Rotary actuators

  • 25-Jun-2009 02:54 EDT
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Helac's expanded T20 Series of helical, hydraulic rotary actuators, combine one-piece through shaft and internal tapered roller bearings for applications where torque generation and higher frequency cycling are required. The Series replaces HS rotary actuators and features a splined output shaft that can carry substantial radial, moment, and axial loads without additional external bearings while facilitating smooth operation and low breakaway pressures. Other features include a holding torque over 2.1 times the rated torque capacity, mounting flexibility, sliding spline operating technology for resilience to shock loads, elimination of external and internal bypass leakage, corrosion resistance, and equal displacement. The T20 Series is available in three sizes with torque output ranging from 2083 to 5000 lb•ft (2825 to 6780 N•m ) at 3000 psi (210 bar).

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