QB/T 2313-1997 Watch handle matching dimension series

This standard specifies the structural type and matching dimension series of integral watch handles. This standard applies to integral watch handles. QB/T 2313-1997 Matching dimension series of watch handles QB/T2313-1997 Standard download decompression password: www.bzxz.net

QB/T2313—1997
This standard is revised based on the original national standard GB4043—1983 "Watch handle matching size series". During the revision process, the relevant technical elements were adjusted and modified, and the format, structure and content of the standard were rearranged. The main differences between this standard and the original GB4043--1983 are: -- The writing format and expression method are implemented in accordance with GB/T1.11993% Standardization Work Guide Unit 1: Standard Drafting and Expression Rules Part 1: Basic Regulations for Standard Writing";
- Added Chapter 2 Reference Standards:
- Partial adjustments were made to Chapter 4 Matching Dimension Series. This standard was proposed by the Quality Standards Department of China Light Industry General Association. This standard is under the jurisdiction of the National Clock and Watch Standardization Center. The drafting unit of this standard: Dandong Watch Industry Company. The main drafters of this standard: Su Fusheng, Sheng Xiaohua. This standard shall replace GB4043-1983 from the date of implementation. 107
1 Scope
Light Industry Standard of the People's Republic of China
Watch Stem Fitting Dimension Series
This standard specifies the structural type and fitting dimension series of integral watch stems. This standard applies to integral watch stems. 2 Referenced StandardswwW.bzxz.Net
QB/T2313-1997
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T1803—1979 Tolerance and fit size to 18mm hole, shaft tolerance zone 3 Structural type
d Shaft neck diameter; d Square shaft outer diameter; d: — Fit diameter; d. Outer diameter; ds — Thread outer diameter ic — Square side length Figure 1
Fit size series and tolerance
4.1 Fit size series See Table 1.
Approved by China Light Industry General Association on September 1, 1997
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Implementation on May 1, 1998
QB/T2313—1997
d and ds
2 The tolerance zone code (see Table 2) and the upper and lower deviations of each size shall be implemented in accordance with GB/T1803. 4.2
Tolerance zone code
da and da
h7 or h8
h8 or h9
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