NF ISO 18653

NF ISO 18653

March 2004
Standard Current

Gears - Evaluation of instruments for the measurement of individual gears

ISO 18653:2003 specifies methods for the evaluation of measuring instruments used for gear measurements of involute, helix, pitch and runout. It is applicable both to instruments that measure runout directly and to those that compute it from index measurements. It also gives recommendations for the evaluation of tooth thickness measuring instruments and, of necessity, includes the estimation of measurement uncertainty with the use of calibrated gear artifacts. It does not address the calibration of artifacts by laboratories accredited in accordance with ISO 17025; nor are its requirements intended as an acceptance specification of product gears (see ISO 1328-1, ISO 1328-2, ISO/TR 10064-1 and ISO/TR 10064-2). The estimation of product gear measurement uncertainty is beyond its scope (see ISO/TR 10064-5 for recommendations).

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Main informations

Collections

National standards and national normative documents

Publication date

March 2004

Number of pages

24 p.

Reference

NF ISO 18653

ICS Codes

21.200   Gears

Classification index

E23-037

Print number

1 - 30/03/2004

International kinship

ISO 18653:2003
Sumary
Gears - Evaluation of instruments for the measurement of individual gears

ISO 18653:2003 specifies methods for the evaluation of measuring instruments used for gear measurements of involute, helix, pitch and runout. It is applicable both to instruments that measure runout directly and to those that compute it from index measurements. It also gives recommendations for the evaluation of tooth thickness measuring instruments and, of necessity, includes the estimation of measurement uncertainty with the use of calibrated gear artifacts. It does not address the calibration of artifacts by laboratories accredited in accordance with ISO 17025; nor are its requirements intended as an acceptance specification of product gears (see ISO 1328-1, ISO 1328-2, ISO/TR 10064-1 and ISO/TR 10064-2). The estimation of product gear measurement uncertainty is beyond its scope (see ISO/TR 10064-5 for recommendations).

Table of contents
  • Avant-propos
    iv
  • 1 Domaine d'application
    1
  • 2 Références normatives
    1
  • 3 Termes, définitions et symboles
    1
  • 4 Application
    4
  • 4.1 Généralités
    4
  • 4.2 Traçabilité
    4
  • 4.3 Artefacts
    4
  • 4.4 Incertitude de mesure
    5
  • 4.5 Sources d'incertitude
    5
  • 4.6 Intervalle d'évaluation
    6
  • 5 État du système de mesure
    6
  • 5.1 Caractéristiques du système
    6
  • 5.2 Aptitude à l'étalonnage
    6
  • 5.3 Considérations relatives à la charge de la table
    6
  • 5.4 Outillage et calibres
    6
  • 6 Environnement
    7
  • 7 Artefacts
    7
  • 7.1 Taille et forme géométrique des artefacts
    7
  • 7.2 Artefacts de développante de cercle
    9
  • 7.3 Artefacts d'hélice
    9
  • 7.4 Artefacts de pas
    10
  • 7.5 Artefacts de faux-rond de rotation
    11
  • 7.6 Artefacts d'épaisseur de denture
    11
  • 7.7 Artefacts de pièces grandeur nature
    12
  • 8 Méthode d'estimation de l'incertitude de mesure
    13
  • 8.4 Méthodes
    14
  • 8.5 Méthode par comparaison
    14
  • 8.6 Calcul de l'incertitude de mesure U95
    14
  • 8.7 Mode opératoire
    15
  • Annexe A (normative) Exigences relatives aux certificats d'étalonnage des artefacts
    18
  • Bibliographie
    20
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