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BS ISO 6336-3:2006

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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Calculation of load capacity of spur and helical gears Calculation of tooth bending strength

Available format(s)

Hardcopy , PDF

Superseded date

24-12-2019

Language(s)

English

Published date

30-09-2008

Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviated
   terms
4 Tooth breakage and safety factors
5 Basic formulae
   5.1 Safety factor for bending strength
        (safety against tooth breakage), S[F]
   5.2 Tooth root stress, sigma[F]
   5.3 Permissible bending stress, sigma[FP]
6 Form factor, Y[F]
   6.1 General
   6.2 Calculation of the form factor, Y[F]: Method B
   6.3 Derivations of determinant normal tooth load
        for spur gears
7 Stress correction factor, Y[S]
   7.1 Basic uses
   7.2 Stress correction factor, Y[S]: Method B
   7.3 Stress correction factor for gears with notches
        in fillets
   7.4 Stress correction factor, Y[ST], relevant to the
        dimensions of the standard reference test gears
8 Helix angle factor, Y[beta]
   8.1 Graphical value
   8.2 Determination by calculation
9 Rim thickness factor, Y[B]
   9.1 Graphical values
   9.2 Determination by calculation
10 Deep tooth factor, Y[DT]
   10.1 Graphical values
   10.2 Determination by calculation
11 Reference stress for bending
   11.1 Reference stress for Method A
   11.2 Reference stress, with values sigma[F lim] and
        sigma[FE] for Method B
12 Life factor, Y[NT]
   12.1 Life factor, Y[NT]: Method A
   12.2 Life factor, Y[NT]: Method B
13 Sensitivity factor, Y[delta T], and relative notch
   sensitivity factor, Y[delta rel T]
   13.1 Basic uses
   13.2 Determination of the sensitivity factors
   13.3 Relative notch sensitivity factor, Y[delta rel T]:
        Method B
14 Surface factors, Y[R], Y[RT], and relative surface
   factor, Y[R rel T]
   14.1 Influence of surface condition
   14.2 Determination of surface factors and relative
        surface factors
   14.3 Relative surface factor, Y[R rel T]: Method B
15 Size factor, Y[X]
   15.1 Size factor, Y[X]: Method A
   15.2 Size factor, Y[X]: Method B
Annex A (normative) Permissible bending stress, sigma[FP],
                    obtained from notched, flat or plain
                    polished test pieces
Annex B (informative) Guide values for mean stress influence
                      factor, Y[M]
Bibliography

Describes the fundamental formulae for use in tooth bending stress calculations for involute external or internal spur and helical gears with a rim thickness s[R] > 0,5 h[t] for external gears and s[R] > 1,75 m[n] for internal gears.

Committee
MCE/5
DevelopmentNote
Supersedes 90/77564 DC. (03/2005) Supersedes 03/314804 DC. (10/2006)
DocumentType
Standard
Pages
52
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

Standards Relationship
ISO 6336-3:2006 Identical

BS 7905-1:2001 Lifting equipment for performance, broadcast and similar applications Specification for the design and manufacture of above stage equipment (excluding trusses and towers)
DEFSTAN 02-305/2(2003) : 2003 REQUIREMENTS FOR GEARING - MAIN PROPULSION
DEFSTAN 02-305/3(2010) : 2010 REQUIREMENTS FOR GEARING - MAIN PROPULSION

ISO 4287:1997 Geometrical Product Specifications (GPS) — Surface texture: Profile method — Terms, definitions and surface texture parameters
ISO 701:1998 International gear notation Symbols for geometrical data
VDI 2226:1965-07 Recommendation for the stability calculation of metallic building components
ISO 1328-1:2013 Cylindrical gears — ISO system of flank tolerance classification — Part 1: Definitions and allowable values of deviations relevant to flanks of gear teeth
ISO 6336-5:2016 Calculation of load capacity of spur and helical gears Part 5: Strength and quality of materials
ISO 6336-1:2006 Calculation of load capacity of spur and helical gears Part 1: Basic principles, introduction and general influence factors
ISO 53:1998 Cylindrical gears for general and heavy engineering Standard basic rack tooth profile
ISO 54:1996 Cylindrical gears for general engineering and for heavy engineering — Modules
AGMA 2001 : D FUNDAMENTAL RATING FACTORS AND CALCULATION METHODS FOR INVOLUTE SPUR AND HELICAL GEAR TEETH

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