CN110752699A - Motor shaft seat - Google Patents
Motor shaft seat Download PDFInfo
- Publication number
- CN110752699A CN110752699A CN201810855636.2A CN201810855636A CN110752699A CN 110752699 A CN110752699 A CN 110752699A CN 201810855636 A CN201810855636 A CN 201810855636A CN 110752699 A CN110752699 A CN 110752699A
- Authority
- CN
- China
- Prior art keywords
- bearing
- spacer
- recess
- motor shaft
- wall surface
- 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.)
- Pending
Links
- 125000006850 spacer group Chemical group 0.000 claims abstract description 66
- 230000000994 depressogenic effect Effects 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 12
- 230000004308 accommodation Effects 0.000 description 8
- 239000003292 glue Substances 0.000 description 8
- 230000002159 abnormal effect Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000007790 scraping Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
A motor shaft seat is used for solving the problem of poor rotation stability of the existing motor and comprises: a shaft tube; and an intraductal subassembly of central siphon, this intraductal subassembly of central siphon is located in this central siphon, and this intraductal subassembly of central siphon has a spacer that is located between a first bearing and a second bearing, and a first depressed part and a second depressed part are connected respectively to two axial end faces of this spacer, forms a first appearance room between the internal face of this first depressed part and this central siphon, forms a second appearance room between the internal face of this second depressed part and this central siphon.
Description
Technical Field
The invention relates to a motor part, in particular to a motor shaft seat.
Background
Referring to fig. 1, a conventional motor shaft seat 9 is shown, wherein the conventional motor shaft seat 9 has a hollow shaft tube 91, a first bearing 92, a second bearing 93 and a spacer 94. The hollow shaft tube 91 has a first end 91a and a second end 91 b; the first bearing 92 and the second bearing 93 are disposed in the hollow shaft tube 91; the spacer 94 is located between the first bearing 92 and the second bearing 93, and upper and lower surfaces of the spacer 94 abut against the first bearing 92 and the second bearing 93, respectively. Therefore, the spacer 94 can keep the first bearing 92 and the second bearing 93 at a fixed distance, and prevent the first bearing 92 and the second bearing 93 from being displaced. An embodiment similar to the conventional motor shaft seat 9 is disclosed in taiwan patent No. 348910 entitled "motor bearing ring improvement device".
In the conventional motor shaft seat 9, the first bearing 92 is disposed in the hollow shaft tube 91 through the first end 91a of the hollow shaft tube 91, and the second bearing 93 is disposed in the hollow shaft tube 91 through the second end 91b of the hollow shaft tube 91. However, since the first bearing 92 and the second bearing 93 are tightly fitted or glued to the inner wall of the hollow shaft tube 91, the first bearing 92 and the second bearing 93 are prone to generate shavings due to friction and scraping with the inner wall of the hollow shaft tube 91 or generate residual glue due to glue overflow during the assembly process; after the first bearing 92 and the second bearing 93 operate for a period of time, the shavings or the residual rubber easily run into the first bearing 92 and the second bearing 93, so that the first bearing 92 and the second bearing 93 operate unsmoothly to cause abnormal noise, and serious people can also cause the balls of the first bearing 92 and the balls of the second bearing 93 to scratch, thereby affecting the performance and the service life of the motor.
In view of the above, there is still a need for an improved motor shaft seat.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a motor shaft seat, in which shavings or residual gum can be stored between a spacer and an inner wall surface of a shaft tube, so as to prevent the shavings or residual gum from entering a first bearing and a second bearing.
The motor shaft seat of the invention comprises: a shaft tube; and an intraductal subassembly of central siphon, this intraductal subassembly of central siphon is located in this central siphon, and this intraductal subassembly of central siphon has a spacer that is located between a first bearing and a second bearing, and a first depressed part and a second depressed part are connected respectively to two axial end faces of this spacer, forms a first appearance room between the internal face of this first depressed part and this central siphon, forms a second appearance room between the internal face of this second depressed part and this central siphon.
Accordingly, the motor shaft seat of the present invention utilizes the first containing chamber formed between the first depressed part of the spacer and the inner wall surface of the shaft tube, and the second containing chamber formed between the second depressed part of the spacer and the inner wall surface of the shaft tube; therefore, when the first bearing and the second bearing are installed, scraps generated by friction and scraping of the inner wall surfaces of the first bearing, the second bearing and the shaft tube or residual glue generated by glue overflow can be respectively stored in the first accommodating chamber and the second accommodating chamber along with the installation paths of the first bearing and the second bearing, so that the scraps or the residual glue cannot run into the first bearing and the second bearing, and abnormal sound caused by unsmooth operation of the first bearing and the second bearing is avoided. Therefore, when the motor shaft seat is combined with a motor rotor for use, a rotating shaft of the motor rotor can maintain good rotation smoothness, and the motor shaft seat has the technical effects of improving the running efficiency of the motor, prolonging the service life and the like.
The spacer has an outer wall surface connected with the shaft tube, the outer wall surface abuts against the inner wall surface of the shaft tube, and the first recess and the second recess are respectively connected with the outer wall surface. Therefore, the technical effect of ensuring that the shavings can be stored in the first accommodating chamber and the second accommodating chamber is achieved.
Wherein, the first depressed part and the second depressed part form an inclined plane respectively. Therefore, the structure is simple and convenient to manufacture, and the technical effect of reducing the manufacturing cost is achieved.
Wherein, a first included angle is formed between the first sunken part and an outer wall surface of the spacer, and the first included angle is 2-45 degrees. In this way, the spacer can be ensured to abut against the outer ring of the first bearing.
Wherein, a second included angle is formed between the second sunken part and an outer wall surface of the spacer, and the second included angle is 2-45 degrees. In this way, the spacer can be ensured to abut against the outer ring of the second bearing.
Wherein, the first sunken part and the second sunken part respectively form an arc surface. Thus, the spacer has the technical effect of being easily assembled on the shaft tube.
The spacer forms a first shoulder and a second shoulder by using the difference of the outer diameters, the first shoulder forms the first recess, and the second shoulder forms the second recess. Thus, the spacer has the technical effect of being easily assembled on the shaft tube.
Wherein the axial height of the first recess and the axial height of the second recess are both less than or equal to 1/5 of the spacer height. Thus, the outer wall surface of the spacer has a sufficient area to abut against the inner wall surface of the shaft tube.
Wherein the height of the spacer is less than or equal to 1/3 and greater than or equal to the first bearing height and the second bearing height. Therefore, the spacer, the first bearing and the second bearing have the technical effect of better spatial configuration.
Wherein the inner wall of the spacer is between the inner ring and the outer ring of the first bearing and between the inner ring and the outer ring of the second bearing. Thus, the technical effect of preventing the spacer from abutting against the inner ring of the first bearing and the inner ring of the second bearing is achieved.
Wherein, the axle tube is made of metal. Therefore, the technical effect of improving the structural strength of the shaft tube is achieved.
Wherein, the motor shaft seat also comprises a bottom plate connected with the shaft tube. Therefore, the bottom plate has the technical effect of stably positioning the shaft tube.
Drawings
Fig. 1 is a sectional view of a conventional motor shaft seat.
Fig. 2 is an exploded perspective view of the first embodiment of the present invention in combination with a base plate.
Fig. 3 is a sectional view of the first embodiment of the present invention combined with a stator and a rotor.
Fig. 4 is a partially enlarged sectional view taken along a of fig. 3.
Fig. 5 is a partially enlarged sectional view taken along fig. 3.
Fig. 6 is a partially enlarged sectional view of a second embodiment of the present invention.
Fig. 7 is a partially enlarged sectional view of a third embodiment of the present invention.
Description of the reference numerals
[ the invention ]
1 axle tube
1a first open end 1b second open end
11 inner wall surface
2 axle tube built-in assembly
21 first bearing 21a inner ring
21b outer ring 22 second bearing
22a inner ring 22b outer ring
23 spacer 231 axial end face
232 first recess 232a inclined plane
233 second recess 233a slope
234 outer wall surface
B bottom board B1 axle tube base
C-shaped rotating shaft
Inner wall of D spacer
Height of H spacer
L height of axle tube
Height of first bearing F1F 2 height of second bearing
S1 first compartment S2 second compartment
h1 axial height of first recess h2 axial height of second recess
[ Prior Art ]
9 motor shaft seat
91 first end of hollow shaft tube 91a
91b second end 92 first bearing
93 second bearing 94 spacer.
Detailed Description
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below:
the following directional terms or their similar terms, such as "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "side", etc., refer to the directions of the drawings, and are used only for the purpose of describing and understanding the embodiments of the present invention, and are not intended to limit the present invention.
Referring to fig. 2, a first embodiment of the motor shaft seat of the present invention includes a shaft tube 1 and a shaft tube assembly 2, wherein the shaft tube assembly 2 is disposed in the shaft tube 1.
The shaft tube 1 is hollow, the shaft tube 1 can have a first opening end 1a and a second opening end 1B, the shaft tube 1 can be connected to a bottom plate B through the first opening end 1a, the bottom plate B can be convexly provided with a shaft tube seat B1, and the shaft tube 1 is combined with the shaft tube seat B1 of the bottom plate B; wherein, the bottom plate B and the shaft tube 1 can be combined by integral injection molding of plastic materials; in this embodiment, the shaft tube 1 is made of metal so as to be capable of being combined with the bottom plate B in a detachable manner, and the structural strength of the shaft tube 1 is improved. Furthermore, the shaft tube 1 has an inner wall surface 11.
Referring to fig. 2 and 3, the axle tube assembly 2 has a first bearing 21, a second bearing 22 and a spacer 23, wherein the spacer 23 is located between the first bearing 21 and the second bearing 22. The first bearing 21 and the second bearing 22 are ball bearings; the first bearing 21 may have an inner ring 21a and an outer ring 21b, and the second bearing 22 may have an inner ring 22a and an outer ring 22 b. The inner ring 21a of the first bearing 21 and the inner ring 22a of the second bearing 22 are sleeved on a rotating shaft C of a motor rotor, and the outer ring 21b of the first bearing 21 and the outer ring 22b of the second bearing 22 are tightly fitted on the inner wall surface 11 of the shaft tube 1.
Referring to fig. 3 and 4, the spacer 23 has two axial end surfaces 231, and the two axial end surfaces 231 face the first bearing 21 and the second bearing 22, respectively. The spacer 23 has a first recess 232 and a second recess 233, and the first recess 232 and the second recess 233 are respectively connected to the two axial end faces 231; a first accommodation chamber S1 is formed between the first recess 232 and the inner wall surface 11 of the shaft tube 1, and a second accommodation chamber S2 is formed between the second recess 233 and the inner wall surface 11 of the shaft tube 1.
Specifically, the types of the first recessed portion 232 and the second recessed portion 233 are not limited in the present invention, and the first accommodation chamber S1 and the second accommodation chamber S2 can be formed with the inner wall surface 11 of the shaft tube 1 respectively; in the present embodiment, the first and second recesses 232 and 233 are formed as a single inclined surface 232a and 233a, respectively.
Referring to fig. 4, in detail, the spacer 23 may have an outer wall surface 234 connected to the shaft tube 1, the outer wall surface 234 abuts against the inner wall surface 11 of the shaft tube 1, and the first recess 232 and the second recess 233 are respectively connected to the outer wall surface 234, such that the first recess 232 and the second recess 233 are respectively connected between the two axial end surfaces 231 and the outer wall surface 234. The inclined surface 232a and the outer wall 234 form a first included angle θ 1, and the first included angle θ 1 is preferably 2 to 45 degrees; the inclined surface 233a and the outer wall 234 form a second included angle θ 2, and the second included angle θ 2 is preferably 2 to 45 degrees.
Referring to fig. 5, the first recess 232 can have an axial height H1, the second recess 233 can have an axial height H2, and the axial height H1 of the first recess 232 and the axial height H2 of the second recess 233 are preferably less than or equal to 1/5 of the height H of the spacer 23. Furthermore, the inner wall D of the spacer 23 is preferably between the inner ring 21a and the outer ring 21b of the first bearing 21, and between the inner ring 22a and the outer ring 22b of the second bearing 22. On the other hand, the height H of the spacer 23 is preferably less than or equal to 1/3 of the height L of the axle tube 1 and greater than or equal to the heights F1 and F2 of the first bearing 21 and the second bearing 22.
Referring to fig. 3 and 4, with the above-mentioned structure, the tube interior assembly 2 is disposed in the tube 1, and the spacer 23 of the tube interior assembly 2 is located between the first bearing 21 and the second bearing 22; the first accommodation chamber S1 is formed between the first recess 232 of the spacer 23 and the inner wall surface 11 of the shaft tube 1, and the second accommodation chamber S2 is formed between the second recess 233 of the spacer 23 and the inner wall surface 11 of the shaft tube 1. Accordingly, when the shaft tube interior assembly 2 is installed, the spacer 23 is first installed in the shaft tube 1 through the first open end 1a or the second open end 1b of the shaft tube 1 such that the outer wall surface 234 of the spacer 23 abuts against the inner wall surface 11 of the shaft tube 1.
Then, the first bearing 21 is inserted through the first open end 1a of the shaft tube 1, and the second bearing 22 is inserted through the second open end 1b of the shaft tube 1. In the process of mounting the first bearing 21 and the second bearing 22, since the first bearing 21 and the second bearing 22 are tightly fitted or bonded to the inner wall surface 11 of the shaft tube 1 by dispensing, the first bearing 21 and the second bearing 22 are prone to generate shavings due to friction and scraping with the inner wall surface 11 of the shaft tube 1, or generate adhesive residue due to adhesive overflow. At this time, shavings or adhesive residues generated by the first bearing 21 are accumulated in the first accommodating chamber S1 along with the installation path of the first bearing 21, and shavings or adhesive residues generated by the second bearing 22 are accumulated in the second accommodating chamber S2 along with the installation path of the second bearing 22. Therefore, the chippings or the residual rubber cannot escape into the first bearing 21 and the second bearing 22, so as to improve the rotational stability of the inner ring 21a of the first bearing 21, the inner ring 22a of the second bearing 22 and the rotating shaft C, and avoid the generation of abnormal sound caused by the unsmooth operation of the first bearing 21 and the second bearing 22.
Referring to fig. 5, since the axial height H1 of the first recess 232 and the axial height H2 of the second recess 233 are both less than or equal to 1/5 of the height H of the spacer 23; so as to ensure that the outer wall surface 234 of the spacer 23 has a sufficient area to abut against the inner wall surface 11 of the shaft tube 1, so that the spacer 23 and the shaft tube 1 can be firmly combined, thereby improving the combination stability of the spacer 23 and the shaft tube 1.
Furthermore, since the inner wall D of the spacer 23 is preferably between the inner ring 21a and the outer ring 21b of the first bearing 21, and between the inner ring 22a and the outer ring 22b of the second bearing 22; so as to ensure that the spacer 23 does not abut against the inner ring 21a of the first bearing 21 and the inner ring 22a of the second bearing 22, thereby preventing the inner ring 21a of the first bearing 21, the inner ring 22a of the second bearing 22, and the rotating shaft C from being unable to rotate smoothly. On the other hand, since the height H of the spacer 23 is less than or equal to 1/3 of the height L of the axle tube 1 and is greater than or equal to the heights F2 and F2 of the first bearing 21 and the second bearing 22; thus, the spacer 23, the first bearing 21 and the second bearing 22 can have better space configuration.
Referring to fig. 6, which is a second embodiment of the motor shaft seat of the present invention, the first recessed portion 232 and the second recessed portion 233 form an arc surface 232b, 233b, respectively, so that the first accommodation chamber S1 and the second accommodation chamber S2 form different shapes; therefore, the first recess 232 and the second recess 233 can provide another embodiment, and the spacer 23 has the technical effect of being easily assembled to the shaft tube 1.
Referring to fig. 7, which is a third embodiment of the motor shaft seat of the present invention, the spacer 23 utilizes the difference in outer diameter to form a first shoulder 232c and a second shoulder 233c, the first shoulder 232c forms the first recessed portion 232, and the second shoulder 233c forms the second recessed portion 233; therefore, the first recess 232 and the second recess 233 can provide another embodiment, and the spacer 23 has the technical effect of being easily assembled to the shaft tube 1.
In summary, in the motor shaft seat of the present invention, the first accommodating chamber is formed between the first recessed portion of the spacer and the inner wall surface of the shaft tube, and the second accommodating chamber is formed between the second recessed portion of the spacer and the inner wall surface of the shaft tube; therefore, when the first bearing and the second bearing are installed, scraps generated by friction and scraping of the inner wall surfaces of the first bearing, the second bearing and the shaft tube or residual glue generated by glue overflow can be respectively stored in the first accommodating chamber and the second accommodating chamber along with the installation paths of the first bearing and the second bearing, so that the scraps or the residual glue cannot run into the first bearing and the second bearing, and abnormal sound caused by unsmooth operation of the first bearing and the second bearing is avoided. Therefore, when the motor shaft seat is combined with the motor rotor for use, the rotating shaft of the motor rotor can maintain good rotating smoothness, and the technical effects of improving the operating efficiency of the motor, prolonging the service life and the like are achieved.
Claims (14)
1. A motor shaft mount, comprising:
a shaft tube; and
an intraductal subassembly of central siphon, this intraductal subassembly of central siphon is located this central siphon, and this intraductal subassembly of central siphon has a spacer that is located between a first bearing and a second bearing, and a first depressed part and a second depressed part are connected respectively to two axial end faces of this spacer, forms a first appearance room between the internal face of this first depressed part and this central siphon, forms a second appearance room between the internal face of this second depressed part and this central siphon.
2. The motor shaft seat of claim 1, wherein the spacer has an outer wall surface connected to the shaft tube, the outer wall surface abutting against the inner wall surface of the shaft tube, the first recess and the second recess being connected to the outer wall surface, respectively.
3. The motor shaft seat of claim 1 wherein the first recess and the second recess each define a ramp.
4. The motor shaft seat of claim 3 wherein the first recess forms a first included angle with an outer wall surface of the spacer, the first included angle being 2-45 degrees.
5. The motor shaft seat of claim 3, wherein the second recess forms a second included angle with an outer wall surface of the spacer, the second included angle being 2-45 degrees.
6. The motor shaft seat of claim 1, wherein the first and second recesses each form an arcuate surface.
7. The motor shaft seat of claim 6, wherein the first recessed portion forms a first included angle with an outer wall surface of the spacer, the first included angle being 2-45 degrees.
8. The motor shaft seat of claim 6, wherein the second recess forms a second included angle with an outer wall surface of the spacer, the second included angle being 2-45 degrees.
9. The motor shaft seat of claim 1 wherein the spacer utilizes an outer diameter differential to form a first shoulder and a second shoulder, the first shoulder forming the first recess and the second shoulder forming the second recess.
10. The motor shaft seat of claim 1 wherein the axial height of the first recess and the axial height of the second recess are both less than or equal to 1/5 the height of the spacer.
11. The motor shaft receptacle of claim 1 wherein the spacer height is less than or equal to 1/3 the shaft tube height and greater than or equal to the first bearing height and the second bearing height.
12. The motor shaft receptacle of claim 1 wherein the spacer inner wall is between the inner and outer rings of the first bearing and between the inner and outer rings of the second bearing.
13. The motor shaft seat of any one of claims 1 to 12, wherein the shaft tube is made of metal.
14. The motor shaft receptacle of any one of claims 1-12, further comprising a base plate coupled to the shaft tube.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW107125519 | 2018-07-24 | ||
| TW107125519A TWI681609B (en) | 2018-07-24 | 2018-07-24 | Shaft seat for a motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110752699A true CN110752699A (en) | 2020-02-04 |
Family
ID=69275608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810855636.2A Pending CN110752699A (en) | 2018-07-24 | 2018-07-31 | Motor shaft seat |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110752699A (en) |
| TW (1) | TWI681609B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6488412B1 (en) * | 1999-09-17 | 2002-12-03 | Sunonwealth Electric Machine Industry Co., Ltd. | Bearing sleeve assemblies for heat dissipating fan motors |
| CN1399080A (en) * | 2001-07-10 | 2003-02-26 | 日本精工株式会社 | Rolling bearing and bearing unit |
| DE202009008111U1 (en) * | 2009-05-30 | 2010-11-04 | Ebm-Papst St. Georgen Gmbh & Co. Kg | External rotor motor, in particular small or micro motor and spacer for such a motor |
| CN103174755A (en) * | 2011-12-21 | 2013-06-26 | 德昌电机(深圳)有限公司 | Method of mounting a shaft in a bearing carrier and bearing carrier |
| CN204103639U (en) * | 2014-07-25 | 2015-01-14 | 昆山广兴电子有限公司 | Motor axis tube and be provided with the motor of this motor axis tube |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW348910U (en) * | 1997-09-06 | 1998-12-21 | Sunonwealth Electr Mach Ind Co | Improved apparatus for bearing collar of motor |
| CN2699567Y (en) * | 2004-04-09 | 2005-05-11 | 精达先进科技股份有限公司 | Mounting position adjustable axle seat structure of motor |
| CN100477449C (en) * | 2004-12-02 | 2009-04-08 | 奇鋐科技股份有限公司 | Structure for preventing motor from dropping |
| TW200805859A (en) * | 2006-07-04 | 2008-01-16 | Sunonwealth Electr Mach Ind Co | Brushless DC motor structure |
| TWI412214B (en) * | 2010-03-26 | 2013-10-11 | Sunonwealth Electr Mach Ind Co | Motor base |
| JP6100046B2 (en) * | 2013-03-19 | 2017-03-22 | Ntn株式会社 | Fluid dynamic bearing device and motor including the same |
| US9787148B2 (en) * | 2015-01-07 | 2017-10-10 | Asmo Co., Ltd. | Motor |
| JP2018007383A (en) * | 2016-06-30 | 2018-01-11 | ミネベアミツミ株式会社 | Spindle motor and base member for spindle motor |
| TWI611651B (en) * | 2016-09-29 | 2018-01-11 | 建準電機工業股份有限公司 | Stator assembly of outer-rotor motor |
-
2018
- 2018-07-24 TW TW107125519A patent/TWI681609B/en active
- 2018-07-31 CN CN201810855636.2A patent/CN110752699A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6488412B1 (en) * | 1999-09-17 | 2002-12-03 | Sunonwealth Electric Machine Industry Co., Ltd. | Bearing sleeve assemblies for heat dissipating fan motors |
| CN1399080A (en) * | 2001-07-10 | 2003-02-26 | 日本精工株式会社 | Rolling bearing and bearing unit |
| DE202009008111U1 (en) * | 2009-05-30 | 2010-11-04 | Ebm-Papst St. Georgen Gmbh & Co. Kg | External rotor motor, in particular small or micro motor and spacer for such a motor |
| CN103174755A (en) * | 2011-12-21 | 2013-06-26 | 德昌电机(深圳)有限公司 | Method of mounting a shaft in a bearing carrier and bearing carrier |
| CN204103639U (en) * | 2014-07-25 | 2015-01-14 | 昆山广兴电子有限公司 | Motor axis tube and be provided with the motor of this motor axis tube |
Also Published As
| Publication number | Publication date |
|---|---|
| TW202008687A (en) | 2020-02-16 |
| TWI681609B (en) | 2020-01-01 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200204 |