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

Current stage: 90.92 Effective date: Feb 24, 2026

Originator: ISO

Owner: ISO/TC 60/SC 2

Type: Technical Specification

ICS: 21.200

Languages: English French

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Status: Published

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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WITHDRAWN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

National adoptions

DS ISO/TS 6336-20:2022

DPS

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

60.60 Standard published

DPS/KT 74 more