5/8 or 3/4 inch jackshaft?

[Dodgeboydan]

Hey guys
I was looking around at jackshafts for my bonanza project an nnoticed something. I was going to run a 5/8 jackshaft and sprockets for a 40/41/420 chain but I stumbled across the asuza jackshaft kit and when you go to a 40/41 chain, the only kit I could find has a 3/4 jackshaft. Do you guys have an opinion on which I should go with?:shrug:

 

[1BadFox]

Hey guys
I was looking around at jackshafts for my bonanza project an nnoticed something. I was going to run a 5/8 jackshaft and sprockets for a 40/41/420 chain but I stumbled across the asuza jackshaft kit and when you go to a 40/41 chain, the only kit I could find has a 3/4 jackshaft. Do you guys have an opinion on which I should go with?:shrug:

You can run whatever chain you want on any size jack shaft. The jack shaft sprocket that you choose will determine that.

I run a #35 chain sprocket from the engine on my 5/8 jack shaft and then #40 sprocket out to the drive wheel. MFG kart supply has the most choices of the ones that ive seen.

 

[Dodgeboydan]

Ok I will check them out. Will it support about 20hp ?

 

[Mac]

I haven't seen any decent 3/4" bearings to fit a Bonanza frame.

 

[1BadFox]

Ok I will check them out. Will it support about 20hp ?

IDK......... the fear factor involved with a jackshaft coming out with a 20hp engine would be enough to cause me not to run a jackshaft at all. :laugh:

 

[Dodgeboydan]

That's very true. I may have to do a little more research before a can say for sure what I'll end up with

 

[Motra]

Most minibikes use 1 3/8" OD bearings which pretty much limits your choice to 5/8" shaft size. 3/4" ID X 1 3/8" OD bearings are hard, if not impossible, to find.

 

[gumpit]

Most minibikes use 1 3/8" OD bearings which pretty much limits your choice to 5/8" shaft size. 3/4" ID X 1 3/8" OD bearings are hard, if not impossible, to find.

Go Kart Galaxy-Wheel Bearings, Rod End Bearings Like that one? #8273

 

[Big Jim]

3/4" ID x 1-3/8" OD x 7/16" Sealed Bearing 8273