[TowerTalk] Recommendations for an electric foldover winch
    Ralph Bolt via TowerTalk 
    towertalk at contesting.com
       
    Fri Aug  1 13:23:52 EDT 2014
    
    
  
Rick:
The motor shaft is 1/2 inch diameter.  You mistook the size of the keyway for the shaft size.  The motor develops 1/9 HP which when geared down from it's approximate motor speed of 1600 rpm to the 10 rpm out of the gearbox easily develops the 500 inch-pounds of torque.  It's a very hefty motor and gearbox.  Nominal current draw by the nameplate is 3.6 amps.  I put my clamp-on ammeter on it while raising the tower and it drew just 3.0 amps.  So the motor is not overtaxed.
Ralph, K0HML
    
    
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