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GB/T 39566-2020 English PDF

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GB/T 39566-2020: Micro motors - Axial end play
Status: Valid
Standard IDUSDBUY PDFLead-DaysStandard Title (Description)Status
GB/T 39566-2020209 Add to Cart 3 days Micro motors - Axial end play Valid

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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: 11,131
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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