Larger Gearmotors

The AmpFlow W43-500-G2 heavy-duty gearmotor features a large output shaft suspended in two big 2.5-inch bearings for applications requiring heavy loads.

The 4-inch diameter, 500W motor has a built-in fan for all-day operation.

With a reduction ratio of 15:1, the speed at 24 Volts is 270 RPM.

The motor is available with a 1.5-inch diameter shaft for use with our custom 10-inch pneumatic wheel, or a 3/4-inch diameter shaft that can be used with our solid-rubber 8 or 10-inch wheels and our pneumatic 12.5-inch wheels.

With the 10-inch pneumatic wheel, the top speed is 8 MPH. Mount this motor using the four 1/4-20 threaded mounting holes on the top of the speed reducer, or use the four holes on the underside.

The gearmotor measures 10 inches long (not including shaft) x 10 inches wide x 5 inches high. It weighs 23 pounds.


W43-500-G2 Gearmotor (1.5-inch diameter shaft) - $349 Quantity
W43-500-G2 Gearmotor with 10-inch pneumatic wheel - $398 Quantity
W43-500-SR Gearmotor (3/4-inch diameter shaft) - $349 Quantity
W43-500-SR Gearmotor with 8-inch solid rubber wheel - $391 Quantity
W43-500-SR Gearmotor with 10-inch solid rubber wheel - $398 Quantity
W43-500-SR Gearmotor with 12.5-inch pneumatic wheel - $415 Quantity


The gearmotors 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.

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Contact us for custom gearmotors and volume pricing: