SGS Series Helical Worm Gearmotors

SGS Series | Helical Worm Gearmotor

Superior Gearbox’s SGS Series right angle gearmotors offer helical-worm gearing that combines durability with exceptional performance in a compact design. Its helical input stage provides greater efficiency than a single stage worm unit. An additional helical gear unit added to the input enables very large ratios.


  • Product Range
    •Power ratings from 0.05 to 46 HP
    •Ratios from 3.97 to 33,818
    •Output torques to 35,400 lb-in
  • Reducer
    •Efficiency up to 94%, depending on ratio
    •Worm shaft and helical gears manufactured from certified steel, heat treated to a case hardness of 58-62 Rockwell C
    •Gears are milled, hardened and ground to assure minimum noise, minimum heat, and maximum efficiency
    •Torque rating based upon mechanical capacity under continuous duty operation
    •Gearcases made of high strength gray cast iron
    •Anti-friction bearings for optimum load capacity and long life
    •Captured keys on input and output shafts
    •O-ring on flange to prevent oil leakage when mounted on a surface that is not totally flat
    •High cross-section modulus design, rugged monobloc design for maximum rigidity
    •Center tapped holes on output shafts to aid the installation of shaft components
    •Metric or Inch dimension output shaft
    •Removable inspection cover
  • Motor
    •Inverter duty
    •Connection terminals
    •Low rotor inertia for high cycling and tight control
    •EISA (IE3) “Premium” available
    •50Hz, 60Hz, or 50/60Hz global motor for shipment into Europe
  • Mounting
    •Torque arm for shaft mounting
    •B14 or B5 flange with centering tenon
    •Foot mounting
    •Can be ordered for any mounting orientation
  • Optional Features
    •C-Face or IEC motor adapter
    •Hollow shaft
    •Corrosion and/or long term storage protection
    •FKM seals instead of NBR
    •High cycling fail-safe brake
    •Forced cooling fan for low frequency operation
    •Thermostat or thermistor protection
    •Plug connectors for quick motor replacement
    •Two-speed motor
    •Motor encoder – built-in or externally mounted
    •Servo Motor

Ways to Request a Quote

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  • SG Series Request for Quotation

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  • Application

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