New 5:1 Self-Contained Gearbox

[5-7HEAVEN]

http://www.ebay.com/itm/Nema17-23-3...d=253111218797&_trksid=p2047675.c100009.m1982

Maybe this might be used as a reduction gear as well as a jackshaft.

 

[MotorBicycleRacing]

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.

 

[5-7HEAVEN]

Wow!

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

 

[MotorBicycleRacing]

Wow!

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

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.

 

[5-7HEAVEN]

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.

 

[Tony01]

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.

 

[5-7HEAVEN]

Thanks for real-life experience.