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      • ISO 21771-1:2024
      Codes & Standards - Purchase

      ISO 21771-1:2024

      Cylindrical involute gears and gear pairs — Part 1: Concepts and geometry

      SKU: iso_084949_186124 Published by ISO Publication Year 2024 1 Edition 159 pages

      Product Details

      • Overview
      This document specifies the geometric concepts and parameters for cylindrical gears with involute helicoid tooth flanks. Flank modifications are included. The formulae 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.

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      GST REG No R119441681
      QST REG No R1006017360

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