AGMA 925-A03 PDF

AGMA A03 AMERICAN GEAR MANUFACTURERS ASSOCIATION Effect of Lubrication on Gear Surface Distress ii. Effect of Lubrication on Gear Surface. AGMA A03 Gear Manufacturers CAUTION NOTICE: AGMA technical publications are subject to constant improvement, revision or withdrawal as dictated. AGMA A Effect of Lubrication on Gear Surface Distress. standard by American Gear Manufacturers Association,. View all product details. Most Recent .

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Manufacturers and end-users are encouraged, however, to work with their lubricant suppliers to address specific concerns or special issues that may not be covered here such as greases.

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Item Detail – AGMA A03 (reaffirmed January )

The equations provided herein allow the user to calculate specific oil film thickness and instantaneous contact flash temperature for gears in service. One of the key parameters is the estimated film thickness.

Asdiscussionsevolved,itbecame clear that this should be a stand alone document which will hopefully serve manyothergeartypes. SCOPE This information sheet is designed to provide currently available tribological information pertaining to oil lubrication of industrial gears for power transmission applications.

Any person who refers to any AGMAtechnicalpublicationshouldbesurethatthepublicationisthelatestavailablefromtheAs-sociation on the subject matter. Helical gears were analyzed by resolving the load in the normal plane and distributing the normal load over the minimum length of the contact lines.


As discussions evolved, it became atma that this should be a standalone document which will hopefully serve many other gear types.

AGMA A03 (R) – Effect of Lubrication on Gear Surface Distress

Afma addition, it added agmma improvements including: The AGMA Aerospace Committee began investigating scuffing inand Lemanski [6] published results of a computer analysis that contains data for 90 spur and helical gearsets, and formed the terms for AGMA This information sheet provides sufficient information about key lubricant parameters to enable the user to generate reasonable estimates about surface distress based 952-a03 the collective knowledge available.

Thank you for visiting our website and your interest in our free products and services. This went largely unnoticed in the U. D Example calculations Blok [1] 925-aa03 his contact temperature equation in If you have any questions about copyright issues, please report us to resolve them. AGMA technical publications are subject to constant improvement,revision or withdrawal as dictated by experience.

Tables 1 Symbols and units 2. It is intended thatthis document serve as a general guideline and source of information about conventionallubricants, their properties, and their general tribological behavior in gear contacts.

B Normal or Gaussian probability It is intended that this document serve as a general guideline and source of information about conventional lubricants, their properties, and their general tribological behavior in gear contacts.


AGMA also includes a definition of the probability of scuffing. The standard then uses this base data to calculate the probability of wear. Effect of Binders on Ceramic Mould.

Effect of Structure on Acid-Base Properties. Accumulation of feedback data will serve to enhance future developments and improvedmethods to evaluate lubricant related wear risks. This is not a trivial calculation, but one that has significant impact on overall performance of the gear pair. The wear is caused by the metal surfaces contacting each other if the lubrication gap is too narrow. Please download to get full document.

There is therefore a tendency to underevaluate oils that have effective EP additives.

AGMA As specified in AGMAyou can use this input window to define the probability of scuffing and wear as well as susceptibility to micropitting frosting.

Various methods of gear surfacedistressareincluded,suchasscuffingandwear,andinaddition,microandmacropitting.

AGMA 925-A03 – Effect of Lubrification on Gear Surface Distress.pdf

In Harmon Blok published his theory about the relationship between contacttemperature and scuffing. Thisshouldbeconsideredaworkinprogressasmoreislearnedaboutthetheories and understanding of the various parameters and how they affect the life of thegear. Specifically, the subcommittee targeted the effect lubrication may have on gear surface distress.