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ISO/TS 6336-20:2022

Calculation of load capacity of spur and helical gears — Part 20: Calculation of scuffing load capacity — Flash temperature method

Publication date:   May 24, 2022

General information

90.92   Standard to be revised   Feb 24, 2026

ISO

ISO/TC 60/SC 2 Gear capacity calculation

Technical Specification

21.200   Gears

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Scope

This document specifies methods and formulae for evaluating the risk of scuffing, based on Blok's contact temperature concept.
The fundamental concept is applicable to all machine elements with moving contact zones. The flash temperature formulae are valid for a band-shaped or approximately band-shaped Hertzian contact zone and working conditions characterized by sufficiently high Péclet numbers.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO/TS 6336-20:2017

NOW

PUBLISHED
ISO/TS 6336-20:2022
90.92 Standard to be revised
Feb 24, 2026

REVISED BY

IN_DEVELOPMENT
ISO/AWI 6336-20