Home Cart Quotation About-Us
www.ChineseStandard.net
SEARCH

GB/T 44751-2024 English PDF

Q: How long will the true-PDF of English version of GB/T 44751-2024 be delivered?

Upon your order, we will start to translate GB/T 44751-2024_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Q: Can I share the purchased PDF of GB/T 44751-2024_English with my colleagues?

Yes. The purchased PDF of GB/T 44751-2024_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Q: Does the price include tax/VAT?

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). Avoidance of Double Taxation Agreements (DTAs) between Singapore and 100+ Countries: https://www.iras.gov.sg/taxes/international-tax

Q: Do you accept my currency other than USD?

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.

US$229.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 44751-2024: Fine ceramics - Silicon nitride materials for rolling bearing balls and rollers
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 44751-2024	229	Add to Cart	3 days	Fine ceramics - Silicon nitride materials for rolling bearing balls and rollers	Valid

Similar standards

GB/T 51033 GB/T 50082

Basic data

Standard ID: GB/T 44751-2024 (GB/T44751-2024)
Description (Translated English): Fine ceramics - Silicon nitride materials for rolling bearing balls and rollers
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Q32
Classification of International Standard: 81.060.30
Word Count Estimation: 11,184
Date of Issue: 2024-10-26
Date of Implementation: 2025-05-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 44751-2024: Fine ceramics - Silicon nitride materials for rolling bearing balls and rollers

---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/GBT44751-2024
ICS 81.060.30 CCSQ32 National Standard of the People's Republic of China Fine Ceramics Silicon nitride materials for rolling bearing balls and rollers Released on October 26, 2024 Implementation on May 1, 2025 State Administration for Market Regulation The National Standardization Administration issued

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. This document is modified to adopt ISO 26602.2017 "Fine ceramics (advanced ceramics, advanced technical ceramics) Silicon nitride for rolling bearing balls Material". Compared with ISO 26602.2017, this document has many structural adjustments. The structural number changes between the two documents are shown in the table below. See Appendix A. This document has many technical differences compared to ISO 26602.2017. A list of these technical differences and their causes is given in Appendix B. The following editorial changes have been made to this document. --- To coordinate with the existing standard, the name of the standard is changed to "Silicon Nitride Materials for Fine Ceramic Rolling Bearing Balls and Rollers"; --- Deleted Notes 1 and 2 in the scope of Chapter 1 of ISO 26602.2017; --- Deleted the notes to 3.1 and 3.2 in ISO 26602.2017; --- Added Appendix A (informative) "Comparison table of structure numbers between this document and ISO 26602.2017"; --- Added Appendix B (informative) "List of technical differences between this document and ISO 26602.2017 and their causes". 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 is proposed by China Building Materials Federation. This document is under the jurisdiction of the National Technical Committee for Standardization of Industrial Ceramics (SAC/TC194). This document was drafted by. Sinoma High-Tech Nitride Ceramics Co., Ltd., Jilin Changyu Special Ceramics New Materials Technology Co., Ltd., Hengyang Kai New Special Materials Technology Co., Ltd., Shandong Industrial Ceramics Research and Design Institute Co., Ltd., Zhejiang Jingjiu Bearing Industry Co., Ltd., SKF (Shanghai) Automotive Technology Co., Ltd., Liaocheng Taitong Precision Machinery Technology Co., Ltd., Qianchao Intelligent Manufacturing (Shishou) Co., Ltd., Wuxi Yulu Precision Co., Ltd., Henan Nolante New Material Technology Co., Ltd., Jiangsu Lixing General Steel Ball Co., Ltd., Dong'e Seagull Steel Ball Co., Ltd., Shandong Fuma Bearing Co., Ltd., Shandong Sinoceramic Functional Materials Co., Ltd., Ningbo Fulken Technology Co., Ltd., Zhejiang Chengben Bearing Bearing Roller Co., Ltd., Anyang Henry Hi-Tech Industrial Co., Ltd., Hunan Weishang Technology Co., Ltd., Shanghai Tianan Bearing Co., Ltd., Shandong Province Yangfan Bearing Co., Ltd., Qinhuangdao Mingjingyuan Safety Technology Glass Co., Ltd., Linqing Bainuo Bearing Co., Ltd., Shandong Ruixin Bearing Manufacturing Co., Ltd. Manufacturing Co., Ltd. The main drafters of this document are. Sun Feng, Wang Zaiyi, Dong Tingxia, Zhang Yelei, Wang Yujin, Xu Xuemin, Li Yongquan, Chen Changzhu, Yao Lingwei, Zhao Shengxiang, Zou Zhonghua, Zhao Gaoming, Yang Yong, Wang Yanzhang, Chen Xingjun, Lu Chengming, Yuan Ming, Gu Jiaqi, Wang Mengyi, Xia Jinghao, Chen Pingsong, Wang Sheng, Huang Xuebin, Yuan Haijie, Tao Yuling, Xu Jinmeng, Ding Hao, Zhu Heng, Zhang Yan, Wang Qiang, Zhang Meng, Huang Rongxia, Wang Lu, Shao Yajie, Zeng Xiaofeng, Sun Xudong, Yang Bin, Li Guining, Zhang Yunhe, and Song Zhen. Fine Ceramics Silicon nitride materials for rolling bearing balls and rollers

1 Scope

This document specifies the requirements for silicon nitride materials for rolling bearing balls and rollers. This document defines the physical and mechanical properties of silicon nitride materials for rolling bearing balls and rollers. Appendix C provides the methods for sample preparation and microstructure analysis. This document applies to machined rolling bearing balls and rollers.

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 6569 Fine Ceramics - Test Method for Flexural Strength (GB/T 6569-2006, ISO 14704.2016, MOD) GB/T 16534 Test method for room temperature hardness of fine ceramics (GB/T 16534-2009, ISO 14705.2016, MOD) GB/T 16535 Test method for linear thermal expansion coefficient of fine ceramics - Ejector pin method (GB/T 16535-2008, ISO 17562. 2016, MOD) GB/T 17991 Terminology for Fine Ceramics (GB/T 17991-2009, ISO 20507.2022, MOD) GB/T 25995 Test method for density and apparent porosity of fine ceramics (GB/T 25995-2010, ISO 18754.2020, MOD) GB/T 40005 Weibull statistical analysis method for strength data of fine ceramics (GB/T 40005-2021, ISO 20501. 2019, MOD) GB/T 41605-2022 Test method for fracture resistance of silicon nitride materials for rolling bearing balls at room temperature - Indentation method (GB/T 41605-2022, ISO 14627.2012, MOD) JC/T 2172 Test method for elastic modulus, shear modulus and Poisson's ratio of fine ceramics - Pulse excitation method

3 Terms and Definitions

For the purposes of this document, the terms and definitions defined in GB/T 17991 and GB/T 41605-2022 and the following apply. 3.1 KI,IFR The ability of a material to resist crack growth caused by indentation. [Source. GB/T 41605-2022, 3.1] 3.2 inclusion In silicon nitride ceramics for rolling bearing balls and rollers, agglomerates of sintering additives and components other than the normal Si3N4 impurities. ......

Image

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 44751-2024_English be delivered?

Answer: Upon your order, we will start to translate GB/T 44751-2024_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 44751-2024_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 44751-2024_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.