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Synchronous Motor Family
HURST® permanent magnet synchronous motors are reversible permanent-split capacitor motors identical in construction to the HURST® stepping motors. The 60 Hz can-stack motors operate at synchronous speeds of 300 and 600 RPM. High quality gearing is available for the can-stack motors. The ceramic rotor magnet material provides a relatively high flux resulting in a good torque to size ratio at moderate cost. In addition the permanent magnet construction provides inherent dynamic braking and low rotor speed for quiet operation and rapid acceleration. The disadvantages of permanent magnet motors are a limited ability to accelerate inertial loads and a high sensitivity to the parameters of voltage and phasing capacitor. The first of these problems may be minimized by gearing or in some cases flexible couplings. The sensitivity to voltage and phasing capacitor directly affects the directional reliability of both starting and running under load. In HURST® motor designs directional reliability is a primary consideration and is assured when motors are operated with the recommended capacitor within a voltage range of 10% of nominal.


  • 24 or 115 Vac 50/60 Hz
  • 35mm Size
  • Speed 300 RPM


  • 24 or 115 Vac 50/60 Hz
  • 35mm Size
  • Up to 150 oz-in of torque
  • Speed Range of .3 to 300 RPM
  • Up to 900 Reduction for geared motors


  • 24 or 115 Vac 50/60 Hz
  • 42mm Size
  • Speed 300 RPM


  • 24 or 115 Vac 50/60 Hz
  • 42mm Size
  • Up to 150 oz-in of torque
  • Speed Range of .3 to 300 RPM
  • Up to 900 Reduction for geared motors


  • 24, 115, or 230 Vac 50/60 Hz
  • Speed 300 or 600 rpm
  • 49mm Size


  • 24, 115, or 230 Vac 50/60 Hz
  • Speed Range of 1 to 600 rpm
  • Up to 150 oz-in of torque
  • 49mm Size
  • Up to 900 Reduction for geared motors
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  • 24, 115, or 230 Vac 50/60 Hz
  • 55mm Size
  • Speed 300 RPM


  • 24, 115, or 230 Vac 50/60 Hz
  • 55mm Size
  • Up to 200 oz-in of torque
  • Speed Range of .5 to 300 RPM
  • Up to 600 Reduction for geared motors


  • 24, 115, or 230 Vac 50/60 Hz
  • 59mm Size
  • Speed 300 or 600 rpm


  • 24, 115, or 230 Vac 50/60 Hz
  • 59mm Size
  • Up to 200 oz-in of torque
  • Speed Range of 1 to 600 rpm
  • Up to 600 Reduction for geared motors


  • 24, 115, or 230 Vac 50/60 Hz
  • Size 24
  • Speed 300 rpm


  • 24, 115, or 230 Vac 50/60 Hz
  • Size 24
  • Up to 250 oz-in of torque
  • Speed Range of .25 to 300 rpm
  • Up to 600 Reduction for geared motors



  • 115 Vac 60 Hz
  • Up to 20 oz-in of torque
  • 300 rpm synchronous speed


  • 115 Vac 60 Hz
  • Speed Range of 24 rev/day to 120 rpm
  • Up to 100 oz-in of torque
  • Up to 7200 Reduction for geared motors


  • 115 Vac 60 Hz
  • Speed Range of 1 to 120 rpm
  • Up to 100 oz-in of torque
  • Includes Integral Clutch
  • Long Clutch Life


  • 115 Vac 60 Hz
  • Speed Range of 1 to 120 rpm
  • Up to 100 oz-in of torque
  • Includes Integral Clutch
  • Long Clutch Life



  • 115 Vac 60 Hz
  • 1800 rpm
  • NEMA 2-11 Mounting



  • 115 Vac 60 Hz
  • Speed Range of 1 to 300 rpm
  • NEMA 2-11 Mounting
  • Up to 250 oz-in of torque

  • 24, 115, or 230 Vac 50/60 Hz
  • 57mm Size
  • Up to 200 oz-in of torque
  • Speed 300 rpm

  • 24, 115, or 230 Vac 50/60 Hz
  • 57mm Size
  • Up to 200 oz-in of torque
  • Speed Range of 1 to 600 rpm
  • Up to 600 Reduction for geared motors
Discontinued Motor
 for reference only

  • 24, or 115 60 Hz Options
  • 57mm Size
  • Up to 116 oz-in of torque
  • Speed 300 rpm
Discontinued Motor
 for reference only

  • 24, or 115 60 Hz Options
  • 57mm Size
  • Up to 116 oz-in of torque
  • Speed Range of 15 to 300 rpm
  • Up to 20 Reduction for geared motors



Discontinued Motor
 for reference only

  • 115 Vac 60 Hz
  • Up to 100 oz-in of torque
  • Speed Range of 1/3 to 1200 rpm

Discontinued Motor
 for reference only

  • 115 Vac 60 Hz
  • Open Frame, Shaded Pole style
  • Speed Range of 1 to 3600 rpm
  • Up to 100 oz-in of torque

  • 115 Vac 60 Hz
  • 70mm Size
  • Speed Range of 1 to 300 rpm
  • Up to 600 oz-in of torque

Discontinued Motor
 for reference only

  • 115 Vac 60 Hz
  • Reversible, Inverted Rotor
  • Speed Range of 900 to 1800 rpm
  • Up to 16.8 oz-in pull-in torque/17.0 oz-in pull-out torque