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GB/T 18842-2008 English PDF

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GB/T 18842-2008: Taper cylindrical involute splines
Status: Valid

GB/T 18842: Evolution and historical versions

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB/T 18842-2008	English	329	Add to Cart	3 days [Need to translate]	Taper cylindrical involute splines	Valid	GB/T 18842-2008
GB/T 18842-2002	English	559	Add to Cart	4 days [Need to translate]	Taper cylindrical involute splines	Obsolete	GB/T 18842-2002

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Basic data

Standard ID	GB/T 18842-2008 (GB/T18842-2008)
Description (Translated English)	Taper cylindrical involute splines
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	J18
Classification of International Standard	21.120.30
Word Count Estimation	14,124
Date of Issue	2008-09-27
Date of Implementation	2009-05-01
Older Standard (superseded by this standard)	GB/T 18842-2002
Quoted Standard	GB/T 1800.1; GB/T 3478.1-2008; GB/T 15758
Regulation (derived from)	National Standard Approval Announcement 2008 No.16 (Total No.129)
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 cone straight involute splines (hereinafter referred to as spline) terms, Code and definitions, calculated size, dimension series, tolerance level and with class, tolerance, parameter annotation, tables and other test methods and dimensions content. This standard applies to internal spline tooth straight, external spline tooth involute, standard pressure angle of 45 ��, modulus of 0. 50mm ~ 1. 50mm straight teeth and a conical taper 1: 15 involute splines.

GB/T 18842-2008: Taper cylindrical involute splines

---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.
Taper cylindrical involute splines ICS 21.120.30 J18 National Standards of People's Republic of China Replacing GB/T 18842-2002 Straight bevel involute splines Posted 2008-09-27 2009-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Preface Ⅰ 1 Scope 1 2 Normative references 1 3 Terms, symbols and definitions 1 4 size calculation 2 5 Dimensions Series 3 6 tolerance levels and with Category 4 Tolerance 4 7 8 parameters marked 5 9 Test Method 6 Size 10 Table 6

Foreword

This standard is GB/T 18842-2002 "straight bevel involute spline" amendments. This standard compared with GB/T 18842-2002 main changes are as follows. --- According to GB/T 1.1-2000 requirements were modified editorial; --- Table 2, "The role of space width maximum EVmax = EVmin-λ" to "EVmax = Emax-λ"; --- Table 2 FOREIGN spline involute starting circle maximum formula "2" to "2 ×", "Dh" to "Db"; --- Table 8, "The role of the maximum tooth thickness 1.606" to "the role of the maximum tooth thickness of 1.660"; --- Table 8, "The role of the minimum tooth thickness 1.660" to "the role of minimum tooth thickness of 1.606"; --- Table 8 "6H GB/T 18842-2002" to "6k GB/T 18842-2008"; --- Table 9 to Table 13 "internal splines maximum actual space width" to "minimum effective space width EVmin = 0.5πm". This standard by the National Standardization Technical Committee axis machines and accessories and focal points. This standard was drafted. Mechanical Science Research Institute of Machine Productivity Promotion Center, Harbin Dongan Engine Co., Ltd, China's first FAW Group Corporation. The main drafters of this Standard. Chui Ming new, Chang Po-printing, giant Jianhui, Deng Takami. This standard replaces the standards previously issued as follows. --- GB/T 18842-2002. Straight bevel involute splines

1 Scope

This standard specifies the straight bevel involute splines (hereinafter referred to as splines) terminology, symbols and definitions, dimensions calculation formula, the size of the Department Column, tolerance level and fits the category, tolerances, annotation parameters, test methods and the size of the table and so on. This standard applies to internal spline tooth as a straight line, the external spline tooth involute, standard pressure angle of 45 °, modulus of 0.50mm ~ 1.50mm straight teeth and a conical taper 1.15 involute splines.

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. Part 1 GB/T 1800.1 Geometrical product specifications (GPS) Limits and fits. Tolerances, deviations and fits basis (GB/T 1800.1-2008, ISO 286-1. 1988, MOD) GB/T 3478.1-2008 Straight cylindrical involute splines (Metric module, side fit) - Part 1. General (ISO 4156-1.2005, MOD) GB/T 15758 spline basic terms 3 Terms, symbols and definitions 3.1 spline common terminology and definitions, see GB/T 15758. 3.2 spline special terminology, symbols and definitions Figure 1 and Figure 2. The following terms and definitions apply to this standard. 3.2.1 Provisions spline parameters, dimensions and tolerances of the end of the plane. Predetermined position of the base surface of the outer splines small end, and with the design of a given internal splines Base surface coincide. 3.2.2 Trail conical surface and spline shaft plane intersection line. 3.2.3 Internal splines same acute angle on both sides of the toothed gullet sandwiched. 3.2.4 Internal and external spline tapered spline axis pixel lines and sandwiched acute angle. 3.2.5 Distance from the base end to end spline small plane to.

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