What causes metal gears to wear down over time?

Subject: What causes metal gears to wear down over time?

Date: Sat Mar 1 00:51:31 2008
Posted by Shawn
Grade level: undergrad School: Empire State College
City: Rochester State/Province: NY Country: USA
Area of science: Engineering
ID: 1204357891.Eg

Message:


 I was wondering what causes metal gears to wear down over time? Is friction 
responsible for this occurance? Also is there any way to prevent this from 
happening, such as coating the metal with a protective covering or something? 
Please let me know. Thanks. Shawn!!!

Re: What causes metal gears to wear down over time?

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