AC MotorsBHF 50/60-Hz AC motors include inverter speed control and pre-assembled low-noise gearheads. The 200-W unit has 4-sq.in. motor frame. Gearmotor options include right-angle with hollow or solid shaft and ratios from 5:1--180:1, and parallel shaft configurations with 3:1--180:1 ratios. Torque ratios vary from 14:1--530:1 in.-lbs. The inverter provides 3% accuracy over a range from 100-2400 rpm.Oriental Motor USA; 800-406-7484, http://orientalmotor.com