The AmpFlow speed reducer is a heavy-duty, low-cost gearhead that works with any of the three-inch AmpFlow motors. It uses a unique arrangement of roller chains and sprockets rather than gears. This results in torque and efficiency comparable to gear-type reducers at just 1/2 or even 1/3 of the cost of high-torque, gear-type speed reducers.

It is made with a three-piece aluminum case that has been precision CNC machined. The case measures 6 1/8 x 3 5/8 x 2 inches. The shaft is 3/4-inch in diameter and 2.2 inches long. It has a 1/4-inch keyway and a 5/16-24 threaded hole. The long shaft makes it easy to mount wheels, pulleys, sprockets, or gears. The reduction ratio is 15.9:1. The backlash is +/- 1.2 degrees, and it has a maximum torque rating of 270 pound-feet (370 Nm). Four 1/4-20 mounting bolts are supplied with the unit.

The motor is the AmpFlow E30-150-12 (Other motors are also available). This motor is designed to deliver good performance and efficiency at an economical price. This is achieved by the use of four brushes and advanced electromagnetic computer modeling and design. There is a 3/8-inch diameter shaft on the rear of the motor for mounting an optical encoder. The heavy-gauge 12 AWG motor leads are 18 inches long.

This reversible gearmotor can be used at voltages ranging from 6V to 18V (the RPM is proportional to the voltage). At 12 Volts, it has a no-load speed of 340 RPM. Peak short term power output is 380 Watts (0.5 horsepower). Peak efficiency is reached while drawing 23 Amps at 300 RPM.

Wheels that mount directly onto this gearmotor are available. They range in size from 4 inches to 12.5 inches. Search Amazon for "AmpFlow WheelMotors".

AmpFlow gearmotors are used in diverse applications, including robots, industrial motion control, factory automation, semiconductor manufacturing, power tools, pumps, and personal transport systems.