HOME   Cart(0)   Quotation   About-Us Policy PDFs Standard-List
www.ChineseStandard.net Database: 189760 (25 Oct 2025)

GB/T 4997-2008 English PDF

US$529.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 4997-2008: General specification for permanent magnet low speed direct current tachogenerator
Status: Valid

GB/T 4997: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 4997-2008English529 Add to Cart 4 days [Need to translate] General specification for permanent magnet low speed direct current tachogenerator Valid GB/T 4997-2008
GB/T 4997-1993English759 Add to Cart 5 days [Need to translate] Permanent magnet low speed direct current tachogenerator. General specification for Obsolete GB/T 4997-1993

PDF similar to GB/T 4997-2008


Standard similar to GB/T 4997-2008

GB/T 1032   GB/T 39631   JB/T 9542   GB/T 8128   GB/T 7344   GB/T 2658   

Basic data

Standard ID GB/T 4997-2008 (GB/T4997-2008)
Description (Translated English) General specification for permanent magnet low speed direct current tachogenerator
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard K24
Classification of International Standard 29.160.20
Word Count Estimation 23,279
Date of Issue 2008-06-13
Date of Implementation 2009-03-01
Older Standard (superseded by this standard) GB/T 4997-1993
Regulation (derived from) Announcement of Newly Approved National Standards No. 10 of 2008 (total 123)
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 low-speed permanent magnet DC tachometer generator model and frame size, operating conditions, technical requirements and test methods, test conditions, test rules and ready for delivery. This standard applies to low-speed permanent magnet DC tachometer generator. This standard should speed permanent magnet DC tachometer generator (hereinafter referred to as the motor) product-specific technical conditions together.

GB/T 4997-2008: General specification for permanent magnet low speed direct current tachogenerator


---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.
General specification for permanent magnet low speed direct current tachogenerator ICS 29.160.20 K24 National Standards of People's Republic of China Replacing GB/T 4997-1993 DC Permanent Magnet Low Speed Tachometer generator General technical conditions Posted 2008-06-13 2009-03-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Preface Ⅰ 1 Scope 1 2 Normative references 1 Frame 1 and Type 3 4 1 Operating Conditions 5 Technical requirements and test methods 2 6 Test conditions 8 7 Inspection rules 9 8 delivered ready 11 Appendix A (informative) Model 13 A. 1 model named 13 A. 2 Frame 13 A. 3 Product Code 13 A. 4 Performance Parameters Code 13 A. 5 Derived Code 13 Annex B (informative) low-speed permanent magnet generator DC tachometer technical performance parameters 14 Annex C (informative) Alnico motor recommended shape and installation dimensions 15 C. 1 Alnico dispensing motor 15 C. 2 Alnico motor assembly 16 Annex D (informative) Alnico motor recommended shape and installation dimensions 19

Foreword

This standard replaces GB/T 4997-1993 "low speed permanent magnet DC tachometer generator General technical conditions." Compared with GB/T 4997-1993 The main changes are as follows. --- According to GB/T 1.1-2000. provisions "Standardization Guide Part 1 standard structure and write rules," and in order to With the relevant harmonized standards, in terms of choreography on a relatively large adjustment; --- Standard frame sizes expanded coverage, expanded from 55 to 750 ~ 320-45. The Standard Appendix A, Appendix B, Appendix C, Appendix D is an informative annex. The standard proposed by China Electrical Equipment Industrial Association. This standard by the National Standardization Technical Committee micromotor (SAC/TC2) centralized. This standard was drafted. precision motor factory in Chengdu, Xi'an Institute of micro-motors. The main drafters of this standard. Hubo Cheng, Zouhui Bin, Zhao Donghong, Chow and the like. This standard replaces the standards previously issued as follows. --- GB 4997-1985; --- GB/T 4997-1993. DC Permanent Magnet Low Speed Tachometer generator General technical conditions

1 Scope

This standard specifies the frame size and type permanent magnet dc low-speed generator operating conditions, technical requirements and test methods, test Condition, inspection rules and delivery preparation. This standard applies to low-speed permanent magnet DC tachometer generator. This standard should be low-speed permanent magnet DC tachometer generator (hereinafter referred to as motors) used with the product-specific technical requirements.

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 2828.1 Sampling procedures for inspection - Part 1. by acceptance quality limit (AQL) retrieval batch inspection sampling plan (GB/T 2828.1-2003, ISO 2859-1.1999, IDT) GB/T 7345 motor control basic technical requirements GB/T 7346 motor control basic shape structure type GB/T 10405 control motor type designation JB/T 8162-1999 motor control packaging technology conditions

3 models and frame sizes

3.1 Model Motor model name should be consistent with the provisions of GB/T 10405 or refer to Appendix A (informative) specified by the product-specific technical requirements. 3.2 Frame The standard motor is mounted points as the basic installation type, frame size and the corresponding base outside diameter as specified in Table 1. Table 1 millimeters Frame 45 557,090,130,160,200 250,320,430,560,600 750 Aliquot motor frame outer diameter of 45 557,090,130,160,200 250,320,430,560,600 750 Assembled motor frame outer diameter of 55 7,085,105,150,180,220,270 350 - - - -

4 Operating Conditions

4.1 Use of environmental conditions Environmental conditions of the motor should be selected or defined by the product-specific technical requirements in conditions GB/T 7345 provisions of. 4.2 Electrical Schematic 1 shows a circuit diagram of FIG. Figure 1

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 4997-2008_English be delivered?

Answer: Upon your order, we will start to translate GB/T 4997-2008_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 4997-2008_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 4997-2008_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 [email protected]. 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.

Question 5: Should I purchase the latest version GB/T 4997-2008?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 4997-2008 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.