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ISO/DIS 21771-1

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

Опште информације

40.60     12. 2. 2026.

ISO

ISO/TC 60/SC 1

Međunarodni standard

21.200  

Apstrakt

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.

Životni ciklus

PRETHODNO

OBJAVLJEN
ISO 21771-1:2024

TRENUTNO

PROJEKAT
ISO/DIS 21771-1
40.60 Završetak javne rasprave
12. 2. 2026.