Rotary actuators couple right to the load

July 7, 2005
The hollow rotary DG Series actuators from Oriental Motor USA Corp., Torrance, Calif. (orientalmotor.com), handle higher torque to deliver stable, high-speed positioning of relatively large inertial loads.

The hollow rotary DG Series actuators from Oriental Motor USA Corp., Torrance, Calif. (orientalmotor.com), handle higher torque to deliver stable, high-speed positioning of relatively large inertial loads. And output tables let users directly couple the unit to application loads, reducing parts and complexity. A single-stage reduction gear lets the company increase the diameter of the driven gear in the output table and the through hole. Repeatability is ±15 arc-sec and total backlash is less than 2 min. The 60-mm (2.36-in.) actuator generates 7.9 lb-in. of torque, and the 85-mm (3.35-in.) and 130-mm (5.12-in.) versions turn out 24 and 106 lb-in. of torque, respectively. Maximum speed on all units is 200 rpm or 250-kHz input frequency, depending on the resolution setting.

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