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GB/T 21940-2008 English PDF

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GB/T 21940-2008: Earth-moving machinery -- Cutting edges used on tractor-dozers, graders and scrapers -- Principal shapes and basic dimensions
Status: Valid

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB/T 21940-2008	English	209	Add to Cart	3 days [Need to translate]	Earth-moving machinery -- Cutting edges used on tractor-dozers, graders and scrapers -- Principal shapes and basic dimensions	Valid	GB/T 21940-2008

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Basic data

Standard ID	GB/T 21940-2008 (GB/T21940-2008)
Description (Translated English)	Earth-moving machinery -- Cutting edges used on tractor-dozers, graders and scrapers -- Principal shapes and basic dimensions
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	P97
Classification of International Standard	53.100
Word Count Estimation	9,961
Date of Issue	2008-06-03
Date of Implementation	2009-01-01
Quoted Standard	GB/T 8498
Adopted Standard	ISO 7129-1997, MOD
Regulation (derived from)	National Standard Approval Announcement 2008 No.9 (Total No.122)
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 shape of the blade cross -section of the main and basic dimensions, -installation location of bolt holes, -mounting bolt hole shapes and sizes. This standard applies to bulldozers GB/T 8498 defined, motor graders and scrapers. Consider the size of the blade used interchangeability requirements.

GB/T 21940-2008: Earth-moving machinery -- Cutting edges used on tractor-dozers, graders and scrapers -- Principal shapes and basic dimensions

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Earth-moving machinery. Cutting edges used on tractor-dozers, graders and scrapers. Principal shapes and basic dimensions ICS 53.100 P97 National Standards of People's Republic of China Earthmoving machinery bulldozers, graders and scrapers The main blade shapes and basic dimensions (ISO 7129.1997, MOD) Posted 2008-06-03 2009-01-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This revised standard adopts ISO 7129.1997 "earthmoving machinery bulldozers, graders and scrapers and the basic shape with a blade main ruler Inch "(in English). This standard is based on ISO 7129.1997 re-drafted. This standard is based on the actual application and taking into account China's national conditions, in the use of ISO 7129.1997 when some modifications. This standard And ISO 7129.1997 Differences exist as follows. --- Chapter 1 Cancel "Note. Some imperial values \u200b\u200bare not equivalent to the corresponding metric values \u200b\u200bused in this International Standard, as these are already Widely used value. "; Unit --- canceled dimension values \u200b\u200bcorresponding to inch units and value; --- References ISO 6165.1997 to GB/T 8498 (ISO 6165.2006, IDT); --- Canceled Appendix A "major pitch 140mm and 280mm blade shape and basic dimensions"; --- Table 1, Table 2, Table 3, Table 4 and 4.1 were canceled "Note. The pitch of 140mm and 280mm blade shape and size of the provisions of In Appendix A. "; --- Table 1, the thickness of 12.7,25.4 and 28.6 to 12.7 (13) 25.4 (25) 28.6 (28), Table 2, the thickness 19 to 19 (20), and add "NOTE. You can use the size brackets"; --- Table 4 inch diameter threaded bolt with reference to the series of the thread series. For ease of use, this standard also made the following editorial changes. --- "This International Standard" be replaced by "this standard"; --- Instead of using the decimal point as a decimal point ",". ","; --- Remove the foreword to international standards. Since the implementation of this standard, JB/T 2648.1-1995 "main shape bulldozers, scrapers and graders blades and basic foot Inch "shall be repealed simultaneously. The standard proposed by China Machinery Industry Federation. This standard by the national earthmoving machinery Standardization Technical Committee (SAC/TC334) centralized. This standard was drafted. Tianjin Construction Machinery Research Institute. Drafters of this standard. Wu Yun Cai, Chen Shu Qiao. This standard is the first release. Earthmoving machinery bulldozers, graders and scrapers The main blade shapes and basic dimensions

1 Scope

This standard specifies. --- Main blade cross-sectional shape and basic dimensions; --- Mounting bolt hole location; --- Mounting bolt hole shapes and sizes. This standard applies to GB/T 8498, as defined in the bulldozers, graders and scrapers, used to consider the size of the blade interchangeability Claim.

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 8498 Earth - moving machinery - Basic types - Identification and terms and definitions (GB/T 8498-2008, ISO 6165.2006, IDT) Principal shapes and basic dimensions of the cross section of the blade 3 Principal shapes and basic dimensions of the blade cross section in Figure 1, the provisions of Table 1, Figure 2 and Table 2.

1 bulldozer and scraper blade main shape

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