0-BK-8WHEEL42 8 Inch BattleKit Robot Wheel - 42-Tooth Sprocket
<p><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Robot builders often find that the trickiest part of a robotics project is making
the wheels. First you need to find a suitable tire/wheel combination, then you
must figure out a way to attach a sprocket so that it will handle the torque
of a geared-down drive motor. Our wheel/sprocket/bearing combination will solve
those problems for you!</font></p>
<p><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Assembled with:<br>
Colson Performa wheel 8 x 1.5in.<br>
Custom one-piece hub/sprocket<br>
Bronze bearing pressed into the 42-tooth sprocket<br>
Ball bearing with insider diameter of 0.5in</font></p>
<p><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">The inner
race of the ball bearing extends into, (but does not touch), the inside diameter
of the hub. The width of the assembly is 2.23 to 2.24&quot; which fits
perfectly into our 2.25&quot; wide <a href="battlekit_drive_modules.html" target="_top">modular
drive units</a> and <a href="battlekits.html" target="_top">robot kits</a>.
Use washers or shaft collars to locate your wheel on your axle if the axle
is wider than 2.3&quot;, (this also keeps the bearings from working their way
out of the wheel).</font></p>
<p><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">This combination of components weighs in at just 3 pounds - or 12 pounds
for 4 wheels. We believe that this is the lowest-cost and lightest wheel/sprocket
combination available.</font></p>
<table width="100%" border="1" cellspacing="0" cellpadding="0">
<tr>
<td><font color="cccccc" size="2" face="Arial, Helvetica, sans-serif">Wheel Diameter </font></td>
<td><font color="cccccc" size="2" face="Arial, Helvetica, sans-serif">Sprocket Teeth </font></td>
<td><font color="cccccc" size="2" face="Arial, Helvetica, sans-serif">Speed (MPH)* </font></td>
</tr>
<tr>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">4in.</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">19</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">9</font></td>
</tr>
<tr>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">5in.</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">19</font></td>
<td><p><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">12</font></p> </td>
</tr>
<tr>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">5in.</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">28</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">8</font></td>
</tr>
<tr>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">6in.</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">19</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">14</font></td>
</tr>
<tr>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">6in.</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">28</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">10</font></td>
</tr>
<tr>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">8in.</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">28</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">13</font></td>
</tr>
<tr>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">8in.</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">42</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">9</font></td>
</tr>
<tr>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">10in.</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">42</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">11</font></td>
</tr>
</table>
<p><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">* Indicates the speed at which a vehicle would travel if the wheel was driven with a 9-tooth sprocket which is revolving at 1700 RPM. (As they are in our <a href="battlekits.html" target="_top">kits</a> when using our E30-150 motors and our speed reducer).</font></p>
<p><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">For use with #35 chain.</font></p>
<p><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Contains one wheel assembly. </font></p>