<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii">
<META NAME="Generator" CONTENT="MS Exchange Server version 6.5.7652.24">
<TITLE>Motor Calculations</TITLE>
</HEAD>
<BODY>
<!-- Converted from text/rtf format -->
<P><FONT SIZE=2 FACE="Arial">Does anyone have experience in selecting a motor size for a given speed and inertia?</FONT>
<BR><FONT SIZE=2 FACE="Arial">These will probably be AC servo motors.</FONT>
</P>
<P><FONT SIZE=2 FACE="Arial">I am trying to determine the size of 2 motors with the following criteria.</FONT>
</P>
<P><FONT SIZE=2 FACE="Arial">1. Will need to rotate a weight of about 600 lbs. evenly distributed with a maximum distance from center of 2 feet.</FONT>
</P>
<P><FONT SIZE=2 FACE="Arial">2. The motor will need to rotate a weight of about 800 lbs. evenly distributed with a maximum distance from center of 4 feet.</FONT></P>
<P><FONT SIZE=2 FACE="Arial">The motors should be strong enough to get up to a maximum speed of 2 rpm within 1 second.</FONT>
</P>
<P><FONT SIZE=2 FACE="Arial">Any ideas?</FONT>
</P>
<P><FONT SIZE=2 FACE="Arial">Thanks,</FONT>
<BR><FONT SIZE=2 FACE="Arial">Rick</FONT>
</P>
</BODY>
</HTML>