This document specifies the geometric concepts and parameters for cylindrical gears with involute helicoid tooth flanks. Flank modifications are included. The formulas in this document apply to all pressure angles. It also covers the concepts and parameters for involute cylindrical gear pairs with parallel or crossed axes, and a constant gear ratio. Gear and mating gear in these gear pairs have the same basic rack tooth profile.
Status: Under developmentYou can comment on this draft international standard by contacting your national member
Edition: 1Number of pages: 150
Technical Committee: ISO/TC 60/SC 1 Nomenclature and wormgearing
- ICS :
- 21.200 Gears
This standard contributes to the following Sustainable Development Goals:
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|std 1 124|
|std 2 124||Paper|
ISO/DIS 21771-1Stage: 40.20
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