ISO 2203:1973
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Technical drawings -- Conventional representation of gears

This standard was last reviewed and confirmed* in 2014.

*Therefore this version remains current


Establishes how to draw the toothed portion of gears including worm gearing and chain wheels. Applicable to detail drawings (individual gears) and assembly drawings (gear pairs). As a fundamental principle a gear is represented (except in axial section) as a solid part without teeth, but with the addition of the pitch surface in a thin long dash-and-dot line. For uniformity all figures are in first angle projection.


  • Document published on: 1973-03-01
    Edition: 1 (Monolingual) ICS: 01.100.20; 21.200
    Status: Published Stage: 90.93 (2014-04-03)
    TC/SC: ISO/TC 10/SC 6 Number of Pages: 6
  • This standard has not been revised

  • No corrigenda or amendments available

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