DG Series rotary actuators come in three sizes: 60 mm (2.36 in.), 85 mm (3.35 in.) and 130 mm (5.12 in.). Output table of the hollow (through-hole) shaft devices allows direct coupling to the application load. A single-stage reduction gear mechanism increases the diameter of the step-motor driven gear in the output table to enable a large through-hole configuration. Gear reduction mechanism achieves a repeatability of ±15 arc-seconds and a total lost motion (backlash) of less than 2 arc-min. The 60 mm device achieves a permissible torque of 7.9 lb-in. The 85 mm and 130 mm high-rigidity models develop a permissible torque of 24 lb-in. and 106 lb-in. respectively. Maximum permissible speed is 200 rpm or 250 kHz input frequency, depending on resolution setting. www.orientalmotor.com Oriental Motor USA Corp.