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BS ISO 6336-1:2006

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Calculation of load capacity of spur and helical gears Basic principles, introduction and general influence factors
Available format(s)

Hardcopy , PDF

Superseded date

01-12-2023

Language(s)

English

Published date

09-30-2008

Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviated terms
4 Basic principles
  4.1 Application
      4.1.1 Scuffing
      4.1.2 Wear
      4.1.3 Micropitting
      4.1.4 Plastic yielding
      4.1.5 Particular categories
      4.1.6 Specific applications
      4.1.7 Safety factors
      4.1.8 Testing
      4.1.9 Manufacturing tolerances
      4.1.10 Implied accuracy
      4.1.11 Other considerations
      4.1.12 Influence factors
      4.1.13 Numerical equations
      4.1.14 Succession of factors in course of calculation
      4.1.15 Determination of allowable values of gear deviations
  4.2 Tangential load, torque and power
      4.2.1 Nominal tangential load, nominal torque and nominal
             power
      4.2.2 Equivalent tangential load, equivalent torque and
             equivalent power
      4.2.3 Maximum tangential load, maximum torque and maximum
             power
5 Application factor K[A]
  5.1 Method A - Factor K[A-A]
  5.2 Method B - Factor K[A-B]
6 Internal dynamic factor K[v]
  6.1 Parameters affecting internal dynamic load and calculations
      6.1.1 Design
      6.1.2 Manufacturing
      6.1.3 Transmission perturbance
      6.1.4 Dynamic response
      6.1.5 Resonance
  6.2 Principles and assumptions
  6.3 Methods for determination of dynamic factor
      6.3.1 Method A - Factor K[v-A]
      6.3.2 Method B - Factor K[v-B]
      6.3.3 Method C - Factor K[v-C]
  6.4 Determination of dynamic factor using Method B: K[v-B]
      6.4.1 Running speed ranges
      6.4.2 Determination of resonance running speed (main
             resonance) of a gear pair
      6.4.3 Dynamic factor in subcritical range (N <= N[S])
      6.4.4 Dynamic factor in main resonance range
             (N[S] < <= 1,15)
      6.4.5 Dynamic factor in supercritical range (N >= 1,5)
      6.4.6 Dynamic factor in intermediate range (1,15 < N < 1,5)
      6.4.7 Resonance speed determination for less common
             gear designs
      6.4.8 Calculation of reduced mass of gear pair with
             external teeth
  6.5 Determination of dynamic factor using Method C: K[v-C]
      6.5.1 Graphical values of dynamic factor using Method C
      6.5.2 Determination by calculation of dynamic factor
             using Method C
7 Face load factors K[H beta] and K[F beta]
  7.1 Gear tooth load distribution
  7.2 General principles for determination of face load
      factors K[H beta] and K[F beta]
      7.2.1 Face load factor for contact stress K[H beta]
      7.2.2 Face load factor for tooth root stress K [F beta]
  7.3 Methods for determination of face load factor - Principles,
      assumptions
      7.3.1 Method A - Factors K[H beta-A] and K[F beta-A]
      7.3.2 Method B - Factors K[H beta-B] and K[F beta-B]
      7.3.3 Method C - Factors K[H beta-C] and K[F beta-C]
  7.4 Determination of face load factor using Method B:
      K[H beta-B]
      7.4.1 Number of calculation points
      7.4.2 Definition of K[H beta]
      7.4.3 Stiffness and elastic deformations
      7.4.4 Static displacements
      7.4.5 Assumptions
      7.4.6 Computer program output
  7.5 Determination of face load factor using Method C:
      K[H beta-C]
      7.5.1 Effective equivalent misalignment F[beta y]
      7.5.2 Running-in allowance y[beta] and running-in
             factor chi[beta]
      7.5.3 Mesh misalignment, f[ma]
      7.5.4 Component of mesh misalignment caused by case
             deformation, f[ca]
      7.5.5 Component of mesh misalignment caused by shaft
             displacement, f[be]
  7.6 Determination of face load factor for tooth root stress
      using Method B or C: K[F beta]
8 Transverse load factors K[H alpha] and K[F alpha]
  8.1 Transverse load distribution
  8.2 Determination methods for transverse load
      factors - Principles and assumptions
      8.2.1 Method A - Factors K[H alpha-A] and K[F alpha-A]
      8.2.2 Method B - Factors K[H alpha-B] and K[F alpha-B]
  8.3 Determination of transverse load factors using Method
      B - K[H alpha-B] and K[F alpha-B]
      8.3.1 Determination of transverse load factor by
             calculation
      8.3.2 Transverse load factors from graphs
      8.3.3 Limiting conditions for K[H alpha]
      8.3.4 Limiting conditions for K[F alpha]
      8.3.5 Running-in allowance y[alpha]
9 Tooth stiffness parameters c' and c[gamma]
  9.1 Stiffness influences
  9.2 Determination methods for tooth stiffness
      parameters - Principles and assumptions
      9.2.1 Method A - Tooth stiffness parameters c'[A]
             and c[gamma-A]
      9.2.2 Method B - Tooth stiffness parameters c'[B]
             and c[gamma-B]
  9.3 Determination of tooth stiffness parameters c' and
            c[gamma] according to Method B
      9.3.1 Single stiffness, c'
      9.3.2 Mesh stiffness, c[gamma]
Annex A (normative) Additional methods for determination
                    of f[sh] and f[ma]
Annex B (informative) Guide values for crowning and end
                      relief of teeth of cylindrical gears
Annex C (informative) Guide values for K[H beta-C] for
                      crowned teeth of cylindrical gears
Annex D (informative) Derivations and explanatory notes
Annex E (informative) Analytical determination of load
                      distribution
Bibliography

Provides the basic principles of, an introduction to, and the general influence factors for, the calculation of the load capacity of spur and helical gears.

Committee
MCE/5
DevelopmentNote
Supersedes 83/71789 DC. (07/2005) Supersedes 04/30126837 DC (11/2006)
DocumentType
Standard
Pages
120
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

Standards Relationship
ISO 6336-1:2006/Cor 1:2008 Identical
ISO 6336-1:2006 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 6336-2:2006 Calculation of load capacity of spur and helical gears Part 2: Calculation of surface durability (pitting)
ISO 701:1998 International gear notation Symbols for geometrical data
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 6336-3:2006 Calculation of load capacity of spur and helical gears Part 3: Calculation of tooth bending strength
ISO 6336-5:2016 Calculation of load capacity of spur and helical gears Part 5: Strength and quality of materials
ISO 53:1998 Cylindrical gears for general and heavy engineering Standard basic rack tooth profile
ISO 6336-6:2006 Calculation of load capacity of spur and helical gears Part 6: Calculation of service life under variable load
ISO 54:1996 Cylindrical gears for general engineering and for heavy engineering — Modules
ISO/TR 10064-1:2017 Code of inspection practice Part 1: Measurement of cylindrical gear tooth flanks
AGMA 2001 : D FUNDAMENTAL RATING FACTORS AND CALCULATION METHODS FOR INVOLUTE SPUR AND HELICAL GEAR TEETH

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