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GB/T 11366-2025: Basic terminology of planetary drives
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GB/T 11366-1989	English	279	Add to Cart	3 days [Need to translate]	Basic terminology of planetary drives

GB/T 11366-2025: Basic terminology of planetary drives

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ICS 21.200 CCSJ17 National Standards of the People's Republic of China Replaces GB/T 11366-1989 Basic Terminology of Planetary Transmission Published on 2025-10-31 Implemented on May 1, 2026 State Administration for Market Regulation The State Administration for Standardization issued a statement.

Table of contents

Preface III 1.Scope 1 2 Normative References 1 3 General Concepts 1 4.Classification 2 4.1 According to the meshing method 2 4.2 According to the basic component combination method 6 4.3 By number of transmission stages 6 5 Applications 7 5.1 Low Tooth Difference Transmission 7 5.2 Harmonic Gear Transmission 13 5.3 Ravina-type transmission and Simpson-type transmission 15 5.4 Planetary roller screw drive 17 5.5 Planetary cycloidal drive 23 Reference 27 Index 28

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 11366-1989 "Basic Terminology of Planetary Transmissions". Compared with GB/T 11366-1989, except for structural adjustments and... Aside from editorial changes, the main technical changes are as follows. a) Change the term "planetary gear transmission mechanism" to "planetary gear drive" (see 3.1, 1989 edition 3.1); b) The definitions of “planetary gear” and “planet carrier” have been changed, and the permitted terms “planetary gear”, “carrier”, and “swing arm” have been added (see 3.2 and 3.6). (Sections 3.2 and 3.4 of the 1989 edition) c) Added the terms and definitions for "output component" and "output shaft" (see 3.8 and 3.9); d) The following terms have been removed. “2K-H type planetary gear transmission mechanism”, “3K type planetary gear transmission mechanism”, and “KVH type planetary gear transmission machine”. The terminology and definition of "structure" (see 3.5-3.7 of the 1989 edition); e) Added relevant terms and definitions for "classification" (see Chapter 4); f) Added "NGW type", "NW type", "NN type", "ZUWGW type", "N type", "NGWN type", "WW type", and "2K-H type" The terms and definitions of “3K type,” “KHV type,” “2K-V type,” and “KH type” are provided in sections 4.1.1–4.1.7 and 4.2.1–4.2.5. g) The following terms have been deleted. "involute internal gear pair with few tooth difference", "circular arc gear pair with few tooth difference", "circular arc spur gear", and "ordinary epicycloid circular arc spur gear". The terms and definitions for "variable amplitude epicycloid spur gear" and "variable amplitude involute spur gear" (see sections 4.12 and 4.13 of the 1989 edition) are as follows. 4.13.1~4.13.3); h) The following terms have been deleted. "live gear mechanism with few tooth differences", "live gear", "live tooth", "ball-loaded live gear", "roller live gear", "push rod live gear", and "combined live gear". The terminology and definition of "movable gear frame" (see 5.2-5.4, 5.4.1-5.4.4, 5.5 in the 1989 edition); i) Added terms and definitions for "wave number", "wave height", "wave height coefficient", "deformation", "maximum deformation", and "distortion" (see 5.2.7~). 5.2.12); j) The terms and definitions for "Ravina-type planetary gear transmission" and "Simpson-type planetary gear transmission" have been added (see 5.3.1 and 5.3.2); k) Added relevant terms and definitions for "planetary roller screw drives" (see 5.4); l) Added relevant terms and definitions for “planetary cycloidal transmission” (see 5.5). Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents. This document was proposed and is under the jurisdiction of the National Technical Committee on Gear Standardization (SAC/TC52). This document was drafted by. Zhengzhou Institute of Mechanical Engineering (Zhengzhou) Transmission Technology Co., Ltd., Chongqing Gearbox Co., Ltd., and China Academy of Machinery Science and Technology Group Corporation. Zhengzhou Machinery Research Institute Co., Ltd., CITIC Heavy Industries Machinery Co., Ltd., Zhejiang Xinke Transmission Technology Co., Ltd., Guangxi University, Shanghai Xing Hefei Electromechanical Co., Ltd., Northwestern Polytechnical University, Chongqing University, Zhejiang Xiaxia Precision Manufacturing Co., Ltd., Nanjing Chuangli Transmission Machinery Co., Ltd. Company, Chinese Mechanical Engineering Society, Zhejiang Tongli Transmission Technology Co., Ltd., Bote Intelligent Equipment (Guangdong) Co., Ltd., Shanxi Aerospace Tsinghua Equipment Co., Ltd., Shandong Hengji Group Co., Ltd., Anhui Tianrui Precision Auto Parts Co., Ltd., Henan Purui Precision Mi Machinery Co., Ltd., Wittenstein (Hangzhou) Industrial Co., Ltd., Zhejiang Wuzhou Xinchun Group Co., Ltd., and Newgel Intelligent Transmission (Guangdong) Co., Ltd., China Coal Zhangjiakou Coal Mining Machinery Co., Ltd., Henan Ruige Transmission Machinery Co., Ltd., Zhengzhou Aviation Industry Corporation Faculty of Science. The main drafters of this document are. Xu Wenbo, Wang Chunmei, Wang Zhigang, Xin Wen, Yu Wenyong, Mo Shuai, Li Haixia, Jiang Neng, Fu Xiaojun, Wei Jing, and Xia Ting. Fei Xiuguo, Cao Zhigang, Xiang Chunjian, Fan Ruili, Liu Geng, Liang Zhengyan, Shi Lubing, Zhi Yanfeng, Hou Nai, Liu Mindong, Zheng Hongbo, Lü Hesheng, Li Simin Cheng Bo, Tang Jun, Tao Tianbao, Yuan Junrui, Liu Wei, Yu Feipeng, Guo Shixin, Que Hongjun, Guo Qingqing, Guan Hongjie, Zhang Heng, Zhu Jingwei, Hai Lei, Zhang Yuankai Huang Yunsheng, Xie Hongzhang, Wang Zhidong, Miao Weiwei, Zhang Xudong, Wang Xiaopeng, Dou Xiaopeng, Xu Yingjie, Yan Shidang, Yu Yang. This document was first published in 1989, and this is its first revision. Basic Terminology of Planetary Transmission

1 Scope

This document defines the basic terminology and definitions related to the general concepts, classifications, and applications of planetary transmissions. This document applies to the definition of various planetary transmission types, including low tooth difference, harmonic, Ravina, and Simpson types. Planetary roller screw, planetary cycloid.

2 Normative references

This document has no normative references.

3 General Concepts

3.1 Planetary gear drive A transmission system consisting of a central gear, planetary gears, a planetary carrier, and an output component. Note. The center gear (including the sun gear and internal gear ring), planetary gears, planet carrier, and output components are collectively referred to as the basic components of a planetary gear transmission. See Figure 1. Index number explanation. 1---Internal gear ring; 2---Planetary gears; 3---Sun Wheel; 4---Input axis; 5---Planet Carrier; 6---Output components. Figure 1 Schematic diagram of planetary gear transmission structure 3.2 planetary gear Planetary Gear ...