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Micro motors - Axial end play
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Basic data
| Standard ID | GB/T 39566-2020 (GB/T39566-2020) |
| Description (Translated English) | Micro motors - Axial end play |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | K24 |
| Classification of International Standard | 29.160.30 |
| Word Count Estimation | 11,166 |
| Date of Issue | 2020-12-14 |
| Date of Implementation | 2021-07-01 |
| Quoted Standard | GB/T 1804-2000; GB/T 2900.26; GB/T 7345-2008 |
| Regulation (derived from) | National Standard Announcement No. 28 of 2020 |
| Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
| Summary | This standard specifies the frame number, structure, value of the axial gap, testing methods and testing rules for the axial gap of micromotors. This standard is applicable to the design, manufacture, inspection and acceptance of the axial clearance of assembled micromotors with a base outer diameter of 16 mm to 160 mm. |
GB/T 39566-2020: Micro motors - Axial end play
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
(Micro motor axial clearance)
ICS 29:160:30
K24
National Standards of People's Republic of China
Micro motor axial clearance
2020-12-14 release
2021-07-01 implementation
State Administration for Market Regulation
Issued by the National Standardization Management Committee
Table of contents
Preface Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 Frame number 1
5 Structure 2
6 Axial clearance value 2
7 Detection method 4
8 Inspection rules 5
Appendix A (informative appendix) Calculation method of axial clearance 6
Appendix B (informative appendix) Calculation method of axial clearance tension 8
Foreword
This standard was drafted in accordance with the rules given in GB/T 1:1-2009:
This standard was proposed by China Electrical Equipment Industry Association:
This standard is under the jurisdiction of the National Micromotor Standardization Technical Committee (SAC/TC2):
Drafting organizations of this standard: Xi'an Institute of Micromotors, Anhui Ifara Electric Co:, Ltd:, Hefei Kaibang Motor Co:, Ltd:, Zhejiang Teda
Micro Motor Co:, Ltd:, Shenzhen Zhengde Intelligent Control Co:, Ltd:, Xiamen Rituo Electrical Technology Co:, Ltd:, Dongguan Ruijing Electrical Technology Co:, Ltd:
Company, Guangdong Weizhaoye Photoelectric Energy Saving Co:, Ltd:, Foshan Gaoming Gaosheng Aluminum Co:, Ltd:, Rongcheng Hengli Motor Co:, Ltd:
The main drafters of this standard: Chen Feng, Dai Wenzhong, Chu Xiaolei, Qiu Rongquan, Li Hao, Ni Lioyong, Lin Jinli, Dong Hongliang, Wang Jiahua, Zhang Peng:
Micro motor axial clearance
1 Scope
This standard specifies the frame number, structure, value of the axial gap, testing methods and testing rules for the axial gap of the micromotor:
This standard is applicable to the design, manufacture, inspection and acceptance of the axial gap of the assembled micromotor with an outer diameter of 16mm ~ 160mm:
2 Normative references
The following documents are indispensable for the application of this document: For dated reference documents, only the dated version applies to this article
Pieces: For undated references, the latest version (including all amendments) applies to this document:
GB/T 1804-2000 General Tolerance Tolerance of linear and angular dimensions without tolerance
GB/T 2900:26 Electrician terminology control motor
GB/T 7345-2008 Basic technical requirements for control motors
3 Terms and definitions
The following terms and definitions defined in GB/T 2900:26 apply to this document:
3:1
Axial endplay
The two directions apply a prescribed force along the axial direction, which results in a varying distance between the shaft extension end surface and the motor mounting surface:
3:2
Axialmagneticpul
The pulling force generated by the axial magnetic field center between the stator and rotor of the motor does not coincide:
3:3
Temperaturerise
The micromotor generates current heating effect, iron loss and mechanical loss after the winding is energized: As time goes by, when the heat and heat dissipation are balanced, it is higher than
The value of the ambient temperature:
3:4
Bearingspan
The distance between the inner end faces of the bearings at the front and rear ends of the micromotor rotor:
4 Frame number
The frame number is expressed by diameter: When the micro-motor has a non-cylindrical structure, it is expressed by the diameter of the inscribed circle of the non-cylindrical section:
The corresponding relationship between the frame number and the outer diameter should comply with Table 1 or the product-specific technical conditions: The outer diameter is greater than 160mm by the product-specific technology
The technical conditions are stipulated:
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