0-A28-400 AmpFlow A28-400 Motor
<p><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">AmpFlow high-performance motors are designed to give the highest level of performance possible in a brushed DC motor. This is achieved by advanced design and the use of rare-earth magnet materials.

</font></p>
<p align="left"><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">This motor has been used for many years by champion robot builders. </font></p>
<p><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">An
incredible amount of power in a small package. You quite simply
will NOT find a more powerful motor of this size. This motor is a
must-have for the serious competitor. The improved Neodymium magnets
and sturdy construction make the A28-400 the optimal choice for combat
robotics.</font></p>
<table width="100%" border="1" cellspacing="0" cellpadding="0">
<tr>
<td colspan="2"><font color="cccccc" size="2" face="Arial, Helvetica, sans-serif">Specs</font></td>
</tr>
<tr>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Diameter</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">3.0 in. </font></td>
</tr>
<tr>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Length</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">6.7 in. </font></td>
</tr>
<tr>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Peak Horsepower </font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">4.5</font></td>
</tr>
<tr>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Peak Torque </font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">3720 oz-in </font></td>
</tr>
<tr>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Efficiency</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">83%</font></td>
</tr>
<tr>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">RPM at 24V </font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">4900 rpm </font></td>
</tr>
<tr>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Shaft Diameter </font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">1/2 in. </font></td>
</tr>
<tr>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Shaft Length </font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">2 in. </font></td>
</tr>
<tr>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Keyway</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">1/8 in. </font></td>
</tr>
<tr>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Capacitors</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Yes</font></td>
</tr>
<tr>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Magnet Type </font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Neodymium</font></td>
</tr>
<tr>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">No Load Amps </font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">4.5 Amps </font></td>
</tr>
<tr>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Stall Current </font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">390 Amps </font></td>
</tr>
<tr>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Terminal Resistance </font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">.042 Ohms </font></td>
</tr>
<tr>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Kt</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">6.57 oz-in/Amp </font></td>
</tr>
<tr>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Kv</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">206 rpm/Volt </font></td>
</tr>
<tr>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Rotor Inertia </font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">.05 oz-in-sec^2 </font></td>
</tr>
<tr>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Thermal Resistance </font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">1.8</font><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif"> degC/Watt</font></td>
</tr>
<tr>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">Weight</font></td>
<td><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">6.9 lbs. </font></td>
</tr>
</table>

AmpFlow A28-400 Motor
An incredible amount of power in a small package. You quite simply will NOT find a more powerful motor of this size. Neodymium magnets. 1/2" shaft.

$399.00
Robot MarketPlace - AmpFlow A28-400 Motor
CLOSE X
Loading Image...

Motors
   Etek Motors


Click photo to enlarge.

Briggs & Stratton Etek Motor
Part# ETK-ETEK




Please see this product on the new Robot MarketPlace web site. Click here

 
 

 

 

General Product Information
Alternate Photos
Other Documentation
Reviews & Comments

This is the original Briggs & Stratton Etek Motor, one of the most powerful DC motors available. Many of the most powerful spinner robots out there have been using this motor with great success (including Last Rites, Nightmare, Son of Whyachi, Moebius and many more). WARNING: this motor is NOT an ordinary motor, and should be handled with GREAT care. It is very capable of serious power and should always be completely secured before applying any power to it.

24V to 48V (has been run up to 72V)
72rpm per volt (3456rpm @ 48V)
20.8 pounds
7.91" diameter
5.64" length
7/8" shaft with 3/16" keyway and 3/8-16 Tapped center
Torque constant: 1.14 in-lb/Amp (0.13 Nm/Amp)
Max motor current: 330A for 2 minutes
15 horsepower max

 

 
Other products you may be interested in:
AmpFlow A28-150 Motor

Ampflow Mount 1/2 inch thick - with heatsink (1 mount)

Ampflow Mount 1/2 inch thick - no heatsink (1 mount)

TW TWM3 Gearbox

Replacement Brush Set for A28 and F30 AmpFlow motors - set of 4

Replacement Caps and Insulator Set for 3 inch AmpFlow motor