Shifting Gears

[Matt Adams]

Originally Posted by JVN

150/2 = 75 lbs per gearbox. Using a 6" wheel we can see that we need 50.84 N*m of output torque from each box to achieve 150lbs of linear pushing force.

Ah ha!

John is using the ole.... "I'll state a forumla and then use different units on the output" trick.

You need 75 lbs on each gearbox. You have a 6 inch wheel, with a 3" moment arm, which means you need 225 in-lbs, or 25.42 N-m. Maybe John used the diameter instead.

This halves the rest of the current requirements down to around 42.5 amps on the drill and 35 amps on the atwood... with a little tweaking they could be both modified to get under the 40 amp limit.

Admittedly, the numbers show that this will be pushing 160 amps altogether... which is a little too high for my blood.

and so continues the thread that never ends...

Matt