ISO 21771:2007
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ISO 21771:2007
35989

Abstract  Preview

ISO 21771:2007 specifies the geometric concepts and parameters for cylindrical gears with involute helicoid tooth flanks. Flank modifications are included. It also covers the concepts and parameters for cylindrical gear pairs with parallel axes and a constant gear ratio, which consist of cylindrical gears according to it. Gear and mating gear in these gear pairs have the same basic rack tooth profile.


General information 

  •  :  Published
     : 2007-09
  •  : 1
     : 83
  •  : ISO/TC 60/SC 1 Nomenclature and wormgearing
  •  :
    21.200 Gears

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std 1 198 PDF
std 2 198 Paper
  • CHF198

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