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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

General information
Valid from 06.07.2023
ICS Groups
21.200 Gears
Directives or regulations
None

Standard history

Status
Date
Type
Name
06.07.2023
Main
08.06.2000
Main
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.
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