A28 Series - 3-Inch High Performance Motors

The high-performance A28 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 neodymium rare-earth magnet material.

A28-150 Motors

Specifications (A28-150):

• Diameter 3.0 in.
• Length 4 in.
• Peak Horsepower 3.0
• Peak Torque 1950 oz-in
• Efficiency 80%
• RPM at 24V 6100 rpm
• Shaft Diameter 1/2 in.
• Shaft Length 2 in.
• Keyway 1/8 in.
• Capacitors Yes
• Magnet Type Neodymium
• No Load Amps 3.4 Amps
• Stall Current 285 Amps
• Terminal Resistance .064 Ohms
• Kt 5.26 oz-in/Amp
• Kv 257 rpm/Volt
• Rotor Inertia .02 oz-in-sec^2
• Thermal Resistance 3.2 degC/Watt
• Weight 3.8 lbs.

A28-400 Motors

Specifications (A28-400):

• Diameter 3.0 in.
• Length 6.7 in.
• Peak Horsepower 4.3
• Peak Torque 3560 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 4.4 Amps
• Stall Current 390 Amps
• Terminal Resistance .044 Ohms
• Kt 6.58 oz-in/Amp
• Kv 205 rpm/Volt
• Rotor Inertia .05 oz-in-sec^2
• Thermal Resistance 1.8 degC/Watt
• Weight 6.9 lbs.