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GB/Z 18620.4-2008Cylindrical gears - Code of inspection practice - Part 4: Reommendations relative to surface texture and tooth contact pattern checking (English PDF)

圆柱齿轮 检验实施规范 第4部分:表面结构和轮齿接触斑点的检验

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

March 31, 2008

Implementation date

March 31, 2008

Scope

GB/Z 18620.4-2008 is the English-translated version of 圆柱齿轮 检验实施规范 第4部分:表面结构和轮齿接触斑点的检验.

GB/Z 18620.4-2008, Part 4 of the Chinese code of inspection practice for cylindrical gears and identical to ISO/TR 10064-4:1998, gives recommendations for checking the surface texture of gear tooth flanks and the tooth contact pattern.

It covers functional considerations, the data to be shown on drawings, measuring instruments, the measurement of tooth flank roughness and the inspection of contact patterns, with an informative annex on controlling contact along the face width.

The values it gives are not strict accuracy criteria but a commonly agreed guide for steel and iron gears. Gear manufacturers and inspectors use it together with the GB/T 10095 accuracy system. It replaces GB/Z 18620.4-2002 and was issued on 31 March 2008.

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Document preview — GB/Z 18620.4-2008

National Standard of the People's Republic of China

ICS
21.200
Classification
J 17
Replacing
GB/Z 18620.4-2002

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Contents

  • Preface ISO Foreword
  • Introduction to ISO
  • 1 Scope
  • 2 Normative references
  • 3 symbols and definitions
  • 4 surface structure
  • 5 functional considerations
  • 6 should be marked on the data pattern
  • 7 measuring instruments
  • 8 gear tooth surface roughness measurement
  • Appendix A (Informative) Contact with the control of gear teeth tooth length direction with the precision
  • References

Foreword

GB /Z18620 "Cylindrical Gear Inspection Code of Practice" includes the following four parts.

--- Part 1. Inspection of the gear teeth on the same side;

--- Part 2. radial integrated deviation, radial runout, tooth thickness and backlash test;

--- Part 3. Gear billet, axis center distance and axis parallelism test;

--- Part 4. surface structure and gear tooth contact test. This part is the fourth part of GB /Z18620.

This section identical with ISO /T R10064-4..1998 "Cylindrical Gear Inspection Practices Part 4. Surface Structure and Gear Teeth Speckle Test Specified Documents "(in English).

This section is equivalent translation ISO /T R10064-4..1998. For ease of use, this section made the following editorial changes.

--- According to the Chinese habit of some layout format has been modified;

--- With the decimal point "." Instead of as a decimal point ",";

--- ISO /T R10064-4..1998 reference to other international standards, have been adopted as our standard, with our standard Instead of the corresponding international standards, has not been adopted as the equivalent of China's direct reference to international standards.

This section is the GB /Z18620.4-2002 "Cylindrical gear inspection specification Part 4. Surface structure and gear contact spot Point of inspection "of the amendment. Compared with GB /Z18620.4-2002, the main content is revised as follows.

--- Some of the terms of the text has been modified. Appendix A of this section is informative appendix.

1 Scope

This section provides recommendations on gear tooth surface roughness and gear tooth contact spot detection methods.

The numerical values provided in this section should not be used as a strict precision criterion, but as a common agreement on steel or iron gear guide to use.

2 Normative references

The provisions of the following documents through the GB /Z18620 of this part of the reference and become the provisions of this section. For dated references, All subsequent amendments (not including errata content) or revisions do not apply to this section, however, to encourage the agreement reached under this section The parties study whether the latest versions of these documents are available. For undated references, the latest version applies to this section.

GB/T 131-2006 Geometrical Product Specifications (GPS) Technical Product Documentation Representation of Surface Structures (ISO 1302.:2002, IDT)

GB/T 1356-2001 Standard machine and heavy machinery cylindrical gear standard basic rack profile (idt ISO 53.:1998)

GB/T 3480-1997 Involute cylindrical gear bearing capacity calculation (eqv ISO 6336.:1996)

GB/T 3505-2000 Geometrical product specifications - Surface structure - Profile method - Terms, definitions and parameters of surface structure Number (eqv ISO 4287.:1997)

GB/T 6062-2002 Geometrical product specifications (GPS) Surface texture Profile method Contact (stylus) type instrument nominal Characteristics (eqv ISO 3274.:1996)

GB/T 10095.1-2008 Cylindrical gears - Precision systems - Part 1. Definition and permissible values of gear tooth misalignment (ISO 1328-1.:1995, IDT)

GB/T 10095.2-2008 Cylindrical gears - Precision systems - Part 2. Definitions and allowable values of radial general deviation and radial runout (ISO 1328-2.:1997, IDT)

GB/T 10610-1998 Geometrical product specifications - Surface structure profilometry - Surface texture rules and methods Law (eqv ISO 4288.:1996)

GB /Z6413.1-2003 Cylindrical gears, bevel gears and hypoid gears - Calculation method for the combined bearing capacity - Part 1. Flash Temperature method (ISO /T R13989-1..2000, IDT)

GB /Z6413.2-2003 Cylindrical gears, bevel gears and hypoid gears - Determination of the load carrying capacity Part 2. Product Sub-temperature method (ISO /T R13989-2..2000, IDT)

ISO 11562.:1996 Geometrical Product Specifications (GPS) Surface Structures. Contour Methods Metrological Characteristics of Phase Correction Filters

ISO 13565-1.:1996 Geometrical Product Specifications (GPS) Surface Structures. Contour Methods Layered Functional Surfaces 1 Section.

ISO 13565-2.:1996 Geometrical Product Specifications (GPS) Surface Structures. Contour Methods Layered Functional Properties Surfaces Article 2 Section. Height characteristics of solid ratio curves using equivalent straight lines

3 Symbols and definitions

3.1 Symbol

The symbols used for the "total" deviation of a combination consist of capital letters (eg F) plus the corresponding subscripts. b c1 larger contact spot length% b c2 smaller contact spot length%

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 20 pages — is available in the English PDF.

Referenced standards

Normative references

GB/Z6413.1-2003 · GB/Z6413.2-2003 · ISO 11562 · ISO 13565-1 · ISO 13565-2

Similar standards

Editions of GB/Z 18620.4

EditionTitleRevisionStatus
GB/Z 18620.4-2008Cylindrical gears - Code of inspection practice - Part 4: Reommendations relative to surface texture and tooth contact pattern checkingcurrent editionCurrent
GB/Z 18620.4-2002Cylindrical gears - Code of inspection practice - Part 4: Reommendations relative to surface texture and tooth contact pattern checkingprevious editionSuperseded

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