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GB/T 13576.4-2008: Buttress threads with the flank angles of 3 and 30 degrees -- Part 4: Tolerances
Status: Valid GB/T 13576.4: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 13576.4-2008 | English | 369 |
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Buttress threads with the flank angles of 3 and 30 degrees -- Part 4: Tolerances
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GB/T 13576.4-2008
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| GB/T 13576.4-1992 | English | 599 |
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Buttress threads with 3 and 30 degrees flank angle-Tolerances
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GB/T 13576.4-1992
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PDF similar to GB/T 13576.4-2008
Basic data | Standard ID | GB/T 13576.4-2008 (GB/T13576.4-2008) | | Description (Translated English) | Buttress threads with the flank angles of 3 and 30 degrees -- Part 4: Tolerances | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J04 | | Classification of International Standard | 21.040.30 | | Word Count Estimation | 16,120 | | Date of Issue | 2008-07-30 | | Date of Implementation | 2009-02-01 | | Older Standard (superseded by this standard) | GB/T 13576.4-1992 | | Quoted Standard | GB/T 1800.3-1998; GB/T 13576.1; GB/T 13576.2; GB/T 14791 | | Regulation (derived from) | National Standard Approval Announcement 2008 No.12 (Total No.125) | | 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 tolerances and serrated thread. Serrated teeth and diameter and thread pitch series conform to the provisions of GB/T 13576. 1 and GB/T 13576. 2's. This section applies to general purpose mechanical transmission and serrated fastening screw connection. | GB/T 13576.4-2008: Buttress threads with the flank angles of 3 and 30 degrees -- Part 4: Tolerances---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.
Buttress threads with the flank angles of 3 and 30 degrees Part 4. Tolerances
ICS 21.040.30
J04
National Standards of People's Republic of China
Replacing GB/T 13576.4-1992
Serrated (3 °, 30 °) Thread
Part 4. Tolerances
Posted 2008-07-30
2009-02-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 13576 "zigzag (3 °, 30 °) thread" is divided into four parts.
--- Part 1. tooth type;
--- Part 2. pitch diameter series;
--- Part 3. basic dimensions;
--- Part 4. tolerances.
This section GB/T Part of 413,576.
This Part replaces GB/T 13576.4-1992 "zigzag (3 °, 30 °) Thread tolerance."
This section compared with the GB/T 13576.4-1992, major technical changes as follows.
--- This section diameter within the old standard thread tolerance position A to H (1992 Edition Chapter 3; Chapter 4 of this edition);
--- The older section adds a standard external thread diameter tolerance position e (1992 Edition Chapter 3; Chapter 4 of this edition);
--- This section of the old standard in Appendix B (large diameter centering tolerance value, the reference member) moved into the body of the standard content, delete the old standard
Table 3 (3rd edition, 1992 and Appendix B; Chapter 4 of this edition);
--- The partial modification of the recommended tolerance zone of the old standards required (1992 edition, Chapter 7; Chapter 6 of this edition);
--- In the thread marks, this section does not allow specific labeling screwing length value, and the old standards can be labeled specific number of screwing length
Value (1992 edition Chapter 6; edition Chapter 8);
--- This section of the old standard in Appendix A (fundamental deviations and tolerance formula, the reference member) moved content standard text (1992 edition
Appendix A; Chapter 9 of this edition).
This part of the National Standardization Technical Committee thread (SAC/TC108) and focal points.
This section is drafted. the machine Productivity Promotion Center.
The main drafters of this section. Li Xiaobin.
This part of the standard replaces the previous editions are.
--- GB/T 13576.4-1992.
Serrated (3 °, 30 °) Thread
Part 4. Tolerances
1 Scope
GB/T 13576 provisions of this part tolerances and serrated thread. Serrated tooth type and the diameter of the thread pitch the series points
Do not comply with GB/T 13576.1 and GB/T 13576.2 of.
This section applies to general purpose mechanical transmission and fastened serrated threaded connections.
2 Normative references
The following documents contain provisions which, through reference GB/T 13576 in this section constitute provisions of this section. For dated reference documents
Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section
Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this
section.
GB/T 1800.3-1998 Limits and fits - Bases - Part 3. standard tolerances and fundamental deviations in the value table (eqv ISO 286-1.
1988)
GB/T 13576.1 zigzag (3 °, 30 °) threads - Part 1. tooth type
GB/T 13576.2 zigzag (3 °, 30 °) Thread Part 2. diameter and pitch series
GB/T 14791 threads term (GB/T 14791-1993, neq ISO 5408. 1983)
3 Terms and Code
3.1 Terms and Definitions
Terms and definitions GB/T 14791 stipulated applies to GB/T 13576 in this section.
3.2 Code
D --- threaded tooth design type on the basic of the large diameter;
D2 --- internal thread tooth type design on the basic diameter;
D1 --- trails basic internal thread tooth type on;
P --- pitch;
N --- Medium screwing length group;
L --- long screwing length group;
T --- tolerance;
TD --- threaded large diameter tolerance
TD2 --- internal thread diameter tolerance;
TD1 --- threaded trails tolerance;
Td --- large diameter external thread tolerance;
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