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GB/T 8542-2023 English PDF

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Q: Should I purchase the latest version GB/T 8542-2023?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 8542-2023 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$729.00 · In stock
Delivery: <= 6 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 8542-2023: High speed gear units technical specifications
Status: Valid

GB/T 8542: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 8542-2023	729	Add to Cart	6 days	High speed gear units technical specifications	Valid
GB/T 8542-1987	599	Add to Cart	4 days	Specification for turbine gearings	Obsolete

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Basic data

Standard ID: GB/T 8542-2023 (GB/T8542-2023)
Description (Translated English): High speed gear units technical specifications
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J17
Classification of International Standard: 21.200
Word Count Estimation: 38,360
Date of Issue: 2023-09-07
Date of Implementation: 2023-09-07
Older Standard (superseded by this standard): GB/T 8542-1987
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 8542-2023: High speed gear units technical specifications

---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.
ICS 21.200 CCSJ17 National Standards of People's Republic of China Replace GB/T 8542-1987 Technical Specifications for High Speed Gear Transmissions Published on 2023-09-07 Implemented on 2023-09-07 State Administration for Market Regulation Released by the National Standardization Administration Committee

PrefaceⅠ 1 Scope 1 2 Normative reference documents 1 3 Terms and Definitions 2 4 Code name, overall dimensions 3 4.1 Code 3 4.2 Overall dimensions 4 5 Technical requirements 4 5.1 Complete machine 4 5.2 Main components 5 5.3 Other parts 8 5.4 Assembly 9 6 Complete machine inspection methods 10 6.1 Appearance 10 6.2 Seal10 6.3 Noise 10 6.4 Lubricant 10 6.5 Temperature 10 6.6 Vibration 10 6.7 Explosion-proof10 7 Random files and special tools 10 7.1 Random files 10 7.2 Special tools 11 8 Marking, packaging, transportation and storage 11 8.1 Flag 11 8.2 Packaging and transportation12 8.3 Storage12 Appendix A (informative) Appearance and connection dimensions 13 Appendix B (informative) Noise sound pressure level 22 Appendix C (informative) Lubrication 24 Appendix D (Informative) Coupling 27 Appendix E (informative) Footing installation requirements 29 Appendix F (informative) Seller information 31 Appendix G (informative) Use coefficient selection 33 Reference 34

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. This document replaces GB/T 8542-1987 "Technical Conditions for Turbine Gear Transmission Devices". Compared with GB/T 8542-1987, except for the structure In addition to adjustments and editorial changes, the main technical changes are as follows. a) Changed the “scope” (see Chapter 1, 1.1 of the 1987 edition); b) Changed “Terms and Definitions” (see Chapter 3, 1.3 of the 1987 edition); c) Added “code name, overall dimensions” (see Chapter 4); d) Added "complete machine" technical requirements (see 5.1); e) Changed the technical requirements for “main components” (see 5.2, Chapter 2 of the 1987 edition); f) Added “assembly” requirements (see 5.4); g) Changed the "Complete Machine Test Method" (see Chapter 6, Chapter 3 of the 1987 edition); h) “Inspection” is deleted (see Chapter 4 of the 1987 edition); i) Added "random files and special tools" (see Chapter 7); j) Changed “marking, packaging, transportation and storage” (see Chapter 8, Chapter 5 of the 1987 edition); k) “Guarantee” has been deleted (see Chapter 6 of the 1987 edition). Please note that some content in this document may be subject to patents. The publisher of this document assumes no responsibility for identifying patents. This document is proposed and coordinated by the National Gear Standardization Technical Committee (SAC/TC52). This document was drafted by. Zhengzhou Machinery Research Institute Co., Ltd., Zhejiang Shuanghuan Transmission Machinery Co., Ltd., Nanjing High Precision Gear Group Co., Ltd., Chongqing Gearbox Co., Ltd., Xi'an Shaangu Power Co., Ltd., Zheng Machinery (Zhengzhou) Transmission Technology Co., Ltd., Liaoning Ningjinhua Transmission Machinery Manufacturing Co., Ltd., Henan University of Science and Technology, Xi'an Fast Automobile Transmission Co., Ltd., Jiangsu Huizhi High-end Engineering Machinery Innovation Center Co., Ltd., Chongqing University, China Machinery Research Institute Group Ningbo Intelligent Machine Tool Research Institute Co., Ltd., Zhengzhou High-end Equipment and Information INDUSTRIAL TECHNOLOGY INSTITUTE LIMITED. The main drafters of this document. Wu Luji, Wang Zhigang, Yang Linjie, Li Bingji, Wu Mingjun, Li Haixia, Yang Zhen, Ma Maosheng, Li Zhen, Wang Xu, Yan Jianbo, Fan Ruili, Wei Bingyang, Zhan Dongan, Liu Yi, Liu Huaiju, Wu Shuangfeng, Yan Jiang, Wu Chunqiao, Sun Yibo, Guo Qingqing, Guan Hongjie, Cao Zhigang, Yao Shuan, Li Ningbo, Wei Peitang, Mu Yuhang. This document was first published in 1987 and this is the first revision. Technical Specifications for High Speed Gear Transmissions

1 Scope

This document specifies the product code, overall dimensions, technical requirements, and complete machine of the high-speed gear transmission device 1) (hereinafter referred to as "gear device") Inspection methods, random documents and special tools, as well as marking, packaging, transportation and storage. This document is suitable for use in petroleum, chemical, electric power, metallurgy and other industries where sliding bearings are supported, the tooth profile complies with GB/T 1356, and the pinion speed Gear transmission device with external meshing involute parallel shaft cylindrical hard tooth surface with a speed not less than 3000r/min or a pitch circle speed not less than 30m/s. Other high-speed gear transmission devices with similar structures can be implemented with reference to this document. This document does not apply to gear transmissions integrated with other rotating equipment such as prime movers or working machines.

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document. GB/T 1174 Cast Bearing Alloy GB/T 3098.1 Mechanical properties of fasteners bolts, screws and studs GB/T 3181 paint film color standard GB/T 3374.1 Gear terms and definitions Part 1.Geometric definitions GB/T 3480.5 Calculation of load carrying capacity of spur gears and helical gears Part 5.Material strength and quality GB/T 3836.1 Explosive atmosphere Part 1.General requirements for equipment GB/T 6075.3 Mechanical vibration measurement and evaluation of machine vibration on non-rotating parts Part 3.Rated power greater than 15kW Industrial machines with rated speeds between 120r/min and 15000r/min measured on site GB/T 6404.1 Acceptance specifications for gear units Part 1.Test specifications for airborne noise GB/T 9439 gray iron castings GB/T 10095.1 Cylindrical gear ISO tooth surface tolerance classification system Part 1.Definition and allowable values of tooth surface deviation GB 11120 turbine oil GB/T 11348.3 Mechanical vibration measurement on rotating shafts - Evaluation of machine vibrations - Part 3.Coupled industrial machines GB/T 17879 Chemical etching test for surface tempering of gears after grinding GB/T 18329.1 Ultrasonic non-destructive testing of bonding strength of sliding bearings and multi-layer metal sliding bearings GB/T 30121 Industrial platinum thermal resistor and platinum temperature sensing element GB/T 30429 Industrial thermocouple GB/T 37400.3 General technical conditions for heavy machinery Part 3.Welding parts 1) The high-speed gear device described in this document includes necessary components such as gears, shafts, boxes, sliding bearings, ventilation units, temperature measuring elements, bolts, seals, etc. And optional auxiliary components such as turning device, oil pump, vibration measuring element, base, coupling, oil mist fan, etc. The gear structure is single helical tooth or double helical tooth. gear For the normal module, see GB/T 1357.The number of teeth of the large and small gears generally has no common denominator, and the gear ratio is generally not an integer. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 8542-2023_English be delivered?

Answer: Upon your order, we will start to translate GB/T 8542-2023_English as soon as possible, and keep you informed of the progress. The lead time is typically 4 ~ 6 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 8542-2023_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 8542-2023_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 8542-2023?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 8542-2023 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.