I got this idea last night and have been wondering about it for a day: Is it possible to have planet gear with ratio 1:2 installed between win-/punsun and dnepr gearbox? Prefeably with manual/centrifucal clutch included. (and maybe with reverse?)
As far as I have thinked it would create decent system where gearbox + final drive can be left as original.
(=easier and cheaper to fix if/when broken)
Have no idea where to ask but this brotherhood of dieselbikers - local shops won´t answer my qustions anymore.
i hear you. such a box would work. finding one would be difficult.
i am excited about the idea of the ibc cvt that does .46:1 overdrive. that would do the trick for a dnepr shaft-drive. or pretty much any other shaft drive from cx500 to goldwing.
Planetary gears are used in some (chain)winches.
The china made I misused as heavy duty antenna rotator had plain bearings and grease
lubrication.
Maybe the better brands are good enough for higher rpm.
Ratio could be a problem , 1:2 does not help much so I guess they have a much larger
figure
Yeah, that could work. It'd be pretty easy to achieve that kind of ratio.
To achieve the "clutch" function I'd use friction bands round the outer ring gear - when held stationary the gears would drive, and when released there would be no net torque transmission.
It is indeed extra weight on top of the original gearbox tho' - it might be better to just build your own gearbox or final drive with better suited ratios..
The lycoming engine on my dad's airplane has a planetary set that slows the prop to about 60% of engine rpm. The whole setup is about 10" diameter and about 6" long (though you could remove the gears which are not that thick.) The planet gears are about the size of quarters and there are a dozen of them. The setup takes the 260hp that the engine produces. Now THAT would be a dieselbike! However the cons are $$$$$!! and I don't know about the ability of the setup to take reverse loads on deceleration, or shock loads. So mostly I'm just telling a story that won't help you much.
