GB/T 12613.7-2011 English PDF

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GB/T 12613.7-2011: Plain bearings -- Wrapped bushes -- Part 7: Measurement of wall thickness of thin-walled bushes
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 12613.7-2011	194	Add to Cart	3 days	Plain bearings -- Wrapped bushes -- Part 7: Measurement of wall thickness of thin-walled bushes	Valid

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Basic data

Standard ID: GB/T 12613.7-2011 (GB/T12613.7-2011)
Description (Translated English): Plain bearings -- Wrapped bushes -- Part 7: Measurement of wall thickness of thin-walled bushes
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J12
Classification of International Standard: 21.100.10
Word Count Estimation: 10,164
Date of Issue: 2011-12-30
Date of Implementation: 2012-10-01
Older Standard (superseded by this standard): GB/T 18330-2001
Quoted Standard: ISO 3547-1, ISO 4379
Adopted Standard: ISO 3547-7-2007, IDT
Regulation (derived from): Announcement of Newly Approved National Standards No. 23 of 2011
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 total wall thickness of thin-walled sleeve finished detection devices and methods of measurement.

GB/T 12613.7-2011: Plain bearings -- Wrapped bushes -- Part 7: Measurement of wall thickness of thin-walled bushes

---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.
. Plain bearings Wrapped bushes Part 7. Measurement of wall thickness of thin-walled bushes ICS 21.100.10 J12 National Standards of People's Republic of China Replacing GB/T 18330-2001 Plain bearings - Wrapped bushes Part 7. Measurement of wall thickness of thin-walled sleeve Part 7. Measurementofwalthicknessofthin-waledbushes (ISO 3547-7.2007, IDT) Issued on. 2011-12-30 2012-10-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 12613 "Plain bearings - hub" consists of the following seven parts. --- Part 1. Dimensions; --- Part 2. outside and inside diameter of the test data; --- Part 3. Lubrication holes, grooves and pockets; --- Part 4. Materials; --- Part 5. diameter test; --- Part 6. inner diameter of the test; --- Part 7. Measurement of wall thickness of thin-walled sleeve. This part of GB/T 12613 Part 7. This section drafted in accordance with GB/T 1.1-2009 given rules. This Part replaces GB/T 18330-2001 "thin-walled slide bearing bush and wall thickness measurement of thin-walled sleeve." And GB/T 18330- Compared to 2001, the main changes are as follows. --- Delete obsolete references in Chapter 2. --- Table 1. Remove the number of specimens symbols n, Measurement Uncertainty Uncertainty uE symbol symbols u, measuring equipment, for the first time with the first Difference [Delta] x symbol reading second measured value, Δx of this average [Delta] x; modified portion of the symbol. measuring the distance by the symbol "ac" change As "ach", wall thickness by the symbol "stot" to "s3". --- Choose to change the measuring line states. When measuring line, when the sleeve width is greater than 50mm, measured from the line of three to two;-point measurement, Sleeve width > 50mm, ≤90mm ≤150mm when an outer diameter measuring line to 2; sleeve width > 90mm and an outer Path > is 150mm, select the measuring line consensus by the manufacturer and user. --- Remove the wall thickness of ten-point measurement. --- Load measuring head by a "0.6N ~ 2N" to "0.8N ~ 2.5N". --- Delete "accuracy specification" clause (GB/T 18330-2001 7.3). --- Delete (GB/T 18330-2001 8.1) "uncertainty u calculated measure." --- Remove GB/T 18330-2001 Appendix A and Appendix B. This section uses the translation method identical with the international standard ISO 3547-7.2007 "Plain bearings - Wrapped bushes - Part 7. thin-walled shaft Sets of wall thickness measurement. " Consistency correspondence between this part of international documents and normative references of our files are as follows. --- GB/T 12613.1-2011 Plain bearings - Wrapped bushes - Part 1. Dimensions (ISO 3547-1.2006, IDT) --- GB/T 18324-2001 copper alloy sliding bearing bush (idt ISO 4379.1993) And ISO 3547-7.2007 as compared to this section made the following editorial changes. --- Equivalents adoption of international standards in place of the standard corresponding to international standards. This part is proposed by China Machinery Industry Federation. Bearing this in part by the National Standardization Technical Committee (SAC/TC236) centralized. This section is responsible for drafting unit. Productivity Promotion Center in the machine. Participated in the drafting of this section. Zhejiang Changsheng Sliding Bearings Co., Ltd., Zhejiang SF Oilless Bearing Co., Ltd., Zhejiang Bearing Co., Ltd., Bearing Co., Ltd. Jiashan Feng into three complex. This part of the standard replaces the previous editions are. --- GB/T 18330-2001. Plain bearings - Wrapped bushes Part 7. Measurement of wall thickness of thin-walled sleeve

1 Scope

GB/T 12613 in this section according to GB/T 27939-2011, provides total wall thickness of thin-walled sleeve finished detecting and measuring device method.

2 Normative references

The following documents for the use of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. ISO 3547-1 Plain bearings - Wrapped bushes - Part 1. Dimensions (Plainbearings-Wrappedbushes-Part 1. Dimensions) ISO 4379 copper alloy sliding bearing bush (Plainbearings-Copperaloybushes)

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Wall thickness walthickness, s3 The inner surface of the sleeve and the outer diameter surface corresponds to the diameter of the radial distance between the two measuring points. see picture 1. a) snap-sleeve b) straight seam sleeve Explanation. 1 --- buckle. Figure 1 wall thickness, s3 ......

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