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A28-400 Ampflow Motor


SKU: AMP010 Category:

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.
This motor has been used for many years by champion robot builders.

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.

Diameter 3.0 in.
Length 6.7 in.
Peak Horsepower 4.5
Peak Torque 3720 oz-in
Efficiency 83%
RPM at 24V 4900 rpm
Shaft Diameter 1/2 in.
Shaft Length 2 in.
Keyway 1/8 in.
Capacitors Yes
Magnet Type Neodymium
No Load Amps 4.5 Amps
Stall Current 390 Amps
Terminal Resistance .042 Ohms
Kt 6.57 oz-in/Amp
Kv 206 rpm/Volt
Rotor Inertia .05 oz-in-sec^2
Thermal Resistance 1.8 degC/Watt
Weight 6.9 lbs.


Additional information

Weight 3129 g
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A28-400 Ampflow Motor


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