Rotary Actuators

A rotary actuator is a type of gearbox specifically designed to handle high radial, axial, and moment loads. It is built to withstand heavy loads while providing high rotational output torque. rotary actuators consist of a worm gear mechanism, a metal bearing component, rubber seals, and sturdy housing to protect the working components from environmental factors such as dirt, water, and dust. They operate similarly to worm gears, where the rotational motion of the worm gear translates into rotary motion of the perpendicular axis, resulting in a decrease in speed and an increase in torque of the driven member (the worm wheel). The output speed of the worm wheel depends on the ratio of the threads on the worm gear to the number of teeth on the worm wheel.

  • Type: Single Stage Worm Gear Speed Reducer

  • Input Speed: 4.7 RPM
  • Gear Ratio: 51:1

  • Input Shaft Spline: 14 Tooth X 1.25 Module, Flank Centered, Internal Spline Per Din 5480. Designation: Hub, Din 5480-n 19x1.25x14x9h"

  • Transmission Efficiency: Min 40% Under All Load and temperature conditions

  • Torsional Stiffness, Min: 1.0 Kn-mrad

  • Internal Rotational Friction, Max.: 10N-m at Input

  • Rotation Range of Low-Speed Shaft: ±650 (+ 00 / - 30 ) from the nominal center of range to an internal mechanical hard stop

  • Angle Indicator: Nominal center of range (Zero Position) and ±100 increments to ±600 on each side

  • Backlash, Max: 5M Rad (0.280)

  • Housing Material: Ductile(Nodular) Iron Casting

  • Seals: Resistant to UV and environmental degradation for design life

  • Lubrication: Synthetic grease or oil. Grease fittings and/or oil service ports provided

  • Breather: Screw-in Type, PTFE Membrane Breather Vent

  • Design Life, Min.: 30 years, per loading and environmental requirements

  • Environmental: Outdoor rated, All regions

  • Ingress protection rating, Min: IP55, PER IEC_60529

  • Ambient Temperature Range: -40° C to 80° C

  • Maintenance: Maintenance-free, no re-lubrication required

  • Corrosion Protection, Housing: Rust grade 5 or higher per ASTM D610m after 480 hour salt spray per ASTM

  • Annual torque histogram(n-m)

    • 1000 - 6481
    • 2000 - 9094
    • 3000 - 1647
    • 4000 - 564
    • 5000 - 211
  • Tracker holding, non-backdriving: 12000Nm

  • Dynamic radial rating, min: 15,000N
  • Dynamic radial rating, min: 20,000N
  • Dynamic radial rating, min: 9,000N
  • Static axial rating, min: 50,000N
  • Annual torque histogram(n-m)

    • 1000 - 6481
    • 2000 - 9094
    • 3000 - 1647
    • 4000 - 564
    • 5000 - 211
  • Tracker holding, non-backdriving: 12000Nm

  • Dynamic radial rating, min: 15,000N
  • Dynamic radial rating, min: 20,000N
  • Dynamic radial rating, min: 9,000N
  • Static axial rating, min: 50,000N