New 5:1 Self-Contained Gearbox

Discussion in 'Hubs, Gearboxes, Sprockets and Chains' started by 5-7HEAVEN, Aug 25, 2017.

  1. 5-7HEAVEN

    5-7HEAVEN Well-Known Member

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    MotorBicycleRacing likes this.
  2. MotorBicycleRacing

    MotorBicycleRacing Active Member

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    They are for stepper motors.
    Don't know if they would survive or work on a motorized bike?

    Hey 5-7HEAVEN, two of your fellow islanders are racing at the
    Socal Race on Oct 21st for the first time.
     
  3. 5-7HEAVEN

    5-7HEAVEN Well-Known Member

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    Wow!

    Do you know what class they'll be running in?
     
  4. MotorBicycleRacing

    MotorBicycleRacing Active Member

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    Do you know Doug and Cliffy?
    They are shipping their bikes over which have all the goodies.
    They are racing the China girl classes, we have Beginner, Novice and Expert
    and of course they get to race in GoPeds vs Bikes at the end of the day.

    The nema 34 (16 mm) box is $150.00, the others would be too small.
     
  5. 5-7HEAVEN

    5-7HEAVEN Well-Known Member

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    Sorry, I don't know Doug or Cliffy.

    FWIW, if the manufacturing specs are accurate,
    even the lowest model should be able to handle the Honda GX50 engine.
    Honda GX50 engine-2.67Nm/2.00 ft. lbs.

    Nema17-3.5Nm/2.62 ft. lbs.
    Nema23-6.0Nm/4.49 ft. lbs.
    Nema24-50Nm/37.43 ft. lbs.
     
    #5 5-7HEAVEN, Aug 26, 2017
    Last edited: Aug 26, 2017
  6. Tony01

    Tony01 Member

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    Yeah those are for steppers. They won't work. I've built stuff with the nema23 motors and can tell you right now they are relatively low speed. Also running only a single stage will get you a reverse output, as those things probably drive the sun gear.
     
  7. 5-7HEAVEN

    5-7HEAVEN Well-Known Member

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    Thanks for real-life experience.
     

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