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ISO 14635-3:2023

Gears — FZG test procedures — Part 3: FZG test method A/2,8/50 for relative scuffing load-carrying capacity and wear characteristics of semifluid gear greases

Publication date:   Jul 5, 2023

General information

60.60 Standard published   Jul 5, 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 for determining the relative load-carrying capacity of semi-fluid gear greases defined by the gear surface damage known as scuffing.
This method is useful for evaluating the scuffing load capacity potential of semi-fluid gear greases of NLGI classes 0 to 000, typically used with highly stressed gearing for enclosed gear drives. It can only be applied to greases giving a sufficient lubricant flow in the test gear box of the FZG test machine.
NOTE            The test method is technically equivalent to DIN Fachbericht 74.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 14635-3:2005

NOW

PUBLISHED
ISO 14635-3:2023
60.60 Standard published
Jul 5, 2023