Oct 22, 2003, 04:26 AM
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Greenfield, OH
Joined Jul 2002
33 Posts
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It's the pitch of the gear teeth. "MO" stands for Modulus, I believe. If you multiply the number of teeth by the modulus, you will get the pitch diameter of the gear in millimeters. In this country, our pitch is expressed, basically, as " teeth per inch"; a 48 tooth gear in 48 pitch will have a pitch diameter of 1". Metric gears are expressed in "mm tooth to tooth", while we use "teeth per inch". Threads on bolts work the same way. requires a new way of thinking.
rshockey
AMA33963
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