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ISO 14635-1:2023

Gears — FZG test procedures — Part 1: FZG test method A/8,3/90 for relative scuffing load-carrying capacity of oils

Publication date:   Jul 6, 2023

General information

60.60 Standard published   Jul 6, 2023

ISO

ISO/TC 60/SC 2 Gear capacity calculation

International Standard

21.200   Gears

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Scope

This document specifies a test method based on a FZG four-square test machine to determine the relative load-carrying capacity of lubricating oils defined by the gear-surface damage known as scuffing. High surface temperatures due to high surface pressures and sliding velocities can initiate the breakdown of the lubricant films. This test method can be used to assess such lubricant breakdown under defined conditions of temperature, high sliding velocity and stepwise increased load.
NOTE            This method is technically equivalent to ASTM D 5182-19 and CEC L-07-A-95.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 14635-1:2000

NOW

PUBLISHED
ISO 14635-1:2023
60.60 Standard published
Jul 6, 2023