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GB/T 39545.3-2020 English PDF

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US$869.00 · In stock
Delivery: <= 6 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 39545.3-2020: Design and selection of components for enclosed gear drives - Part 3: Shaft-to-hub juncture with keyless fits
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 39545.3-2020	869	Add to Cart	6 days	Design and selection of components for enclosed gear drives - Part 3: Shaft-to-hub juncture with keyless fits	Valid

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Basic data

Standard ID: GB/T 39545.3-2020 (GB/T39545.3-2020)
Description (Translated English): Design and selection of components for enclosed gear drives - Part 3: Shaft-to-hub juncture with keyless fits
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J19
Classification of International Standard: 21.120
Word Count Estimation: 47,482
Date of Issue: 2020-12-14
Date of Implementation: 2021-10-01
Quoted Standard: GB/T 1800.1; GB/T 1800.2; GB/T 11334-2005; GB/T 12360-2005
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 terms and definitions, symbols, calculation basis and design precautions, design and verification of interference connections, and longitudinal transmission of the keyless connection of shafts and hubs of closed gear transmissions (hereinafter referred to as interference connections) The general requirements of ying connection, hydraulic installation or disassembly of the wheel yi configuration, hydraulic installation and disassembly equipment, inspection, installation, fixing and disassembly of the conical hole wheel yi, inspection, installation and removal of the cylindrical hole wheel hub. This standard applies to the interference connection between the shaft and the wheel when the general industrial closed gear transmission in the form of spur gears, helical gears, herringbone gears, bevel gears and worms of metal materials adopts conical and cylindrical holes. It is suitable for the connection of the shaft with keyway, spline, non-integral hub or polygonal hole.

GB/T 39545.3-2020: Design and selection of components for enclosed gear drives - Part 3: Shaft-to-hub juncture with keyless fits

---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.
(Design and selection of components of closed gear transmission:Part 3: Keyless mating connection of shaft and hub) ICS 21:120 J19 National Standards of People's Republic of China Design and Selection of Components of Closed Gear Transmission Part 3: Keyless mating connection of shaft and hub 2020-12-14 release 2021-10-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Preface Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Symbol 4 5 Calculation basis and design considerations 7 5:1 Calculation basis 7 5:2 Design considerations 7 6 Design and verification of interference connection 8 6:1 Calculation torque T, safety factor K and friction factor μ 8 6:2 Calculation content 8 6:3 Calculation of minimum interference required to transfer load 9 6:4 Calculation of the maximum allowable interference without plastic deformation 11 6:5 Cylindrical interference fit selection 12 6:6 Choice of Conical Interference Fitting 12 6:7 Requirements for the bonding surface 16 6:8 Check of interference connection 17 6:9 Calculation of the amount of hub outer diameter expansion and shaft inner diameter reduction 17 6:10 Axial press-in force and press-out force during installation and disassembly 18 6:11 Pressure required for hydraulic installation and removal 18 6:12 Hub stress 18 6:13 Calculation example 19 7 General requirements for longitudinal interference connection 19 7:1 Structural requirements 19 7:2 Preparation before connection 21 7:3 Assembly of longitudinal connection 21 8 Hub configuration for hydraulic installation or removal 21 8:1 Oil filling port design 21 8:2 O-ring configuration design 21 9 Hydraulic installation and removal equipment 22 10 Inspection, installation, fixation and removal of conical hole hub 23 10:1 Contact check 23 10:2 Check the fit between the hub and the shaft 23 10:3 Installation 23 10:4 Fixing 27 10:5 Disassembly 27 10:6 Stress relief grooves in the hub 27 11 Inspection, installation and removal of cylindrical hole hub 27 11:1 Inspection 27 11:2 Installation 27 11:3 Disassembly 28 11:4 Stress relief grooves on the hub 28 Appendix A (informative appendix) Some coefficients in the calculation of interference 29 Appendix B (informative appendix) Calculation example 32 Appendix C (informative appendix) Typical design and dimensions of slotting and hydraulic assembly holes 37 Appendix D (informative appendix) Hydraulic installation and disassembly equipment 40 References 43

Foreword

GB/T 39545 "Parts Design and Selection of Closed Gear Transmissions" is divided into the following 5 parts: ---Part 1: Design and selection of general parts; ---Part 2: Key connection between shaft and hub; ---Part 3: Keyless mating connection of shaft and hub; ---Part 4: Selection of the balance level of the elastic coupling; ---Part 5: Static and dynamic characteristics of elastic couplings: This part is Part 3 of GB/T 39545: This section was drafted in accordance with the rules given in GB/T 1:1-2009: This part was proposed by China Machinery Industry Federation: This part is under the jurisdiction of the National Reducer Standardization Technical Committee (SAC/TC357): Drafting organizations of this part: Tianjin Huajian Tianheng Transmission Co:, Ltd:, Jiangsu Tailong Reducer Co:, Ltd:, World Transmission (Tianheng) Tianjin) Co:, Ltd:, Taiyuan University of Technology, Chongqing University, Nanjing University of Aeronautics and Astronautics, Zhengzhou Machinery Research Institute Co:, Ltd:, Hunan Huajianheng Chuang Drive Technology Co:, Ltd:, Jiangsu Golden Elephant Transmission Equipment Co:, Ltd:, Beijing Xinxing Beyond Clutch Co:, Ltd: The main drafters of this section: Li Zhaogang, Sun Hongli, Zhang Shaoming, Kong Xia, Wang Tie, Liu Shijun, Wei Jing, Zhao Ying, Liao Mingjian, Wang Yonghui, Wu Zhifei, Zhang Ruiliang, Bao Heyun, Lu Fengxia, Zhu Rupeng, Yin Ping, Cai Yunlong, Chen Yonghong, Fu Yong, Dong Jianfeng, Kong Qingtang, Zhu Zicheng: Design and Selection of Components of Closed Gear Transmission Part 3: Keyless mating connection of shaft and hub

1 Scope

This part of GB/T 39545 specifies the keyless connection of the shaft and hub of the closed gear transmission (hereinafter referred to as the interference connection) Terms and definitions, symbols, calculation basis and design considerations, design and verification of interference connections, general requirements for longitudinal interference connections, liquid Hub configuration for pressure installation or removal, hydraulic installation and removal equipment, inspection, installation, fixing and removal of conical hole hubs, cylindrical hole hubs Inspection, installation and removal: This section applies to general industrial closed gears in the form of spur gears, helical gears, herringbone gears, bevel gears and worms made of metal materials: The interference connection between the shaft and the hub when the transmission device adopts a conical hole and a cylindrical hole is not suitable for the shaft with keyway, spline, non-integral hub or Connection of polygonal hole hub:

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 1800:1 Product Geometric Technical Specification (GPS) Linear Dimension Tolerance ISO Code System Part 1: Tolerances, Deviations and Matching The basis of integration (ISO 286-1:2010, MOD) GB/T 1800:2 Product Geometric Technical Specification (GPS) Linear Dimensional Tolerance ISO Code System Part 2: Standard Tolerance Zone Code No:, hole and shaft limit deviation table (ISO 286-2:2010, MOD) GB/T 11334-2005 Product Geometrical Technical Specification (GPS) Cone Tolerance GB/T 12360-2005 Product Geometrical Technical Specification (GPS) Cone Fit

3 Terms and definitions

The following terms and definitions apply to this document: 3:1 Juncturewithkeylessfits Interference fit connection without keys: 3:2 Amount of interference The difference between the outer diameter of the contained part and the inner diameter of the contained part at the matching diameter: Note 1: The hub of this standard is a contained part, and the shaft is a contained part: In the following descriptions, the terms "hub" and "shaft" are generally used instead of "containment Pieces" and "Included Pieces": Note 2: Rewrite GB/T 5371-2004, definition 3:1: 3:3 Interferencejuncture The connection method of the fixed structure formed by the shaft and the hub using the interference: Note: Rewrite GB/T 5371-2004, definition 3:3: ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 39545.3-2020_English be delivered?

Answer: Upon your order, we will start to translate GB/T 39545.3-2020_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 39545.3-2020_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 39545.3-2020_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.