GB/T 756-2010 English PDF

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GB/T 756-2010: Cylindrical shaft extension for rotating electrical machines
Status: Valid

GB/T 756: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 756-2010	169	Add to Cart	3 days	Cylindrical shaft extension for rotating electrical machines	Valid
GB/T 756-1990	239	Add to Cart	2 days	Cylindrical shaft extension for rotating electrical machines	Obsolete

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Basic data

Standard ID: GB/T 756-2010 (GB/T756-2010)
Description (Translated English): Cylindrical shaft extension for rotating electrical machines
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: K20
Classification of International Standard: 29.160
Word Count Estimation: 7,739
Date of Issue: 2010-11-10
Date of Implementation: 2011-05-01
Older Standard (superseded by this standard): GB/T 756-1990
Quoted Standard: GB/T 1095-2003; GB/T 1800.2-2009
Regulation (derived from): Announcement of Newly Approved National Standards No. 8 of 2010 (total 163)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the cylindrical rotating motor shaft (hereinafter referred to as shaft) dimensions and tolerances, keyways Symmetry tolerance and selection requirements. This standard applies to transfer torque to the rotating motor shaft end, shaft extension with a touch tank with flat keys and the driven machine or active links. Right without keyway, with double keyway and the use of other types of bond coupling shaft extension, the keyway dimensions and tolerances should be the standard in this type of motor to make regulations.

GB/T 756-2010: Cylindrical shaft extension for rotating electrical machines

---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.
Cylindrical shaft extension for rotating electrical machines ICS 29.160 K20 National Standards of People's Republic of China Replacing GB/T 756-1990 Rotary motor cylindrical shaft extension Issued on. 2010-11-10 2011-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

The revised standard and replaces GB/T 756-1990 "rotary motor cylindrical shaft extension", compared with the previous version, no technical standard content Differences, the main changes are as follows. --- Deleted the Chapter 2 of GB 1184 and references GB 1801, an increase of GB/T 1800.4-1999 of reference; --- Table 1 D size from 240 to 380, F limit deviation (tight junctions) of -0.100 to -0.106; --- "General key link" to "normal links", "tight coupling key" to "closely linked." The standard proposed by China Electrical Equipment Industrial Association. The standard rotary motor by the National Standardization Technical Committee (SAC/TC26) centralized. This standard was drafted. Shanghai Electrical Apparatus Research Institute (Group) Co., Ltd., Shanghai Branch Electric Motor Technology Co., Ltd. Tellhow shares Parts Limited, Harbin Institute of Electronics, Chinese Academy of Sciences appliances. The main drafters of this standard. Huang Lei, Kang Maosheng, Li Jialin Lin country first, Liu Lianlian. This standard replaces the standards previously issued as follows. --- GB/T 756-1965; --- GB/T 756-1979; --- GB/T 756-1990. Rotary motor cylindrical shaft extension

1 Scope

This standard specifies the rotating cylindrical shaft extension motor (hereinafter referred to as the shaft extension) dimensions and tolerances, keyway symmetry tolerance and selection requirements. This standard applies to the rotating motor shaft extension torque transmitting end, the shaft extension with a one-touch tank, and coupled with flat keys and slave and master machine. For without keyway, with double keyway and the use of other types of linkage to the shaft extension, the keyway dimensions and tolerances should be standard in this type of machine Make provision.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 1095-2003 flat key keyway cross-sectional dimension GB/T 1800.2-2009 Geometrical product specifications (GPS) limits and fits - Part 2. Standard tolerance grades and hole axis pole Limit deviation table 3-axis extending dimensions and tolerances 3.1 axis extending its basic size limit deviation shall conform to Table 1, the axis of elongation E Limit deviation using js14 (see GB/T 1800.2-2009). Shaft extension and cross-sectional structure shown in Figure 1. Figure 1 a schematic view of a cylindrical shaft extension ......

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