The AmpFlow Wheel/Gearmotor combination can be configured with your choice of six different wheel sizes and ten different motors.

The high-traction solid rubber wheels are 1.5 inches wide and they range in diameter from 4 inches to 10 inches. The big pneumatic 12.5-inch wheel pictured on the left is 2.75 inches wide.

The wheels have a custom hub that is keyed to the 3/4-inch shaft of the speed reducer. The wheel is assembled with 1/4-inch keys and held in place by two steel discs and a spacer. The whole assembly is held together by a 5/16-18 screw that threads directly into the shaft.

This combination of high power, high traction, and light weight make these wheels ideal for robots and other mobile applications.

 

 

 

We stock 14 different gearmotors or we can design custom gearmotors:

Type High-Performance Economy Motors
Voltage Range 6 to 18 Volts 12 to 36 Volts 24 to 72 Volts
Model E30-400-12-G E30-150-12-G E30-400-24-G E30-150-24-G E30-400-48-G E30-150-48-G
Peak Horsepower 1.6 0.7 2.1 1.0 2.7 1.1
Motor Diameter (inches) 3.1 3.1 3.1 3.1 3.1 3.1
Reduction Ratio 8.3:1 8.3:1 8.3:1 8.3:1 8.3:1 8.3:1
Stall Torque (in-lbs) 500 230 770 360 960 390
Nominal Voltage 12* 12* 24* 24* 48* 48*
No-Load RPM 780 700 680 670 690 670
Pounds 9.4 7.1 9.4 7.1 9.4 7.1
Price $299 $269 $299 $269 $299 $269
Pictures
Drawings
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Type High-Performance Mid-Range
Model A28-400-G A28-150-G F30-400-G F30-150-G
Peak Horsepower 4.3 3.0 2.5 2.3
Motor Diameter (inches) 3.0 3.0 3.1 3.1
Reduction Ratio 8.3:1 8.3:1 8.3:1 8.3:1
Stall Torque (in-lbs) 1930 1020 1160 710
Nominal Voltage 24* 24* 24* 24*
No-Load RPM 580 720 540 830
Pounds 10.4 7.3 11.8 8.2
Price $639 $534 $479 $429
Pictures
Drawings
Performance Charts
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* The above specifications are for the motor's nominal voltage. The motors can also be used at lower or higher voltages. The RPM is proportional to the voltage, so running at half the nominal voltage will result in half the speed, and twice the voltage will double the speed. The maximum achievable torque is also proportional to the voltage. Shorter duty-cycles are recommended for higher voltages to allow the motors time to cool. Please note that the above torque figures are the theoretical peak torques when stalled. Operating any high-performance motor while stalled will damage it.

 

On Sale! Fan Cooled Motors

Type Fan Cooled  24V Fan Cooled 48V  
Model A28-400-F24-G A28-150-F24-G A28-400-F48-G A28-150-F48-G
Peak Horsepower 4.3 3.0 11.5* 4.6
Motor Diameter (inches) 3.0 3.0 3.0 3.0
Reduction Ratio 8.3:1 8.3:1 8.3:1 8.3:1
Stall Torque (in-lbs) 1930 1020 3740** 1290
Nominal Voltage 24V 24V 48V 48V
No-Load RPM 580 720 750 880
Pounds 10.6 7.5 10.6 7.5
Price $689 $649 $584 $689 $609 $584 $524
Pictures
Drawings
Performance Charts
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The fan-motors have ventilation holes in the front and rear aluminum plates to allow for flow-through cooling. The holes in the front plate are positioned so they are not blocked when mounting the motor to a flat surface. These motors also feature low-profile motor leads for better fit into smaller spaces.

* Theoretical peak power is 11.5 HP. Power at the recommended short-term current limit of 200A is 9.1 HP.
** The current required to reach 3740 in-lbs is far outside the safe operating limits of this motor. This figure is theoretical and should be used for comparative purposes only.

 

 

VEX High-Voltage Motor Controller

 

We recommend using the IFI VEX 48V motor speed controller with our 48-volt motors. Visit this page for more details.

 

 

 

 

 

 

Here are charts showing the no-load speed (in MPH) for each Wheel / Motor combination:

Wheel E30-400-12-G E30-150-12-G E30-400-24-G E30-150-24-G E30-400-48-G E30-150-48-G
4-inch 9.3 8.3 8.1 8.0 8.2 8.0
5-inch 11.6 10.4 10.1 10.0 10.3 10.0
6-inch 13.9 12.5 12.1 12.0 12.3 12.0
8-inch 18.6 16.7 16.2 15.9 16.4 15.9
10-inch 23.2 20.8 20.2 19.9 20.5 19.9
12.5-inch 29.0 26.0 25.3 24.9 25.7 24.9

Wheel A28-400-G A28-150-G F30-400-G F30-150-G A28-400-F48 A28-150-F48
4-inch 6.9 8.6 6.4 9.9 8.9 10.5
5-inch 8.6 10.7 8.0 12.3 11.1 13.1
6-inch 10.4 12.9 9.6 14.8 13.4 15.7
8-inch 13.8 17.1 12.9 19.8 17.8 20.9
10-inch 17.3 21.4 16.0 24.7 22.3 26.2
12.5-inch 21.6 26.8 20.1 30.9 27.9 32.7

The speeds shown above are for the motor's nominal voltage. If a lower or higher speed is required, the motors can be used at lower or higher voltages. The RPM is proportional to the voltage, so running at half the nominal voltage will result in half the speed, and twice the voltage will double the speed. The maximum achievable torque is also proportional to the voltage. Shorter duty-cycles are recommended for higher voltages to allow the motors time to cool. Ideally, the top speed of the WheelMotor would match the top speed required in an application when any electronic speed controls are set to full throttle.

 

Here are our recommendations regarding the selection of a proper reduction ratio.

 

 


WheelMotors with the E30-150 motors. (Click for larger images)
4-inch WheelMotor 5-inch WheelMotor 6-inch WheelMotor
 

 

 

 

 

 

8-inch WheelMotor 10-inch WheelMotor 12.5-inch WheelMotor

 

 

 

 

 

The price of the speed reducer is $190. To that you can add any available combination of motors and wheels to get the best balance of power, speed, and price. Please see our Motors page for more information on our motors and visit the Speed Reducer page for more details of our custom gearhead.

 

 

Wheel/Motor Combination - Base Price: $190




  
 

 

 

 

Warranty
The wheelmotors are warranted to be free from manufacturing defects, and fully operational when you receive them. AmpFlow gives no other warranty, either expressed or implied. Warranties are not transferable. In no event shall AmpFlow's liability exceed the buyer's purchase price, nor shall AmpFlow be liable for any indirect or consequential damages.

Ordering
Shipments must be to a street address; we can not ship to a PO Box. Please allow 7-10 days for orders shipped by UPS ground, 3-4 days for orders shipped by 2nd day air, and up to 14 days for international orders.

Contact us for custom wheelmotors and volume pricing.

 

 

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