for a peristaltic pump |
| JP2006129934A (en) * | 2004-11-02 | 2006-05-25 | Nsk Ltd | Roller bearing |
| CN202628791U (en) * | 2012-05-22 | 2012-12-26 | 上海天安轴承有限公司 | Dental drill bearing |
-
2013
- 2013-01-29 CN CN2013100320151A patent/CN103089823A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5718568A (en) * | 1992-04-24 | 1998-02-17 | Debiotech S.A. | Drive shaft for a peristaltic pump |
| JP2006129934A (en) * | 2004-11-02 | 2006-05-25 | Nsk Ltd | Roller bearing |
| CN202628791U (en) * | 2012-05-22 | 2012-12-26 | 上海天安轴承有限公司 | Dental drill bearing |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20130508 |