GB/T 1804-2000 English PDF (GBT1804-2000)

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GB/T 1804-2000: General tolerances - Tolerances for linear and angular dimensions without individual tolerance indications
GB/T 1804-2000
General tolerances Tolerances for linear and angular dimensions without individual tolerance indications
JlCS 17.040.10
J D4 GB
National Standards of People's Republic of China
General tolerances
GB /1 '1804- 2000
eqv JlSO 2768-1. 1989
No individual tolerance of linear and angular dimensions tolerance
General tolerances
1Lolerances for linear and angular dimensions
without individual tolerance indications
2000--07--24 Post
2000-12--01 implementation
State Quality and Technical Supervision published
GB /D 1804-2GGO
Foreword
This standard is based on international standards ISO 2768-1. 1 98 9 (E) ((General tolerances - Part 1. Not a single note out of linear and angular lambs
Where the degree of tolerance inch)) (1989-11-15 first version l) of GB/T 1804-1 992 ((general tolerances inch line sad children without individual tolerance "
. "Equivalent to the international standard Gß/T 11 335-1989 ((not note tolerance limit deviation angle" revision of technical content.
Thus, our country is not NOTE tolerances General tolerances as standard with the international agreement or equivalent, to accommodate international trade as soon as possible,
Technical and economic exchanges and the adoption of international standards required a leap of development.
The original standard GB/T 1804 and GB/T 11 335 increase compared to the reference standards, definitions, general and determined four chapters, and
The standard name for f changes.
This standard from the date of implementation, at the same time instead of GB/T 1 804-1992, GB/T 11335-1989 0
Appendix A of this standard is an informative annex.
; This standard L indiscriminately home Mountain Machinery Industry Bureau.
This standard dimensions and geometry of the National Technical Committee of Standardization Technical Specification.
This standard was drafted. Mechanical Science lock | study hospital.
The main drafters of this standard. Lixiao Pei, Yu Hanqing.
GB /D 1804-2GGO
Foreword ISO
lS0 (International Organization for Standardization) is the world is organized jointly by national standards bodies (lS0 member bodies) Wai. International standard
1S0 drafting general by the technical committees to complete. Each member of the task group has been set up technical committees sense Hing
Fun, right to be represented among job. And lS0 linked government or non-governmental international organizations, but also participate in the work. lS0 and from
Things Electrotechnical Standardization International Electrotechnical Commission (TEC) have close cooperation.
Before the approval of the Council lS0 as an international standard, draft international standard adopted by the technical committee shall be subject to the member bodies for voting by correspondence
vote. 1S0 according to guidelines, there must be more than 75% of the member bodies skill votes before they passed.
LS0 2768-} by the international standard lS0/TC3 "limits and fits" the Technical Committee drafting. The lS0 2768 -} (first edition) and lS0
2768-2 together instead of 1S0 2768. 1 9 73.
IS0 2768 under the "general tolerances" main title, consists of the following components.
Part l. not separately pouring linear and angular dimensions tolerance tolerance
Part 2. Not a single note out of tolerance feature geometrical tolerances
IS0 2768 this part of Appendix A is an informative annex.
range
National Standards of People's Republic of China
General tolerances
No individual tolerance of linear and angular dimensions tolerance
General tolerances
Tolerances for linear and angular dimensions
without individual tolerance indications
eqv ISO 2768-1. 1989
Generation Division (marsh/D 18 () [--1992
GB /D 11335-1989
This standard specifies the tolerances are not pouring out of line elements and angular dimensions General tolerance tolerance level rent limit deviation value.
This standard applies to metal cutting size, but also for the general size of the press working. Non-metallic materials and other methods work ι
Machining dimensions called reference use.
This standard applies only to the following non-injection tolerance dimensions.
a) Line sad dimension (such as outside dimensions, inside dimensions, the step size, diameter, radius, distance, rounding radius and chamfer height);
b) angular dimensions, including not usually spout angle Qiao angular dimensions, such as right-angle (900); GB/T 11 84 mentioned polygon or the like
Except for angle;
c) machining assembly of linear and angular dimensions.
This standard does not apply to the following dimensions.
a) other general line tolerances involved 'liver and angular dimensions;
b) in brackets refer to size;
c) the theory of the correct size within a rectangular grid.
2 References
The following standards contain provisions by; constitute provisions of the standard reference in this standard. At the time of publication, the editions are not
Valid. All standards are subject to revision, the standard parties should explore the possibility of using the latest version of the following standards.
GB/T 18 () () 1-1 997 limits and fits - Bases - Part 1. 11 words.
Gß/T 11 84- 1996 shape and position tolerances without individual tolerance value (Pat qv IS0 2768- 2. 1989)
Gß/T 4249-1996 tolerance principle Ceqv IS0 8015. 1985)
Gß/T 6403.4-1986 Part inverted solid chamfer
3 Definitions
3.1 Standard, GB/T 18C (). Terms and definitions given in 1.
3.2 General tolerances gcncral tDlcranccs
Refers to the shop typically processing conditions can guarantee tolerances. Using the general tolerances of size, after which its size without limit deviation Note
Value.
Note. do not mention Appendix Appendix AC) gives f show the general public the concept and interpretation.
Quality and Technical Supervision 2000--07--24 approved 2000-12--01 implementation
Gß/T 1804 2000
4 General
When you select not note tolerance of size on the general pattern of tolerance tolerance level should be considered a normal workshop accuracy by the relevant technical documents
Standard parts or specific provisions.
For any single dimension, such as functional "requires a smaller tolerance than the general tolerances allow for greater tolerance or well more economical, its corresponding
To limit deviations spout in the relevant basic size.
Using the same or related technical documents This standard specifies the general public the difference between linear and angular dimensions, should be the standard of Chapter 6
Labeling provisions.
No individual tolerance dimensions both surfaces of different types of processes (for example, cutting and casting) are processed to form between the two should be required
General tolerance values umbrella of a larger system of Plato.
In general tolerances specified angle control unit only watch the rain line or the total square pixel lines | sentence, do not control their shape errors. From the actual tables
The overall direction of the line obtained is the ideal geometry of the contact line direction. The maximum distance between the contact line and the head 'hairline between the smallest possible value (see
Gß/T 1219).
5 General tolerances tolerance grades and limit deviation value
General tolerances points precision f, medium m, rough c, most with a total of 4 v tolerance level. By not note tolerance of linear and angular dimensions points
Do not give the value of each limit deviation tolerance levels.
5.1 linear dimension
Table 1 shows the number of linear dimension limit deviations primary; Table 2 shows the rounding radius a...