chain sprocket axle torque

[dirtdobber]

I had to rebuild the rear differential of a Honda four wheeler once. It might be a good starting point because it is fairly lightweight, surely durable, self contained and likely plentiful. The box is sealed at the ring gear carrier such that the solid rear axle just passes through splines and runs dry. The pinion shaft is sealed also. If it were mounted in the machine such that the pinion drove the axle, then driveline segments could be fashioned to connect gearbox to gearbox. I don't know how the ratios and all would work out.

[john swenson]

thanks dirtdobber, that's the idea to explore other components in other machines that could be retrofitted to work. i'm going to do some internet searching regarding 4 wheeler diffs. hopefully the ratios are 1 to 1. found another co. that makes regular , easy to mount boxes good up to 60 h.p. will talk to them next week. j.b.

[john swenson]

friends, as i wrote in my other post ( max2 driveshaft mod) i located affordable gearboxes rated at 35 h.p. ..... i think the modification i can do on my machine is pretty straight forward. anything i have missed or not thought of as to problems or why this won't work, etc. ? rabbitt, i can mount the boxes right to the frame and connect to the axles with shaft connectors. being there will still be a chain drive setup, that can be the '' weak link'' if something needs to give. not sure when i will tackle it but appreciate any input, questions, etc. thanks, johnboy va.

[allwheeldrive]

Here's an interesting thought - if you used a gear box with a worm drive configuration would you need brakes? I'm being a little silly with this question but really, you can't free wheel a worm drive.

Any Worm gears you could run in a drivetrain system reliably will free wheel. The reason worm gears don’t freewheel in winches etc is because they are not properly cut or adequately lubricated. In a winch a worm gear system would likely out live your arm cranking it, however on high end electric winches or again the Coot the worm gear drives have precisely cut teeth and run in a bath of special high shear oil. The coot will roll down hills quite easily no different than my truck. The only thing that will slow it without a break on is the low gearing with engine breaking. However if you put it in natural or if the engine rpm is not high enough to engage the clutch one can quite easily push the machine on flat surfaces.

[john swenson]

these are sealed gearboxes with beveled gears in a 90 w. oil bath....... j.b.