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GB/T 45861-2025 English PDF

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US$609.00 · In stock
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GB/T 45861-2025: Technical specification for accelerated fatigue test of heavy duty gearboxes
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 45861-2025	609	Add to Cart	5 days	Technical specification for accelerated fatigue test of heavy duty gearboxes	Valid

Basic data

Standard ID: GB/T 45861-2025 (GB/T45861-2025)
Description (Translated English): Technical specification for accelerated fatigue test of heavy duty gearboxes
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J17
Classification of International Standard: 21.200
Word Count Estimation: 30,333
Date of Issue: 2025-08-01
Date of Implementation: 2026-02-01
Issuing agency(ies): State Administration for Market Regulation, Standardization Administration of China

GB/T 45861-2025: Technical specification for accelerated fatigue test of heavy duty gearboxes

---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT45861-2025
ICS 21.200 CCSJ17 National Standard of the People's Republic of China Technical specification for accelerated fatigue test of heavy-duty gearboxes Released on August 1, 2025 Implementation on February 1, 2026 State Administration for Market Regulation The National Standardization Administration issued

Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Symbols and Descriptions 2 5 Test System 4 5.1 Test bench requirements 4 5.2 Test bench composition 5 6 Test conditions 5 7 Preparation before the test 6 7.1 General test preparation 6 7.2 Accelerated fatigue test load spectrum preparation 6 8 Test process, inspection and failure determination 10 8.1 No-load test 10 8.2 Load test 10 8.3 Accelerated fatigue test 10 8.4 Inspection and failure determination 10 Appendix A (Informative) Basic requirements for accelerated fatigue life test of gearboxes 11 A.1 Concept of Accelerated Fatigue Life Testing 11 A.2 Difficulties of Accelerated Fatigue Life Testing 11 A.3 Basic principles of accelerated fatigue life testing 11 A.4 Assumptions of accelerated fatigue life testing 12 A.5 Calculation of accelerated fatigue life test 12 Appendix B (Normative) Compilation of load spectrum for accelerated fatigue test of heavy-duty gearbox based on normal distribution 13 B.1 Original load spectrum processing 13 B.2 Normal distribution test of load sequence 14 B.3 Calculation of equivalent torque 14 B.4 Calculation of torque at each level in the accelerated fatigue test load spectrum 14 B.5 Calculation of the relative loading time of each level of torque in the load spectrum of accelerated fatigue test 15 B.6 Calculation of the total time required to convert each level of torque in the original load spectrum corresponding to the effective load spectrum to the rated torque 15 B.7 Calculation of load acceleration factor K 15 Appendix C (Normative) Preparation of load spectrum for accelerated fatigue test of heavy-duty gearbox based on eight-level load spectrum 17 C.1 Original load spectrum processing 17 C.2 Principle and calculation method of eight-level load spectrum 17 C.3 Accelerated fatigue test load spectrum compilation example based on Conover's eight-level load spectrum 17 Appendix D (Informative) Heavy-duty gearbox tooth inspection contents and failure judgment basis recommendation 23 Reference 24 Preface This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed by the China Machinery Industry Federation. This document is under the jurisdiction of the National Technical Committee for Standardization of Reducers (SAC/TC357). This document was drafted by. Chongqing University, Nanjing High Speed Gear Manufacturing Co., Ltd., Taiyuan Heavy Industry Co., Ltd., Chongqing Gearbox Co., Ltd. Responsible Company, Hunan Southern Aerospace High Precision Transmission Co., Ltd., Shandong Huacheng Sino-German Transmission Equipment Co., Ltd., Tianjin Huajian Tianheng Transmission Co., Ltd. Liability Company, Dalian University of Technology, China Shipbuilding Industry Corporation (Chongqing) Southwest Equipment Research Institute Co., Ltd., World Transmission (Tianjin) Co., Ltd., Jiangsu Tailong Reducer (Group) Co., Ltd., Jiangsu Zhonggong High-end Equipment Research Institute Co., Ltd., Ningbo Dongli Transmission Equipment Co., Ltd. Company, University of Electronic Science and Technology of China, Southeast University, Henan Purui Precision Machinery Co., Ltd., Suzhou Asia Pacific Elite Transmission Technology Co., Ltd., Hangzhou Jiepai Transmission Technology Co., Ltd., Henan Ruige Transmission Machinery Co., Ltd., Henan Tongji Reducer Co., Ltd., Guangdong Midea Electric Co., Ltd. Company, Chongqing Qingping Machinery Co., Ltd., Sote Transmission Equipment Co., Ltd., Qingdao Yinfit Precision Machinery Co., Ltd., Nanyang Haofan Automobile Auto Parts Co., Ltd., Changzhou Ailun Machinery Co., Ltd., and Xihua University. The main drafters of this document are. Wei Jing, He Aimin, Ji Kefeng, Shi Jia, Sun Yizhong, Li Jinku, Ju Guoqiang, Zhao Ying, Zhao Guang, Qian Huaming, Sun Hongli, Ding Jun, Zhou Yazheng, Yin Ping, Huang Hongzhong, Ding Weimin, Weng Guixiang, Xu Wei, Zhu Shunpeng, Zhu Jingwei, Lu Jianjiang, Zhang Ying, Guo Aigui, Gu Chengchao, Song Baoshen, Yang Xinrui, Zhao Jing, Zhao Sheng, Ge Jingguang, Sun Wukong, Zhang Fan, Pan Yifei, and Zhang Junfu. Technical specification for accelerated fatigue test of heavy-duty gearboxes Important note. Users of this document should have a good understanding of the actual load spectrum and main parts (including transmission shaft, gears) of similar products of the tested gearbox. The actual load spectrum can avoid accumulating fatigue damage to the failure of these parts. state. 1 Scope This document specifies the terms and definitions, symbols and instructions, test system, test conditions, pre-test Preparation, test procedure, inspection and failure determination. This document is applicable to wind power generation, mining, coal mining and marine equipment applications with a rated power of not less than 1000kW or The gearbox with a rated torque of not less than 100 kN·m has not reached failure qualification evaluation after accelerated fatigue test. 2 Normative references The contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 3374.1 Gear terms and definitions Part 1.Geometric definitions GB/T 3480.6-2018 Calculation of load capacity of spur and helical gears Part 6.Calculation of service life under variable load conditions JB/T 5558 Test methods for speed reducers (accelerators) 3 Terms and Definitions The terms and definitions defined in GB/T 3374.1 and the following apply to this document. 3.1 Heavy-duty gearboxes Gearbox with a rated power of not less than 1000kW or a rated torque of not less than 100kN·m. Note. Hereinafter referred to as gearbox. 3.2 failure One or more technical indicators of the gearbox have irreversibly exceeded the allowable value, or the components of the gearbox (excluding wearing parts) have Physical damage. Note. Consumable parts mainly refer to rubber seals, including lubricants, but do not include gears, bearings, shafts, housings and other transmission or support parts. Manufacturer's product manuals and other relevant documents. [Source. GB/T 40729-2021, 3.4] 3.3 Original load spectrum loadspectrum A general term for graphs, tables, matrices or other probabilistic eigenvalues that represent the magnitude, variation and frequency of loads in actual engineering. ......

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Question 1: How long will the true-PDF of GB/T 45861-2025_English be delivered?

Answer: Upon your order, we will start to translate GB/T 45861-2025_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 45861-2025_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 45861-2025_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.