ISO-14635-1 › Gears - FZG test procedures - Part 1: FZG test method A/8,3/90 for relative scuffing load-carrying capacity of oils
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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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Document Number
ISO 14635-1:2023
Revision Level
2ND EDITION
Status
Current
Publication Date
July 1, 2023
Committee Number
ISO/TC 60/SC 2